GDALDataset *ISIS2Dataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* Does this look like a CUBE or an IMAGE Primary Data Object? */
/* -------------------------------------------------------------------- */
if( !Identify( poOpenInfo ) )
return NULL;
/* -------------------------------------------------------------------- */
/* Open the file using the large file API. */
/* -------------------------------------------------------------------- */
VSILFILE *fpQube = VSIFOpenL( poOpenInfo->pszFilename, "rb" );
if( fpQube == NULL )
return NULL;
ISIS2Dataset *poDS;
poDS = new ISIS2Dataset();
if( ! poDS->oKeywords.Ingest( fpQube, 0 ) )
{
VSIFCloseL( fpQube );
delete poDS;
return NULL;
}
VSIFCloseL( fpQube );
/* -------------------------------------------------------------------- */
/* We assume the user is pointing to the label (ie. .lab) file. */
/* -------------------------------------------------------------------- */
// QUBE can be inline or detached and point to an image name
// ^QUBE = 76
// ^QUBE = ("ui31s015.img",6441<BYTES>) - has another label on the image
// ^QUBE = "ui31s015.img" - which implies no label or skip value
const char *pszQube = poDS->GetKeyword( "^QUBE" );
GUIntBig nQube = 0;
int bByteLocation = FALSE;
CPLString osTargetFile = poOpenInfo->pszFilename;
if( pszQube[0] == '"' )
{
CPLString osTPath = CPLGetPath(poOpenInfo->pszFilename);
CPLString osFilename = pszQube;
poDS->CleanString( osFilename );
osTargetFile = CPLFormCIFilename( osTPath, osFilename, NULL );
poDS->osExternalCube = osTargetFile;
}
else if( pszQube[0] == '(' )
{
CPLString osTPath = CPLGetPath(poOpenInfo->pszFilename);
CPLString osFilename = poDS->GetKeywordSub("^QUBE",1,"");
poDS->CleanString( osFilename );
osTargetFile = CPLFormCIFilename( osTPath, osFilename, NULL );
poDS->osExternalCube = osTargetFile;
nQube = atoi(poDS->GetKeywordSub("^QUBE",2,"1"));
if( strstr(poDS->GetKeywordSub("^QUBE",2,"1"),"<BYTES>") != NULL )
bByteLocation = true;
}
else
{
nQube = atoi(pszQube);
if( strstr(pszQube,"<BYTES>") != NULL )
bByteLocation = true;
}
/* -------------------------------------------------------------------- */
/* Check if file an ISIS2 header file? Read a few lines of text */
/* searching for something starting with nrows or ncols. */
/* -------------------------------------------------------------------- */
GDALDataType eDataType = GDT_Byte;
OGRSpatialReference oSRS;
//image parameters
int nRows, nCols, nBands = 1;
GUIntBig nSkipBytes = 0;
int itype;
int s_ix, s_iy, s_iz; // check SUFFIX_ITEMS params.
int record_bytes;
int bNoDataSet = FALSE;
char chByteOrder = 'M'; //default to MSB
//Georef parameters
double dfULXMap=0.5;
double dfULYMap = 0.5;
double dfXDim = 1.0;
double dfYDim = 1.0;
double dfNoData = 0.0;
double xulcenter = 0.0;
double yulcenter = 0.0;
//projection parameters
int bProjectionSet = TRUE;
double semi_major = 0.0;
double semi_minor = 0.0;
double iflattening = 0.0;
double center_lat = 0.0;
double center_lon = 0.0;
double first_std_parallel = 0.0;
double second_std_parallel = 0.0;
VSILFILE *fp;
/* -------------------------------------------------------------------- */
/* Checks to see if this is valid ISIS2 cube */
/* SUFFIX_ITEM tag in .cub file should be (0,0,0); no side-planes */
/* -------------------------------------------------------------------- */
s_ix = atoi(poDS->GetKeywordSub( "QUBE.SUFFIX_ITEMS", 1 ));
s_iy = atoi(poDS->GetKeywordSub( "QUBE.SUFFIX_ITEMS", 2 ));
s_iz = atoi(poDS->GetKeywordSub( "QUBE.SUFFIX_ITEMS", 3 ));
if( s_ix != 0 || s_iy != 0 || s_iz != 0 )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"*** ISIS 2 cube file has invalid SUFFIX_ITEMS parameters:\n"
"*** gdal isis2 driver requires (0, 0, 0), thus no sideplanes or backplanes\n"
"found: (%i, %i, %i)\n\n", s_ix, s_iy, s_iz );
delete poDS;
return NULL;
}
/**************** end SUFFIX_ITEM check ***********************/
/*********** Grab layout type (BSQ, BIP, BIL) ************/
// AXIS_NAME = (SAMPLE,LINE,BAND)
/***********************************************************/
const char *value;
char szLayout[10] = "BSQ"; //default to band seq.
value = poDS->GetKeyword( "QUBE.AXIS_NAME", "" );
if (EQUAL(value,"(SAMPLE,LINE,BAND)") )
strcpy(szLayout,"BSQ");
else if (EQUAL(value,"(BAND,LINE,SAMPLE)") )
strcpy(szLayout,"BIP");
else if (EQUAL(value,"(SAMPLE,BAND,LINE)") || EQUAL(value,"") )
strcpy(szLayout,"BSQ");
else {
CPLError( CE_Failure, CPLE_OpenFailed,
"%s layout not supported. Abort\n\n", value);
delete poDS;
return NULL;
}
/*********** Grab samples lines band ************/
nCols = atoi(poDS->GetKeywordSub("QUBE.CORE_ITEMS",1));
nRows = atoi(poDS->GetKeywordSub("QUBE.CORE_ITEMS",2));
nBands = atoi(poDS->GetKeywordSub("QUBE.CORE_ITEMS",3));
/*********** Grab Qube record bytes **********/
record_bytes = atoi(poDS->GetKeyword("RECORD_BYTES"));
if (nQube > 0 && bByteLocation )
nSkipBytes = (nQube - 1);
else if( nQube > 0 )
nSkipBytes = (nQube - 1) * record_bytes;
else
nSkipBytes = 0;
/*********** Grab samples lines band ************/
CPLString osCoreItemType = poDS->GetKeyword( "QUBE.CORE_ITEM_TYPE" );
if( (EQUAL(osCoreItemType,"PC_INTEGER")) ||
(EQUAL(osCoreItemType,"PC_UNSIGNED_INTEGER")) ||
(EQUAL(osCoreItemType,"PC_REAL")) ) {
chByteOrder = 'I';
}
/******** Grab format type - isis2 only supports 8,16,32 *******/
itype = atoi(poDS->GetKeyword("QUBE.CORE_ITEM_BYTES",""));
switch(itype) {
case 1 :
eDataType = GDT_Byte;
dfNoData = NULL1;
bNoDataSet = TRUE;
break;
case 2 :
if( strstr(osCoreItemType,"UNSIGNED") != NULL )
{
dfNoData = 0;
eDataType = GDT_UInt16;
}
else
{
dfNoData = NULL2;
eDataType = GDT_Int16;
}
bNoDataSet = TRUE;
break;
case 4 :
eDataType = GDT_Float32;
dfNoData = NULL3;
bNoDataSet = TRUE;
break;
case 8 :
eDataType = GDT_Float64;
dfNoData = NULL3;
bNoDataSet = TRUE;
break;
default :
CPLError( CE_Failure, CPLE_AppDefined,
"Itype of %d is not supported in ISIS 2.",
itype);
delete poDS;
return NULL;
}
/*********** Grab Cellsize ************/
value = poDS->GetKeyword("QUBE.IMAGE_MAP_PROJECTION.MAP_SCALE");
if (strlen(value) > 0 ) {
dfXDim = (float) atof(value) * 1000.0; /* convert from km to m */
dfYDim = (float) atof(value) * 1000.0 * -1;
}
/*********** Grab LINE_PROJECTION_OFFSET ************/
value = poDS->GetKeyword("QUBE.IMAGE_MAP_PROJECTION.LINE_PROJECTION_OFFSET");
if (strlen(value) > 0) {
yulcenter = (float) atof(value);
yulcenter = ((yulcenter) * dfYDim);
dfULYMap = yulcenter - (dfYDim/2);
}
/*********** Grab SAMPLE_PROJECTION_OFFSET ************/
value = poDS->GetKeyword("QUBE.IMAGE_MAP_PROJECTION.SAMPLE_PROJECTION_OFFSET");
if( strlen(value) > 0 ) {
xulcenter = (float) atof(value);
xulcenter = ((xulcenter) * dfXDim);
dfULXMap = xulcenter - (dfXDim/2);
}
/*********** Grab TARGET_NAME ************/
/**** This is the planets name i.e. MARS ***/
CPLString target_name = poDS->GetKeyword("QUBE.TARGET_NAME");
/*********** Grab MAP_PROJECTION_TYPE ************/
CPLString map_proj_name =
poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.MAP_PROJECTION_TYPE");
poDS->CleanString( map_proj_name );
/*********** Grab SEMI-MAJOR ************/
semi_major =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.A_AXIS_RADIUS")) * 1000.0;
/*********** Grab semi-minor ************/
semi_minor =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.C_AXIS_RADIUS")) * 1000.0;
/*********** Grab CENTER_LAT ************/
center_lat =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.CENTER_LATITUDE"));
/*********** Grab CENTER_LON ************/
center_lon =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.CENTER_LONGITUDE"));
/*********** Grab 1st std parallel ************/
first_std_parallel =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.FIRST_STANDARD_PARALLEL"));
/*********** Grab 2nd std parallel ************/
second_std_parallel =
atof(poDS->GetKeyword( "QUBE.IMAGE_MAP_PROJECTION.SECOND_STANDARD_PARALLEL"));
/*** grab PROJECTION_LATITUDE_TYPE = "PLANETOCENTRIC" ****/
// Need to further study how ocentric/ographic will effect the gdal library.
// So far we will use this fact to define a sphere or ellipse for some projections
// Frank - may need to talk this over
char bIsGeographic = TRUE;
value = poDS->GetKeyword("CUBE.IMAGE_MAP_PROJECTION.PROJECTION_LATITUDE_TYPE");
if (EQUAL( value, "\"PLANETOCENTRIC\"" ))
bIsGeographic = FALSE;
CPLDebug("ISIS2","using projection %s", map_proj_name.c_str() );
//Set oSRS projection and parameters
if ((EQUAL( map_proj_name, "EQUIRECTANGULAR_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIRECTANGULAR" )) ||
(EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ) {
oSRS.OGRSpatialReference::SetEquirectangular2 ( 0.0, center_lon, center_lat, 0, 0 );
} else if (EQUAL( map_proj_name, "ORTHOGRAPHIC" )) {
oSRS.OGRSpatialReference::SetOrthographic ( center_lat, center_lon, 0, 0 );
} else if ((EQUAL( map_proj_name, "SINUSOIDAL" )) ||
(EQUAL( map_proj_name, "SINUSOIDAL_EQUAL-AREA" ))) {
oSRS.OGRSpatialReference::SetSinusoidal ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "MERCATOR" )) {
oSRS.OGRSpatialReference::SetMercator ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC" )) {
oSRS.OGRSpatialReference::SetPS ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "TRANSVERSE_MERCATOR" )) {
oSRS.OGRSpatialReference::SetTM ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "LAMBERT_CONFORMAL_CONIC" )) {
oSRS.OGRSpatialReference::SetLCC ( first_std_parallel, second_std_parallel, center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "") ) {
/* no projection */
bProjectionSet = FALSE;
} else {
CPLDebug( "ISIS2",
"Dataset projection %s is not supported. Continuing...",
map_proj_name.c_str() );
bProjectionSet = FALSE;
}
if (bProjectionSet) {
//Create projection name, i.e. MERCATOR MARS and set as ProjCS keyword
CPLString proj_target_name = map_proj_name + " " + target_name;
oSRS.SetProjCS(proj_target_name); //set ProjCS keyword
//The geographic/geocentric name will be the same basic name as the body name
//'GCS' = Geographic/Geocentric Coordinate System
CPLString geog_name = "GCS_" + target_name;
//The datum and sphere names will be the same basic name aas the planet
CPLString datum_name = "D_" + target_name;
CPLString sphere_name = target_name; // + "_IAU_IAG"); //Might not be IAU defined so don't add
//calculate inverse flattening from major and minor axis: 1/f = a/(a-b)
if ((semi_major - semi_minor) < 0.0000001)
iflattening = 0;
else
iflattening = semi_major / (semi_major - semi_minor);
//Set the body size but take into consideration which proj is being used to help w/ proj4 compatibility
//The use of a Sphere, polar radius or ellipse here is based on how ISIS does it internally
if ( ( (EQUAL( map_proj_name, "STEREOGRAPHIC" ) && (fabs(center_lat) == 90)) ) ||
(EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC" )))
{
if (bIsGeographic) {
//Geograpraphic, so set an ellipse
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere using the semi-minor axis. I hope...
sphere_name += "_polarRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_minor, 0.0,
"Reference_Meridian", 0.0 );
}
}
else if ( (EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "ORTHOGRAPHIC" )) ||
(EQUAL( map_proj_name, "STEREOGRAPHIC" )) ||
(EQUAL( map_proj_name, "SINUSOIDAL_EQUAL-AREA" )) ||
(EQUAL( map_proj_name, "SINUSOIDAL" )) ) {
//isis uses the sphereical equation for these projections so force a sphere
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else if ((EQUAL( map_proj_name, "EQUIRECTANGULAR_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIRECTANGULAR" )) ) {
//Calculate localRadius using ISIS3 simple elliptical method
// not the more standard Radius of Curvature method
//PI = 4 * atan(1);
double radLat, localRadius;
if (center_lon == 0) { //No need to calculate local radius
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
} else {
radLat = center_lat * PI / 180; // in radians
localRadius = semi_major * semi_minor / sqrt(pow(semi_minor*cos(radLat),2)
+ pow(semi_major*sin(radLat),2) );
sphere_name += "_localRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
localRadius, 0.0,
"Reference_Meridian", 0.0 );
CPLDebug( "ISIS2", "local radius: %f", localRadius);
}
}
else {
//All other projections: Mercator, Transverse Mercator, Lambert Conformal, etc.
//Geographic, so set an ellipse
if (bIsGeographic) {
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere. I hope...
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
}
// translate back into a projection string.
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
poDS->osProjection = pszResult;
CPLFree( pszResult );
}
/* END ISIS2 Label Read */
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* -------------------------------------------------------------------- */
/* Did we get the required keywords? If not we return with */
/* this never having been considered to be a match. This isn't */
/* an error! */
/* -------------------------------------------------------------------- */
if( nRows < 1 || nCols < 1 || nBands < 1 )
{
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
poDS->nRasterXSize = nCols;
poDS->nRasterYSize = nRows;
/* -------------------------------------------------------------------- */
/* Open target binary file. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_ReadOnly )
poDS->fpImage = VSIFOpenL( osTargetFile, "rb" );
else
poDS->fpImage = VSIFOpenL( osTargetFile, "r+b" );
if( poDS->fpImage == NULL )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to open %s with write permission.\n%s",
osTargetFile.c_str(), VSIStrerror( errno ) );
delete poDS;
return NULL;
}
poDS->eAccess = poOpenInfo->eAccess;
/* -------------------------------------------------------------------- */
/* Compute the line offset. */
/* -------------------------------------------------------------------- */
int nItemSize = GDALGetDataTypeSize(eDataType)/8;
int nLineOffset, nPixelOffset, nBandOffset;
if( EQUAL(szLayout,"BIP") )
{
nPixelOffset = nItemSize * nBands;
nLineOffset = nPixelOffset * nCols;
nBandOffset = nItemSize;
}
else if( EQUAL(szLayout,"BSQ") )
{
nPixelOffset = nItemSize;
nLineOffset = nPixelOffset * nCols;
nBandOffset = nLineOffset * nRows;
}
else /* assume BIL */
{
nPixelOffset = nItemSize;
nLineOffset = nItemSize * nBands * nCols;
nBandOffset = nItemSize * nCols;
}
/* -------------------------------------------------------------------- */
/* Create band information objects. */
/* -------------------------------------------------------------------- */
int i;
poDS->nBands = nBands;;
for( i = 0; i < poDS->nBands; i++ )
{
RawRasterBand *poBand;
poBand =
new RawRasterBand( poDS, i+1, poDS->fpImage,
nSkipBytes + nBandOffset * i,
nPixelOffset, nLineOffset, eDataType,
#ifdef CPL_LSB
chByteOrder == 'I' || chByteOrder == 'L',
#else
chByteOrder == 'M',
#endif
TRUE );
if( bNoDataSet )
poBand->SetNoDataValue( dfNoData );
poDS->SetBand( i+1, poBand );
// Set offset/scale values at the PAM level.
poBand->SetOffset(
CPLAtofM(poDS->GetKeyword("QUBE.CORE_BASE","0.0")));
poBand->SetScale(
CPLAtofM(poDS->GetKeyword("QUBE.CORE_MULTIPLIER","1.0")));
}
/* -------------------------------------------------------------------- */
/* Check for a .prj file. For isis2 I would like to keep this in */
/* -------------------------------------------------------------------- */
CPLString osPath, osName;
osPath = CPLGetPath( poOpenInfo->pszFilename );
osName = CPLGetBasename(poOpenInfo->pszFilename);
const char *pszPrjFile = CPLFormCIFilename( osPath, osName, "prj" );
fp = VSIFOpenL( pszPrjFile, "r" );
if( fp != NULL )
{
char **papszLines;
OGRSpatialReference oSRS;
VSIFCloseL( fp );
papszLines = CSLLoad( pszPrjFile );
if( oSRS.importFromESRI( papszLines ) == OGRERR_NONE )
{
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
poDS->osProjection = pszResult;
CPLFree( pszResult );
}
CSLDestroy( papszLines );
}
if( dfULYMap != 0.5 || dfULYMap != 0.5 || dfXDim != 1.0 || dfYDim != 1.0 )
{
poDS->bGotTransform = TRUE;
poDS->adfGeoTransform[0] = dfULXMap;
poDS->adfGeoTransform[1] = dfXDim;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = dfULYMap;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = dfYDim;
}
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, "cbw",
poDS->adfGeoTransform );
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, "wld",
poDS->adfGeoTransform );
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
return( poDS );
}
void PDSDataset::ParseSRS()
{
const char *pszFilename = GetDescription();
/* ==================================================================== */
/* Get the geotransform. */
/* ==================================================================== */
/*********** Grab Cellsize ************/
//example:
//MAP_SCALE = 14.818 <KM/PIXEL>
//added search for unit (only checks for CM, KM - defaults to Meters)
const char *value;
//Georef parameters
double dfULXMap=0.5;
double dfULYMap = 0.5;
double dfXDim = 1.0;
double dfYDim = 1.0;
double xulcenter = 0.0;
double yulcenter = 0.0;
value = GetKeyword("IMAGE_MAP_PROJECTION.MAP_SCALE");
if (strlen(value) > 0 ) {
dfXDim = atof(value);
dfYDim = atof(value) * -1;
CPLString unit = GetKeywordUnit("IMAGE_MAP_PROJECTION.MAP_SCALE",2); //KM
//value = GetKeywordUnit("IMAGE_MAP_PROJECTION.MAP_SCALE",3); //PIXEL
if((EQUAL(unit,"M")) || (EQUAL(unit,"METER")) || (EQUAL(unit,"METERS"))) {
// do nothing
}
else if (EQUAL(unit,"CM")) {
// convert from cm to m
dfXDim = dfXDim / 100.0;
dfYDim = dfYDim / 100.0;
} else {
//defaults to convert km to m
dfXDim = dfXDim * 1000.0;
dfYDim = dfYDim * 1000.0;
}
}
/* -------------------------------------------------------------------- */
/* Calculate upper left corner of pixel in meters from the */
/* upper left center pixel sample/line offsets. It doesn't */
/* mean the defaults will work for every PDS image, as these */
/* values are used inconsistantly. Thus we have included */
/* conversion options to allow the user to override the */
/* documented PDS3 default. Jan. 2011, for known mapping issues */
/* see GDAL PDS page or mapping within ISIS3 source (USGS) */
/* $ISIS3DATA/base/translations/pdsProjectionLineSampToXY.def */
/* -------------------------------------------------------------------- */
// defaults should be correct for what is documented in the PDS3 standard
double dfSampleOffset_Shift;
double dfLineOffset_Shift;
double dfSampleOffset_Mult;
double dfLineOffset_Mult;
dfSampleOffset_Shift =
atof(CPLGetConfigOption( "PDS_SampleProjOffset_Shift", "-0.5" ));
dfLineOffset_Shift =
atof(CPLGetConfigOption( "PDS_LineProjOffset_Shift", "-0.5" ));
dfSampleOffset_Mult =
atof(CPLGetConfigOption( "PDS_SampleProjOffset_Mult", "-1.0") );
dfLineOffset_Mult =
atof( CPLGetConfigOption( "PDS_LineProjOffset_Mult", "1.0") );
/*********** Grab LINE_PROJECTION_OFFSET ************/
value = GetKeyword("IMAGE_MAP_PROJECTION.LINE_PROJECTION_OFFSET");
if (strlen(value) > 0) {
yulcenter = atof(value);
dfULYMap = ((yulcenter + dfLineOffset_Shift) * -dfYDim * dfLineOffset_Mult);
//notice dfYDim is negative here which is why it is again negated here
}
/*********** Grab SAMPLE_PROJECTION_OFFSET ************/
value = GetKeyword("IMAGE_MAP_PROJECTION.SAMPLE_PROJECTION_OFFSET");
if( strlen(value) > 0 ) {
xulcenter = atof(value);
dfULXMap = ((xulcenter + dfSampleOffset_Shift) * dfXDim * dfSampleOffset_Mult);
}
/* ==================================================================== */
/* Get the coordinate system. */
/* ==================================================================== */
int bProjectionSet = TRUE;
double semi_major = 0.0;
double semi_minor = 0.0;
double iflattening = 0.0;
double center_lat = 0.0;
double center_lon = 0.0;
double first_std_parallel = 0.0;
double second_std_parallel = 0.0;
OGRSpatialReference oSRS;
/*********** Grab TARGET_NAME ************/
/**** This is the planets name i.e. MARS ***/
CPLString target_name = GetKeyword("TARGET_NAME");
CleanString( target_name );
/********** Grab MAP_PROJECTION_TYPE *****/
CPLString map_proj_name =
GetKeyword( "IMAGE_MAP_PROJECTION.MAP_PROJECTION_TYPE");
CleanString( map_proj_name );
/****** Grab semi_major & convert to KM ******/
semi_major =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.A_AXIS_RADIUS")) * 1000.0;
/****** Grab semi-minor & convert to KM ******/
semi_minor =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.C_AXIS_RADIUS")) * 1000.0;
/*********** Grab CENTER_LAT ************/
center_lat =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.CENTER_LATITUDE"));
/*********** Grab CENTER_LON ************/
center_lon =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.CENTER_LONGITUDE"));
/********** Grab 1st std parallel *******/
first_std_parallel =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.FIRST_STANDARD_PARALLEL"));
/********** Grab 2nd std parallel *******/
second_std_parallel =
atof(GetKeyword( "IMAGE_MAP_PROJECTION.SECOND_STANDARD_PARALLEL"));
/*** grab PROJECTION_LATITUDE_TYPE = "PLANETOCENTRIC" ****/
// Need to further study how ocentric/ographic will effect the gdal library.
// So far we will use this fact to define a sphere or ellipse for some projections
// Frank - may need to talk this over
char bIsGeographic = TRUE;
value = GetKeyword("IMAGE_MAP_PROJECTION.COORDINATE_SYSTEM_NAME");
if (EQUAL( value, "PLANETOCENTRIC" ))
bIsGeographic = FALSE;
/** Set oSRS projection and parameters --- all PDS supported types added if apparently supported in oSRS
"AITOFF", ** Not supported in GDAL??
"ALBERS",
"BONNE",
"BRIESEMEISTER", ** Not supported in GDAL??
"CYLINDRICAL EQUAL AREA",
"EQUIDISTANT",
"EQUIRECTANGULAR",
"GNOMONIC",
"HAMMER", ** Not supported in GDAL??
"HENDU", ** Not supported in GDAL??
"LAMBERT AZIMUTHAL EQUAL AREA",
"LAMBERT CONFORMAL",
"MERCATOR",
"MOLLWEIDE",
"OBLIQUE CYLINDRICAL",
"ORTHOGRAPHIC",
"SIMPLE CYLINDRICAL",
"SINUSOIDAL",
"STEREOGRAPHIC",
"TRANSVERSE MERCATOR",
"VAN DER GRINTEN", ** Not supported in GDAL??
"WERNER" ** Not supported in GDAL??
**/
CPLDebug( "PDS","using projection %s\n\n", map_proj_name.c_str());
if ((EQUAL( map_proj_name, "EQUIRECTANGULAR" )) ||
(EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIDISTANT" )) ) {
oSRS.SetEquirectangular2 ( 0.0, center_lon, center_lat, 0, 0 );
} else if (EQUAL( map_proj_name, "ORTHOGRAPHIC" )) {
oSRS.SetOrthographic ( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "SINUSOIDAL" )) {
oSRS.SetSinusoidal ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "MERCATOR" )) {
oSRS.SetMercator ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "STEREOGRAPHIC" )) {
oSRS.SetStereographic ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC")) {
oSRS.SetPS ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "TRANSVERSE_MERCATOR" )) {
oSRS.SetTM ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "LAMBERT_CONFORMAL_CONIC" )) {
oSRS.SetLCC ( first_std_parallel, second_std_parallel,
center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "LAMBERT_AZIMUTHAL_EQUAL_AREA" )) {
oSRS.SetLAEA( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "CYLINDRICAL_EQUAL_AREA" )) {
oSRS.SetCEA ( first_std_parallel, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "MOLLWEIDE" )) {
oSRS.SetMollweide ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "ALBERS" )) {
oSRS.SetACEA ( first_std_parallel, second_std_parallel,
center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "BONNE" )) {
oSRS.SetBonne ( first_std_parallel, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "GNOMONIC" )) {
oSRS.SetGnomonic ( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "OBLIQUE_CYLINDRICAL" )) {
// hope Swiss Oblique Cylindrical is the same
oSRS.SetSOC ( center_lat, center_lon, 0, 0 );
} else {
CPLDebug( "PDS",
"Dataset projection %s is not supported. Continuing...",
map_proj_name.c_str() );
bProjectionSet = FALSE;
}
if (bProjectionSet) {
//Create projection name, i.e. MERCATOR MARS and set as ProjCS keyword
CPLString proj_target_name = map_proj_name + " " + target_name;
oSRS.SetProjCS(proj_target_name); //set ProjCS keyword
//The geographic/geocentric name will be the same basic name as the body name
//'GCS' = Geographic/Geocentric Coordinate System
CPLString geog_name = "GCS_" + target_name;
//The datum and sphere names will be the same basic name aas the planet
CPLString datum_name = "D_" + target_name;
CPLString sphere_name = target_name; // + "_IAU_IAG"); //Might not be IAU defined so don't add
//calculate inverse flattening from major and minor axis: 1/f = a/(a-b)
if ((semi_major - semi_minor) < 0.0000001)
iflattening = 0;
else
iflattening = semi_major / (semi_major - semi_minor);
//Set the body size but take into consideration which proj is being used to help w/ compatibility
//Notice that most PDS projections are spherical based on the fact that ISIS/PICS are spherical
//Set the body size but take into consideration which proj is being used to help w/ proj4 compatibility
//The use of a Sphere, polar radius or ellipse here is based on how ISIS does it internally
if ( ( (EQUAL( map_proj_name, "STEREOGRAPHIC" ) && (fabs(center_lat) == 90)) ) ||
(EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC" )))
{
if (bIsGeographic) {
//Geograpraphic, so set an ellipse
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere using the semi-minor axis. I hope...
sphere_name += "_polarRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_minor, 0.0,
"Reference_Meridian", 0.0 );
}
}
else if ( (EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIDISTANT" )) ||
(EQUAL( map_proj_name, "ORTHOGRAPHIC" )) ||
(EQUAL( map_proj_name, "STEREOGRAPHIC" )) ||
(EQUAL( map_proj_name, "SINUSOIDAL" )) ) {
//isis uses the spherical equation for these projections so force a sphere
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else if (EQUAL( map_proj_name, "EQUIRECTANGULAR" )) {
//isis uses local radius as a sphere, which is pre-calculated in the PDS label as the semi-major
sphere_name += "_localRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else {
//All other projections: Mercator, Transverse Mercator, Lambert Conformal, etc.
//Geographic, so set an ellipse
if (bIsGeographic) {
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere. I hope...
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
}
// translate back into a projection string.
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
osProjection = pszResult;
CPLFree( pszResult );
}
/* ==================================================================== */
/* Check for a .prj and world file to override the georeferencing. */
/* ==================================================================== */
{
CPLString osPath, osName;
VSILFILE *fp;
osPath = CPLGetPath( pszFilename );
osName = CPLGetBasename(pszFilename);
const char *pszPrjFile = CPLFormCIFilename( osPath, osName, "prj" );
fp = VSIFOpenL( pszPrjFile, "r" );
if( fp != NULL )
{
char **papszLines;
OGRSpatialReference oSRS;
VSIFCloseL( fp );
papszLines = CSLLoad( pszPrjFile );
if( oSRS.importFromESRI( papszLines ) == OGRERR_NONE )
{
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
osProjection = pszResult;
CPLFree( pszResult );
}
CSLDestroy( papszLines );
}
}
if( dfULYMap != 0.5 || dfULYMap != 0.5 || dfXDim != 1.0 || dfYDim != 1.0 )
{
bGotTransform = TRUE;
adfGeoTransform[0] = dfULXMap;
adfGeoTransform[1] = dfXDim;
adfGeoTransform[2] = 0.0;
adfGeoTransform[3] = dfULYMap;
adfGeoTransform[4] = 0.0;
adfGeoTransform[5] = dfYDim;
}
if( !bGotTransform )
bGotTransform =
GDALReadWorldFile( pszFilename, "psw",
adfGeoTransform );
if( !bGotTransform )
bGotTransform =
GDALReadWorldFile( pszFilename, "wld",
adfGeoTransform );
}
GDALDataset *DIMAPDataset::Open( GDALOpenInfo * poOpenInfo )
{
if( !Identify( poOpenInfo ) )
return NULL;
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLError( CE_Failure, CPLE_NotSupported,
"The DIMAP driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Get the metadata filename. */
/* -------------------------------------------------------------------- */
CPLString osMDFilename;
if( poOpenInfo->bIsDirectory )
{
osMDFilename =
CPLFormCIFilename( poOpenInfo->pszFilename, "METADATA.DIM", NULL );
}
else
osMDFilename = poOpenInfo->pszFilename;
/* -------------------------------------------------------------------- */
/* Ingest the xml file. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psProduct, *psImageAttributes;
psProduct = CPLParseXMLFile( osMDFilename );
if( psProduct == NULL )
return NULL;
CPLXMLNode *psDoc = CPLGetXMLNode( psProduct, "=Dimap_Document" );
psImageAttributes = CPLGetXMLNode( psDoc, "Raster_Dimensions" );
if( psImageAttributes == NULL )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to find <Raster_Dimensions> in document." );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create the dataset. */
/* -------------------------------------------------------------------- */
DIMAPDataset *poDS = new DIMAPDataset();
poDS->psProduct = psProduct;
/* -------------------------------------------------------------------- */
/* Get overall image information. */
/* -------------------------------------------------------------------- */
#ifdef DEBUG
int nBands =
atoi(CPLGetXMLValue( psImageAttributes, "NBANDS", "-1" ));
#endif
poDS->nRasterXSize =
atoi(CPLGetXMLValue( psImageAttributes, "NCOLS", "-1" ));
poDS->nRasterYSize =
atoi(CPLGetXMLValue( psImageAttributes, "NROWS", "-1" ));
/* -------------------------------------------------------------------- */
/* Get the name of the underlying file. */
/* -------------------------------------------------------------------- */
const char *pszHref = CPLGetXMLValue(
psDoc, "Data_Access.Data_File.DATA_FILE_PATH.href", "" );
CPLString osPath = CPLGetPath(osMDFilename);
CPLString osImageFilename =
CPLFormFilename( osPath, pszHref, NULL );
/* -------------------------------------------------------------------- */
/* Try and open the file. */
/* -------------------------------------------------------------------- */
poDS->poImageDS = (GDALDataset *) GDALOpen( osImageFilename, GA_ReadOnly );
if( poDS->poImageDS == NULL )
{
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Attach the bands. */
/* -------------------------------------------------------------------- */
int iBand;
CPLAssert( nBands == poDS->poImageDS->GetRasterCount() );
for( iBand = 1; iBand <= poDS->poImageDS->GetRasterCount(); iBand++ )
poDS->SetBand( iBand, poDS->poImageDS->GetRasterBand( iBand ) );
/* -------------------------------------------------------------------- */
/* Try to collect simple insertion point. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psGeoLoc =
CPLGetXMLNode( psDoc, "Geoposition.Geoposition_Insert" );
if( psGeoLoc != NULL )
{
poDS->bHaveGeoTransform = TRUE;
poDS->adfGeoTransform[0] = atof(CPLGetXMLValue(psGeoLoc,"ULXMAP","0"));
poDS->adfGeoTransform[1] = atof(CPLGetXMLValue(psGeoLoc,"XDIM","0"));
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = atof(CPLGetXMLValue(psGeoLoc,"ULYMAP","0"));
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = -atof(CPLGetXMLValue(psGeoLoc,"YDIM","0"));
}
/* -------------------------------------------------------------------- */
/* Collect GCPs. */
/* -------------------------------------------------------------------- */
psGeoLoc = CPLGetXMLNode( psDoc, "Geoposition.Geoposition_Points" );
if( psGeoLoc != NULL )
{
CPLXMLNode *psNode;
// count gcps.
poDS->nGCPCount = 0;
for( psNode = psGeoLoc->psChild; psNode != NULL;
psNode = psNode->psNext )
{
if( EQUAL(psNode->pszValue,"Tie_Point") )
poDS->nGCPCount++ ;
}
poDS->pasGCPList = (GDAL_GCP *)
CPLCalloc(sizeof(GDAL_GCP),poDS->nGCPCount);
poDS->nGCPCount = 0;
for( psNode = psGeoLoc->psChild; psNode != NULL;
psNode = psNode->psNext )
{
char szID[32];
GDAL_GCP *psGCP = poDS->pasGCPList + poDS->nGCPCount;
if( !EQUAL(psNode->pszValue,"Tie_Point") )
continue;
poDS->nGCPCount++ ;
sprintf( szID, "%d", poDS->nGCPCount );
psGCP->pszId = CPLStrdup( szID );
psGCP->pszInfo = CPLStrdup("");
psGCP->dfGCPPixel =
atof(CPLGetXMLValue(psNode,"TIE_POINT_DATA_X","0"))-0.5;
psGCP->dfGCPLine =
atof(CPLGetXMLValue(psNode,"TIE_POINT_DATA_Y","0"))-0.5;
psGCP->dfGCPX =
atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_X",""));
psGCP->dfGCPY =
atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_Y",""));
psGCP->dfGCPZ =
atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_Z",""));
}
}
/* -------------------------------------------------------------------- */
/* Collect the CRS. For now we look only for EPSG codes. */
/* -------------------------------------------------------------------- */
const char *pszSRS = CPLGetXMLValue(
psDoc,
"Coordinate_Reference_System.Horizontal_CS.HORIZONTAL_CS_CODE",
NULL );
if( pszSRS != NULL )
{
OGRSpatialReference oSRS;
if( oSRS.SetFromUserInput( pszSRS ) == OGRERR_NONE )
{
if( poDS->nGCPCount > 0 )
{
CPLFree(poDS->pszGCPProjection);
oSRS.exportToWkt( &(poDS->pszGCPProjection) );
}
else
{
char *pszProjection = NULL;
oSRS.exportToWkt( &pszProjection );
poDS->osProjection = pszProjection;
CPLFree( pszProjection );
}
}
}
/* -------------------------------------------------------------------- */
/* Translate other metadata of interest. */
/* -------------------------------------------------------------------- */
static const char *apszMetadataTranslation[] =
{
"Production", "",
"Production.Facility", "FACILITY_",
"Dataset_Sources.Source_Information.Scene_Source", "",
"Data_Processing", "",
"Image_Interpretation.Spectral_Band_Info", "SPECTRAL_",
NULL, NULL
};
int iTrItem;
for( iTrItem = 0; apszMetadataTranslation[iTrItem] != NULL; iTrItem += 2 )
{
CPLXMLNode *psParent =
CPLGetXMLNode( psDoc, apszMetadataTranslation[iTrItem] );
if( psParent == NULL )
continue;
// hackey logic to support directly access a name/value entry
// or a parent element with many name/values.
CPLXMLNode *psTarget;
if( psParent->psChild != NULL
&& psParent->psChild->eType == CXT_Text )
psTarget = psParent;
else
psTarget = psParent->psChild;
for( ; psTarget != NULL && psTarget != psParent;
psTarget = psTarget->psNext )
{
if( psTarget->eType == CXT_Element
&& psTarget->psChild != NULL
&& psTarget->psChild->eType == CXT_Text )
{
CPLString osName = apszMetadataTranslation[iTrItem+1];
osName += psTarget->pszValue;
poDS->SetMetadataItem( osName, psTarget->psChild->pszValue );
}
}
}
/* -------------------------------------------------------------------- */
/* Set Band metadata from the <Spectral_Band_Info> content */
/* -------------------------------------------------------------------- */
CPLXMLNode *psImageInterpretationNode =
CPLGetXMLNode( psDoc, "Image_Interpretation" );
if (psImageInterpretationNode != NULL)
{
CPLXMLNode *psSpectralBandInfoNode = psImageInterpretationNode->psChild;
while (psSpectralBandInfoNode != NULL)
{
if (psSpectralBandInfoNode->eType == CXT_Element &&
EQUAL(psSpectralBandInfoNode->pszValue, "Spectral_Band_Info"))
{
CPLXMLNode *psTag = psSpectralBandInfoNode->psChild;
int nBandIndex = 0;
while(psTag != NULL)
{
if (psTag->eType == CXT_Element && psTag->psChild != NULL &&
psTag->psChild->eType == CXT_Text && psTag->pszValue != NULL)
{
if (EQUAL(psTag->pszValue, "BAND_INDEX"))
{
nBandIndex = atoi(psTag->psChild->pszValue);
if (nBandIndex <= 0 ||
nBandIndex > poDS->poImageDS->GetRasterCount())
{
CPLError(CE_Warning, CPLE_AppDefined,
"Bad BAND_INDEX value : %s", psTag->psChild->pszValue);
nBandIndex = 0;
}
}
else if (nBandIndex >= 1)
{
poDS->GetRasterBand(nBandIndex)->SetMetadataItem(
psTag->pszValue, psTag->psChild->pszValue);
}
}
psTag = psTag->psNext;
}
}
psSpectralBandInfoNode = psSpectralBandInfoNode->psNext;
}
}
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( osMDFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, osMDFilename );
return( poDS );
}
GDALDataset *LANDataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* We assume the user is pointing to the header (.pcb) file. */
/* Does this appear to be a pcb file? */
/* -------------------------------------------------------------------- */
if( poOpenInfo->nHeaderBytes < ERD_HEADER_SIZE )
return NULL;
if( !STARTS_WITH_CI((const char *)poOpenInfo->pabyHeader, "HEADER")
&& !STARTS_WITH_CI((const char *)poOpenInfo->pabyHeader, "HEAD74") )
return NULL;
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
LANDataset *poDS = new LANDataset();
poDS->eAccess = poOpenInfo->eAccess;
/* -------------------------------------------------------------------- */
/* Adopt the openinfo file pointer for use with this file. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_ReadOnly )
poDS->fpImage = VSIFOpenL( poOpenInfo->pszFilename, "rb" );
else
poDS->fpImage = VSIFOpenL( poOpenInfo->pszFilename, "rb+" );
if( poDS->fpImage == NULL )
{
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Do we need to byte swap the headers to local machine order? */
/* -------------------------------------------------------------------- */
int bBigEndian = poOpenInfo->pabyHeader[8] == 0;
memcpy( poDS->pachHeader, poOpenInfo->pabyHeader, ERD_HEADER_SIZE );
#ifdef CPL_LSB
const int bNeedSwap = bBigEndian;
#else
const int bNeedSwap = !bBigEndian;
#endif
if( bNeedSwap )
{
CPL_SWAP16PTR( poDS->pachHeader + 6 );
CPL_SWAP16PTR( poDS->pachHeader + 8 );
CPL_SWAP32PTR( poDS->pachHeader + 16 );
CPL_SWAP32PTR( poDS->pachHeader + 20 );
CPL_SWAP32PTR( poDS->pachHeader + 24 );
CPL_SWAP32PTR( poDS->pachHeader + 28 );
CPL_SWAP16PTR( poDS->pachHeader + 88 );
CPL_SWAP16PTR( poDS->pachHeader + 90 );
CPL_SWAP16PTR( poDS->pachHeader + 106 );
CPL_SWAP32PTR( poDS->pachHeader + 108 );
CPL_SWAP32PTR( poDS->pachHeader + 112 );
CPL_SWAP32PTR( poDS->pachHeader + 116 );
CPL_SWAP32PTR( poDS->pachHeader + 120 );
CPL_SWAP32PTR( poDS->pachHeader + 124 );
}
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
if( STARTS_WITH_CI(poDS->pachHeader,"HEADER") )
{
float fTmp;
memcpy(&fTmp, poDS->pachHeader + 16, 4);
CPL_LSBPTR32(&fTmp);
poDS->nRasterXSize = (int) fTmp;
memcpy(&fTmp, poDS->pachHeader + 20, 4);
CPL_LSBPTR32(&fTmp);
poDS->nRasterYSize = (int) fTmp;
}
else
{
GInt32 nTmp;
memcpy(&nTmp, poDS->pachHeader + 16, 4);
CPL_LSBPTR32(&nTmp);
poDS->nRasterXSize = nTmp;
memcpy(&nTmp, poDS->pachHeader + 20, 4);
CPL_LSBPTR32(&nTmp);
poDS->nRasterYSize = nTmp;
}
GInt16 nTmp16;
memcpy(&nTmp16, poDS->pachHeader + 6, 2);
CPL_LSBPTR16(&nTmp16);
int nPixelOffset;
GDALDataType eDataType;
if( nTmp16 == 0 )
{
eDataType = GDT_Byte;
nPixelOffset = 1;
}
else if( nTmp16 == 1 ) /* 4bit! */
{
eDataType = GDT_Byte;
nPixelOffset = -1;
}
else if( nTmp16 == 2 )
{
nPixelOffset = 2;
eDataType = GDT_Int16;
}
else
{
CPLError( CE_Failure, CPLE_AppDefined,
"Unsupported pixel type (%d).",
nTmp16 );
delete poDS;
return NULL;
}
memcpy(&nTmp16, poDS->pachHeader + 8, 2);
CPL_LSBPTR16(&nTmp16);
const int nBandCount = nTmp16;
if (!GDALCheckDatasetDimensions(poDS->nRasterXSize, poDS->nRasterYSize) ||
!GDALCheckBandCount(nBandCount, FALSE))
{
delete poDS;
return NULL;
}
if( nPixelOffset != -1 && poDS->nRasterXSize > INT_MAX / (nPixelOffset*nBandCount) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Int overflow occurred.");
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create band information object. */
/* -------------------------------------------------------------------- */
CPLErrorReset();
for( int iBand = 1; iBand <= nBandCount; iBand++ )
{
if( nPixelOffset == -1 ) /* 4 bit case */
poDS->SetBand( iBand,
new LAN4BitRasterBand( poDS, iBand ) );
else
poDS->SetBand(
iBand,
new RawRasterBand( poDS, iBand, poDS->fpImage,
ERD_HEADER_SIZE + (iBand-1)
* nPixelOffset * poDS->nRasterXSize,
nPixelOffset,
poDS->nRasterXSize*nPixelOffset*nBandCount,
eDataType, !bNeedSwap, TRUE ));
if( CPLGetLastErrorType() != CE_None )
{
delete poDS;
return NULL;
}
}
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->CheckForStatistics();
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
/* -------------------------------------------------------------------- */
/* Try to interpret georeferencing. */
/* -------------------------------------------------------------------- */
float fTmp;
memcpy(&fTmp, poDS->pachHeader + 112, 4);
CPL_LSBPTR32(&fTmp);
poDS->adfGeoTransform[0] = fTmp;
memcpy(&fTmp, poDS->pachHeader + 120, 4);
CPL_LSBPTR32(&fTmp);
poDS->adfGeoTransform[1] = fTmp;
poDS->adfGeoTransform[2] = 0.0;
memcpy(&fTmp, poDS->pachHeader + 116, 4);
CPL_LSBPTR32(&fTmp);
poDS->adfGeoTransform[3] = fTmp;
poDS->adfGeoTransform[4] = 0.0;
memcpy(&fTmp, poDS->pachHeader + 124, 4);
CPL_LSBPTR32(&fTmp);
poDS->adfGeoTransform[5] = - fTmp;
// adjust for center of pixel vs. top left corner of pixel.
poDS->adfGeoTransform[0] -= poDS->adfGeoTransform[1] * 0.5;
poDS->adfGeoTransform[3] -= poDS->adfGeoTransform[5] * 0.5;
/* -------------------------------------------------------------------- */
/* If we didn't get any georeferencing, try for a worldfile. */
/* -------------------------------------------------------------------- */
if( poDS->adfGeoTransform[1] == 0.0
|| poDS->adfGeoTransform[5] == 0.0 )
{
if( !GDALReadWorldFile( poOpenInfo->pszFilename, NULL,
poDS->adfGeoTransform ) )
GDALReadWorldFile( poOpenInfo->pszFilename, ".wld",
poDS->adfGeoTransform );
}
/* -------------------------------------------------------------------- */
/* Try to come up with something for the coordinate system. */
/* -------------------------------------------------------------------- */
memcpy(&nTmp16, poDS->pachHeader + 88, 2);
CPL_LSBPTR16(&nTmp16);
int nCoordSys = nTmp16;
if( nCoordSys == 0 )
{
poDS->pszProjection = CPLStrdup(SRS_WKT_WGS84);
}
else if( nCoordSys == 1 )
{
poDS->pszProjection =
CPLStrdup("LOCAL_CS[\"UTM - Zone Unknown\",UNIT[\"Meter\",1]]");
}
else if( nCoordSys == 2 )
{
poDS->pszProjection = CPLStrdup("LOCAL_CS[\"State Plane - Zone Unknown\",UNIT[\"US survey foot\",0.3048006096012192]]");
}
else
{
poDS->pszProjection =
CPLStrdup("LOCAL_CS[\"Unknown\",UNIT[\"Meter\",1]]");
}
/* -------------------------------------------------------------------- */
/* Check for a trailer file with a colormap in it. */
/* -------------------------------------------------------------------- */
char *pszPath = CPLStrdup(CPLGetPath(poOpenInfo->pszFilename));
char *pszBasename = CPLStrdup(CPLGetBasename(poOpenInfo->pszFilename));
const char *pszTRLFilename =
CPLFormCIFilename( pszPath, pszBasename, "trl" );
VSILFILE *fpTRL = VSIFOpenL( pszTRLFilename, "rb" );
if( fpTRL != NULL )
{
char szTRLData[896];
CPL_IGNORE_RET_VAL(VSIFReadL( szTRLData, 1, 896, fpTRL ));
CPL_IGNORE_RET_VAL(VSIFCloseL( fpTRL ));
GDALColorTable *poCT = new GDALColorTable();
for( int iColor = 0; iColor < 256; iColor++ )
{
GDALColorEntry sEntry;
sEntry.c2 = ((GByte *) szTRLData)[iColor+128];
sEntry.c1 = ((GByte *) szTRLData)[iColor+128+256];
sEntry.c3 = ((GByte *) szTRLData)[iColor+128+512];
sEntry.c4 = 255;
poCT->SetColorEntry( iColor, &sEntry );
// only 16 colors in 4bit files.
if( nPixelOffset == -1 && iColor == 15 )
break;
}
poDS->GetRasterBand(1)->SetColorTable( poCT );
poDS->GetRasterBand(1)->SetColorInterpretation( GCI_PaletteIndex );
delete poCT;
}
CPLFree( pszPath );
CPLFree( pszBasename );
return( poDS );
}
GDALDataset *SAFEDataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* Is this a SENTINEL-1 manifest.safe definition? */
/* -------------------------------------------------------------------- */
if ( !SAFEDataset::Identify( poOpenInfo ) ) {
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Get subdataset information, if relevant */
/* -------------------------------------------------------------------- */
CPLString osMDFilename;
//Subdataset 1st level selection (ex: for swath selection)
CPLString osSelectedSubDS1;
//Subdataset 2nd level selection (ex: for polarisation selection)
CPLString osSelectedSubDS2;
if (STARTS_WITH_CI(poOpenInfo->pszFilename, "SENTINEL1_DS:"))
{
osMDFilename = poOpenInfo->pszFilename + strlen("SENTINEL1_DS:");
const char* pszSelection1 = strrchr(osMDFilename.c_str(), ':');
if (pszSelection1 == nullptr || pszSelection1 == osMDFilename.c_str() )
{
CPLError(CE_Failure, CPLE_AppDefined, "Invalid syntax for SENTINEL1_DS:");
return nullptr;
}
osMDFilename.resize( pszSelection1 - osMDFilename.c_str() );
osSelectedSubDS1 = pszSelection1 + strlen(":");
const char* pszSelection2 = strchr(osSelectedSubDS1.c_str(), '_');
if (pszSelection2 != nullptr && pszSelection2 != pszSelection1 )
{
osSelectedSubDS1.resize( pszSelection2 - osSelectedSubDS1.c_str() );
osSelectedSubDS2 = pszSelection2 + strlen("_");
}
//update directory check:
VSIStatBufL sStat;
if( VSIStatL( osMDFilename.c_str(), &sStat ) == 0 )
poOpenInfo->bIsDirectory = VSI_ISDIR( sStat.st_mode );
}
else
{
osMDFilename = poOpenInfo->pszFilename;
}
if( poOpenInfo->bIsDirectory )
{
osMDFilename =
CPLFormCIFilename( osMDFilename.c_str(), "manifest.safe", nullptr );
}
/* -------------------------------------------------------------------- */
/* Ingest the manifest.safe file. */
/* -------------------------------------------------------------------- */
//TODO REMOVE CPLXMLNode *psImageAttributes, *psImageGenerationParameters;
CPLXMLNode *psManifest = CPLParseXMLFile( osMDFilename );
if( psManifest == nullptr )
return nullptr;
CPLString osPath(CPLGetPath( osMDFilename ));
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLDestroyXMLNode( psManifest );
CPLError( CE_Failure, CPLE_NotSupported,
"The SAFE driver does not support update access to existing"
" datasets.\n" );
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Get contentUnit parent element. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psContentUnits = CPLGetXMLNode(
psManifest,
"=xfdu:XFDU.informationPackageMap.xfdu:contentUnit" );
if( psContentUnits == nullptr )
{
CPLDestroyXMLNode( psManifest );
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to find <xfdu:XFDU><informationPackageMap>"
"<xfdu:contentUnit> in manifest file." );
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Get Metadata Objects element. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psMetaDataObjects
= CPLGetXMLNode( psManifest, "=xfdu:XFDU.metadataSection" );
if( psMetaDataObjects == nullptr )
{
CPLDestroyXMLNode( psManifest );
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to find <xfdu:XFDU><metadataSection>"
"in manifest file." );
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Get Data Objects element. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psDataObjects
= CPLGetXMLNode( psManifest, "=xfdu:XFDU.dataObjectSection" );
if( psDataObjects == nullptr )
{
CPLDestroyXMLNode( psManifest );
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to find <xfdu:XFDU><dataObjectSection> in document." );
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Create the dataset. */
/* -------------------------------------------------------------------- */
SAFEDataset *poDS = new SAFEDataset();
poDS->psManifest = psManifest;
/* -------------------------------------------------------------------- */
/* Look for "Measurement Data Unit" contentUnit elements. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psAnnotation = nullptr;
//Map with all measures aggregated by swath
std::map<CPLString, std::set<CPLString> > oMapSwaths2Pols;
for( CPLXMLNode *psContentUnit = psContentUnits->psChild;
psContentUnit != nullptr;
psContentUnit = psContentUnit->psNext )
{
if( psContentUnit->eType != CXT_Element
|| !(EQUAL(psContentUnit->pszValue,"xfdu:contentUnit")) ) {
continue;
}
const char *pszUnitType = CPLGetXMLValue( psContentUnit,
"unitType", "" );
const char *pszAnnotation = nullptr;
const char *pszCalibration = nullptr;
const char *pszMeasurement = nullptr;
if ( EQUAL(pszUnitType, "Measurement Data Unit") ) {
/* Get dmdID and dataObjectID */
const char *pszDmdID = CPLGetXMLValue(psContentUnit, "dmdID", "");
const char *pszDataObjectID = CPLGetXMLValue(
psContentUnit,
"dataObjectPointer.dataObjectID", "" );
if( *pszDataObjectID == '\0' || *pszDmdID == '\0' ) {
continue;
}
CPLXMLNode *psDataObject = SAFEDataset::GetDataObject(
psDataObjects, pszDataObjectID);
const char *pszRepId = CPLGetXMLValue( psDataObject, "repID", "" );
if ( !EQUAL(pszRepId, "s1Level1MeasurementSchema") ) {
continue;
}
pszMeasurement = CPLGetXMLValue(
psDataObject, "byteStream.fileLocation.href", "");
if( *pszMeasurement == '\0' ) {
continue;
}
char** papszTokens = CSLTokenizeString2( pszDmdID, " ",
CSLT_ALLOWEMPTYTOKENS | CSLT_STRIPLEADSPACES
| CSLT_STRIPENDSPACES );
for( int j = 0; j < CSLCount( papszTokens ); j++ ) {
const char* pszId = papszTokens[j];
if( *pszId == '\0' ) {
continue;
}
//Map the metadata ID to the object element
CPLXMLNode *psDO = SAFEDataset::GetDataObject(
psMetaDataObjects, psDataObjects, pszId);
if (psDO == nullptr) {
continue;
}
//check object type
pszRepId = CPLGetXMLValue( psDO, "repID", "" );
if( EQUAL(pszRepId, "s1Level1ProductSchema") )
{
/* Get annotation filename */
pszAnnotation = CPLGetXMLValue(
psDO, "byteStream.fileLocation.href", "");
if( *pszAnnotation == '\0' )
{
continue;
}
}
else if( EQUAL(pszRepId, "s1Level1CalibrationSchema") )
{
pszCalibration = CPLGetXMLValue(
psDO, "byteStream.fileLocation.href", "");
if( *pszCalibration == '\0' ) {
continue;
}
}
else
{
continue;
}
}
CSLDestroy(papszTokens);
if (pszAnnotation == nullptr || pszCalibration == nullptr ) {
continue;
}
//open Annotation XML file
CPLString osAnnotationFilePath = CPLFormFilename( osPath,
pszAnnotation, nullptr );
if( psAnnotation )
CPLDestroyXMLNode(psAnnotation);
psAnnotation = CPLParseXMLFile( osAnnotationFilePath );
if( psAnnotation == nullptr )
continue;
/* -------------------------------------------------------------------- */
/* Get overall image information. */
/* -------------------------------------------------------------------- */
poDS->nRasterXSize =
atoi(CPLGetXMLValue( psAnnotation,
"=product.imageAnnotation.imageInformation.numberOfSamples",
"-1" ));
poDS->nRasterYSize =
atoi(CPLGetXMLValue( psAnnotation,
"=product.imageAnnotation.imageInformation.numberOfLines",
"-1" ));
if (poDS->nRasterXSize <= 1 || poDS->nRasterYSize <= 1) {
CPLError( CE_Failure, CPLE_OpenFailed,
"Non-sane raster dimensions provided in manifest.safe. "
"If this is a valid SENTINEL-1 scene, please contact your "
"data provider for a corrected dataset." );
delete poDS;
CPLDestroyXMLNode(psAnnotation);
return nullptr;
}
CPLString osProductType = CPLGetXMLValue(
psAnnotation, "=product.adsHeader.productType", "UNK" );
CPLString osMissionId = CPLGetXMLValue(
psAnnotation, "=product.adsHeader.missionId", "UNK" );
CPLString osPolarisation = CPLGetXMLValue(
psAnnotation, "=product.adsHeader.polarisation", "UNK" );
CPLString osMode = CPLGetXMLValue(
psAnnotation, "=product.adsHeader.mode", "UNK" );
CPLString osSwath = CPLGetXMLValue(
psAnnotation, "=product.adsHeader.swath", "UNK" );
oMapSwaths2Pols[osSwath].insert(osPolarisation);
if (osSelectedSubDS1.empty()) {
// If not subdataset was selected,
// open the first one we can find.
osSelectedSubDS1 = osSwath;
}
if (!EQUAL(osSelectedSubDS1.c_str(), osSwath.c_str())) {
//do not mix swath, otherwise it does not work for SLC products
continue;
}
if (!osSelectedSubDS2.empty()
&& (osSelectedSubDS2.find(osPolarisation)== std::string::npos)) {
// Add only selected polarisations.
continue;
}
poDS->SetMetadataItem("PRODUCT_TYPE", osProductType.c_str());
poDS->SetMetadataItem("MISSION_ID", osMissionId.c_str());
poDS->SetMetadataItem("MODE", osMode.c_str());
poDS->SetMetadataItem("SWATH", osSwath.c_str());
/* -------------------------------------------------------------------- */
/* Get dataType (so we can recognize complex data), and the */
/* bitsPerSample. */
/* -------------------------------------------------------------------- */
const char *pszDataType = CPLGetXMLValue(
psAnnotation,
"=product.imageAnnotation.imageInformation.outputPixels",
"" );
GDALDataType eDataType;
if( EQUAL(pszDataType,"16 bit Signed Integer") )
eDataType = GDT_CInt16;
else if( EQUAL(pszDataType,"16 bit Unsigned Integer") )
eDataType = GDT_UInt16;
else
{
delete poDS;
CPLError( CE_Failure, CPLE_AppDefined,
"dataType=%s: not a supported configuration.",
pszDataType );
CPLDestroyXMLNode(psAnnotation);
return nullptr;
}
/* Extract pixel spacing information */
const char *pszPixelSpacing = CPLGetXMLValue(
psAnnotation,
"=product.imageAnnotation.imageInformation.rangePixelSpacing",
"UNK" );
poDS->SetMetadataItem( "PIXEL_SPACING", pszPixelSpacing );
const char *pszLineSpacing = CPLGetXMLValue(
psAnnotation,
"=product.imageAnnotation.imageInformation.azimuthPixelSpacing",
"UNK" );
poDS->SetMetadataItem( "LINE_SPACING", pszLineSpacing );
/* -------------------------------------------------------------------- */
/* Form full filename (path of manifest.safe + measurement file). */
/* -------------------------------------------------------------------- */
char *pszFullname =
CPLStrdup(CPLFormFilename( osPath, pszMeasurement, nullptr ));
/* -------------------------------------------------------------------- */
/* Try and open the file. */
/* -------------------------------------------------------------------- */
GDALDataset *poBandFile = reinterpret_cast<GDALDataset *>(
GDALOpen( pszFullname, GA_ReadOnly ) );
if( poBandFile == nullptr )
{
// NOP
}
else
if (poBandFile->GetRasterCount() == 0)
{
GDALClose( (GDALRasterBandH) poBandFile );
}
else {
poDS->papszExtraFiles = CSLAddString( poDS->papszExtraFiles,
osAnnotationFilePath );
poDS->papszExtraFiles = CSLAddString( poDS->papszExtraFiles,
pszFullname );
/* -------------------------------------------------------------------- */
/* Create the band. */
/* -------------------------------------------------------------------- */
SAFERasterBand *poBand
= new SAFERasterBand( poDS, eDataType,
osSwath.c_str(),
osPolarisation.c_str(),
poBandFile );
poDS->SetBand( poDS->GetRasterCount() + 1, poBand );
}
CPLFree( pszFullname );
}
}
//loop through all Swath/pols to add subdatasets
int iSubDS = 1;
for (std::map<CPLString, std::set<CPLString> >::iterator iterSwath=oMapSwaths2Pols.begin();
iterSwath!=oMapSwaths2Pols.end(); ++iterSwath)
{
CPLString osSubDS1 = iterSwath->first;
CPLString osSubDS2;
for (std::set<CPLString>::iterator iterPol=iterSwath->second.begin();
iterPol!=iterSwath->second.end(); ++iterPol)
{
if (!osSubDS2.empty()) {
osSubDS2 += "+";
}
osSubDS2 += *iterPol;
//Create single band SubDataset
SAFEDataset::AddSubDataset(poDS, iSubDS,
CPLSPrintf("SENTINEL1_DS:%s:%s_%s",
osPath.c_str(),
osSubDS1.c_str(),
(*iterPol).c_str()),
CPLSPrintf("Single band with %s swath and %s polarisation",
osSubDS1.c_str(),
(*iterPol).c_str())
);
iSubDS++;
}
if (iterSwath->second.size()>1) {
//Create single band SubDataset with all polarisations
SAFEDataset::AddSubDataset(poDS, iSubDS,
CPLSPrintf("SENTINEL1_DS:%s:%s",
osPath.c_str(),
osSubDS1.c_str()),
CPLSPrintf("%s swath with all polarisations as bands",
osSubDS1.c_str())
);
iSubDS++;
}
}
if (poDS->GetRasterCount() == 0) {
CPLError( CE_Failure, CPLE_OpenFailed, "Measurement bands not found." );
delete poDS;
if( psAnnotation )
CPLDestroyXMLNode(psAnnotation);
return nullptr;
}
/* -------------------------------------------------------------------- */
/* Collect more metadata elements */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
/* Platform information */
/* -------------------------------------------------------------------- */
CPLXMLNode *psPlatformAttrs = SAFEDataset::GetMetaDataObject(
psMetaDataObjects, "platform");
if (psPlatformAttrs != nullptr) {
const char *pszItem = CPLGetXMLValue(
psPlatformAttrs,
"metadataWrap.xmlData.safe:platform"
".safe:familyName", "" );
poDS->SetMetadataItem( "SATELLITE_IDENTIFIER", pszItem );
pszItem = CPLGetXMLValue(
psPlatformAttrs,
"metadataWrap.xmlData.safe:platform"
".safe:instrument.safe:familyName.abbreviation", "" );
poDS->SetMetadataItem( "SENSOR_IDENTIFIER", pszItem );
pszItem = CPLGetXMLValue(
psPlatformAttrs,
"metadataWrap.xmlData.safe:platform"
".safe:instrument.safe:extension"
".s1sarl1:instrumentMode.s1sarl1:mode", "UNK" );
poDS->SetMetadataItem( "BEAM_MODE", pszItem );
pszItem = CPLGetXMLValue(
psPlatformAttrs,
"metadataWrap.xmlData.safe:platform"
".safe:instrument.safe:extension"
".s1sarl1:instrumentMode.s1sarl1:swath", "UNK" );
poDS->SetMetadataItem( "BEAM_SWATH", pszItem );
}
/* -------------------------------------------------------------------- */
/* Acquisition Period information */
/* -------------------------------------------------------------------- */
CPLXMLNode *psAcquisitionAttrs = SAFEDataset::GetMetaDataObject(
psMetaDataObjects, "acquisitionPeriod");
if (psAcquisitionAttrs != nullptr) {
const char *pszItem = CPLGetXMLValue(
psAcquisitionAttrs,
"metadataWrap.xmlData.safe:acquisitionPeriod"
".safe:startTime", "UNK" );
poDS->SetMetadataItem( "ACQUISITION_START_TIME", pszItem );
pszItem = CPLGetXMLValue(
psAcquisitionAttrs,
"metadataWrap.xmlData.safe:acquisitionPeriod"
".safe:stopTime", "UNK" );
poDS->SetMetadataItem( "ACQUISITION_STOP_TIME", pszItem );
}
/* -------------------------------------------------------------------- */
/* Processing information */
/* -------------------------------------------------------------------- */
CPLXMLNode *psProcessingAttrs = SAFEDataset::GetMetaDataObject(
psMetaDataObjects, "processing");
if (psProcessingAttrs != nullptr) {
const char *pszItem = CPLGetXMLValue(
psProcessingAttrs,
"metadataWrap.xmlData.safe:processing.safe:facility.name", "UNK" );
poDS->SetMetadataItem( "FACILITY_IDENTIFIER", pszItem );
}
/* -------------------------------------------------------------------- */
/* Measurement Orbit Reference information */
/* -------------------------------------------------------------------- */
CPLXMLNode *psOrbitAttrs = SAFEDataset::GetMetaDataObject(
psMetaDataObjects, "measurementOrbitReference");
if (psOrbitAttrs != nullptr) {
const char *pszItem = CPLGetXMLValue( psOrbitAttrs,
"metadataWrap.xmlData.safe:orbitReference"
".safe:orbitNumber", "UNK" );
poDS->SetMetadataItem( "ORBIT_NUMBER", pszItem );
pszItem = CPLGetXMLValue( psOrbitAttrs,
"metadataWrap.xmlData.safe:orbitReference"
".safe:extension.s1:orbitProperties.s1:pass", "UNK" );
poDS->SetMetadataItem( "ORBIT_DIRECTION", pszItem );
}
/* -------------------------------------------------------------------- */
/* Collect Annotation Processing Information */
/* -------------------------------------------------------------------- */
CPLXMLNode *psProcessingInfo =
CPLGetXMLNode( psAnnotation,
"=product.imageAnnotation.processingInformation" );
if ( psProcessingInfo != nullptr ) {
OGRSpatialReference oLL, oPrj;
const char *pszEllipsoidName = CPLGetXMLValue(
psProcessingInfo, "ellipsoidName", "" );
const double minor_axis = CPLAtof(CPLGetXMLValue(
psProcessingInfo, "ellipsoidSemiMinorAxis", "0.0" ));
const double major_axis = CPLAtof(CPLGetXMLValue(
psProcessingInfo, "ellipsoidSemiMajorAxis", "0.0" ));
if ( EQUAL(pszEllipsoidName, "") || ( minor_axis == 0.0 ) ||
( major_axis == 0.0 ) )
{
CPLError(CE_Warning,CPLE_AppDefined,"Warning- incomplete"
" ellipsoid information. Using wgs-84 parameters.\n");
oLL.SetWellKnownGeogCS( "WGS84" );
oPrj.SetWellKnownGeogCS( "WGS84" );
}
else if ( EQUAL( pszEllipsoidName, "WGS84" ) ) {
oLL.SetWellKnownGeogCS( "WGS84" );
oPrj.SetWellKnownGeogCS( "WGS84" );
}
else {
const double inv_flattening = major_axis/(major_axis - minor_axis);
oLL.SetGeogCS( "","",pszEllipsoidName, major_axis,
inv_flattening);
oPrj.SetGeogCS( "","",pszEllipsoidName, major_axis,
inv_flattening);
}
CPLFree( poDS->pszGCPProjection );
poDS->pszGCPProjection = nullptr;
oLL.exportToWkt( &(poDS->pszGCPProjection) );
}
/* -------------------------------------------------------------------- */
/* Collect GCPs. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psGeoGrid =
CPLGetXMLNode( psAnnotation,
"=product.geolocationGrid.geolocationGridPointList" );
if( psGeoGrid != nullptr ) {
/* count GCPs */
poDS->nGCPCount = 0;
for( CPLXMLNode *psNode = psGeoGrid->psChild; psNode != nullptr;
psNode = psNode->psNext )
{
if( EQUAL(psNode->pszValue,"geolocationGridPoint") )
poDS->nGCPCount++ ;
}
poDS->pasGCPList = reinterpret_cast<GDAL_GCP *>(
CPLCalloc( sizeof(GDAL_GCP), poDS->nGCPCount ) );
poDS->nGCPCount = 0;
for( CPLXMLNode *psNode = psGeoGrid->psChild; psNode != nullptr;
psNode = psNode->psNext )
{
GDAL_GCP *psGCP = poDS->pasGCPList + poDS->nGCPCount;
if( !EQUAL(psNode->pszValue,"geolocationGridPoint") )
continue;
poDS->nGCPCount++ ;
char szID[32];
snprintf( szID, sizeof(szID), "%d", poDS->nGCPCount );
psGCP->pszId = CPLStrdup( szID );
psGCP->pszInfo = CPLStrdup("");
psGCP->dfGCPPixel = CPLAtof(CPLGetXMLValue(psNode,"pixel","0"));
psGCP->dfGCPLine = CPLAtof(CPLGetXMLValue(psNode,"line","0"));
psGCP->dfGCPX = CPLAtof(CPLGetXMLValue(psNode,"longitude",""));
psGCP->dfGCPY = CPLAtof(CPLGetXMLValue(psNode,"latitude",""));
psGCP->dfGCPZ = CPLAtof(CPLGetXMLValue(psNode,"height",""));
}
}
CPLDestroyXMLNode(psAnnotation);
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
const CPLString osDescription = osMDFilename;
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( osDescription );
poDS->SetPhysicalFilename( osMDFilename );
poDS->SetSubdatasetName( osDescription );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, ":::VIRTUAL:::" );
return poDS;
}
FILE *FASTDataset::FOpenChannel( const char *pszBandname, int iBand, int iFASTBand )
{
const char *pszChannelFilename = NULL;
char *pszPrefix = CPLStrdup( CPLGetBasename( pszFilename ) );
char *pszSuffix = CPLStrdup( CPLGetExtension( pszFilename ) );
fpChannels[iBand] = NULL;
switch ( iSatellite )
{
case LANDSAT:
if ( pszBandname && !EQUAL( pszBandname, "" ) )
{
pszChannelFilename =
CPLFormCIFilename( pszDirname, pszBandname, NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename =
CPLFormFilename( pszDirname,
CPLSPrintf( "%s.b%02d", pszPrefix, iFASTBand ),
NULL );
OpenChannel( pszChannelFilename, iBand );
}
break;
case IRS:
default:
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "%s.%d", pszPrefix, iFASTBand ), pszSuffix );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "IMAGERY%d", iFASTBand ), pszSuffix );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "imagery%d", iFASTBand ), pszSuffix );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "IMAGERY%d.DAT", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "imagery%d.dat", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "IMAGERY%d.dat", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "imagery%d.DAT", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "BAND%d", iFASTBand ), pszSuffix );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "band%d", iFASTBand ), pszSuffix );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "BAND%d.DAT", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "band%d.dat", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "BAND%d.dat", iFASTBand ), NULL );
if ( OpenChannel( pszChannelFilename, iBand ) )
break;
pszChannelFilename = CPLFormFilename( pszDirname,
CPLSPrintf( "band%d.DAT", iFASTBand ), NULL );
OpenChannel( pszChannelFilename, iBand );
break;
}
CPLDebug( "FAST", "Band %d filename=%s", iBand + 1, pszChannelFilename);
CPLFree( pszPrefix );
CPLFree( pszSuffix );
return fpChannels[iBand];
}
GDALDataset *SAGADataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* We assume the user is pointing to the binary (ie. .sdat) file. */
/* -------------------------------------------------------------------- */
if( !EQUAL(CPLGetExtension( poOpenInfo->pszFilename ), "sdat"))
{
return NULL;
}
CPLString osPath = CPLGetPath( poOpenInfo->pszFilename );
CPLString osName = CPLGetBasename( poOpenInfo->pszFilename );
CPLString osHDRFilename;
osHDRFilename = CPLFormCIFilename( osPath, osName, ".sgrd" );
VSILFILE *fp;
fp = VSIFOpenL( osHDRFilename, "r" );
if( fp == NULL )
{
return NULL;
}
/* -------------------------------------------------------------------- */
/* Is this file a SAGA header file? Read a few lines of text */
/* searching for something starting with nrows or ncols. */
/* -------------------------------------------------------------------- */
const char *pszLine;
int nRows = -1, nCols = -1;
double dXmin = 0.0, dYmin = 0.0, dCellsize = 0.0, dNoData = 0.0, dZFactor = 0.0;
int nLineCount = 0;
char szDataFormat[20] = "DOUBLE";
char szByteOrderBig[10] = "FALSE";
char szTopToBottom[10] = "FALSE";
char **papszHDR = NULL;
while( (pszLine = CPLReadLineL( fp )) != NULL )
{
char **papszTokens;
nLineCount++;
if( nLineCount > 50 || strlen(pszLine) > 1000 )
break;
papszHDR = CSLAddString( papszHDR, pszLine );
papszTokens = CSLTokenizeStringComplex( pszLine, " =", TRUE, FALSE );
if( CSLCount( papszTokens ) < 2 )
{
CSLDestroy( papszTokens );
continue;
}
if( EQUALN(papszTokens[0],"CELLCOUNT_X",strlen("CELLCOUNT_X")) )
nCols = atoi(papszTokens[1]);
else if( EQUALN(papszTokens[0],"CELLCOUNT_Y",strlen("CELLCOUNT_Y")) )
nRows = atoi(papszTokens[1]);
else if( EQUALN(papszTokens[0],"POSITION_XMIN",strlen("POSITION_XMIN")) )
dXmin = CPLAtofM(papszTokens[1]);
else if( EQUALN(papszTokens[0],"POSITION_YMIN",strlen("POSITION_YMIN")) )
dYmin = CPLAtofM(papszTokens[1]);
else if( EQUALN(papszTokens[0],"CELLSIZE",strlen("CELLSIZE")) )
dCellsize = CPLAtofM(papszTokens[1]);
else if( EQUALN(papszTokens[0],"NODATA_VALUE",strlen("NODATA_VALUE")) )
dNoData = CPLAtofM(papszTokens[1]);
else if( EQUALN(papszTokens[0],"DATAFORMAT",strlen("DATAFORMAT")) )
strncpy( szDataFormat, papszTokens[1], sizeof(szDataFormat)-1 );
else if( EQUALN(papszTokens[0],"BYTEORDER_BIG",strlen("BYTEORDER_BIG")) )
strncpy( szByteOrderBig, papszTokens[1], sizeof(szByteOrderBig)-1 );
else if( EQUALN(papszTokens[0],"TOPTOBOTTOM",strlen("TOPTOBOTTOM")) )
strncpy( szTopToBottom, papszTokens[1], sizeof(szTopToBottom)-1 );
else if( EQUALN(papszTokens[0],"Z_FACTOR",strlen("Z_FACTOR")) )
dZFactor = CPLAtofM(papszTokens[1]);
CSLDestroy( papszTokens );
}
VSIFCloseL( fp );
CSLDestroy( papszHDR );
/* -------------------------------------------------------------------- */
/* Did we get the required keywords? If not we return with */
/* this never having been considered to be a match. This isn't */
/* an error! */
/* -------------------------------------------------------------------- */
if( nRows == -1 || nCols == -1 )
{
return NULL;
}
if (!GDALCheckDatasetDimensions(nCols, nRows))
{
return NULL;
}
if( EQUALN(szTopToBottom,"TRUE",strlen("TRUE")) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Currently the SAGA Binary Grid driver does not support\n"
"SAGA grids written TOPTOBOTTOM.\n");
return NULL;
}
if( dZFactor != 1.0)
{
CPLError( CE_Warning, CPLE_AppDefined,
"Currently the SAGA Binary Grid driver does not support\n"
"ZFACTORs other than 1.\n");
}
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
SAGADataset *poDS = new SAGADataset();
poDS->eAccess = poOpenInfo->eAccess;
if( poOpenInfo->eAccess == GA_ReadOnly )
poDS->fp = VSIFOpenL( poOpenInfo->pszFilename, "rb" );
else
poDS->fp = VSIFOpenL( poOpenInfo->pszFilename, "r+b" );
if( poDS->fp == NULL )
{
delete poDS;
CPLError( CE_Failure, CPLE_OpenFailed,
"VSIFOpenL(%s) failed unexpectedly.",
poOpenInfo->pszFilename );
return NULL;
}
poDS->nRasterXSize = nCols;
poDS->nRasterYSize = nRows;
SAGARasterBand *poBand = new SAGARasterBand( poDS, 1 );
/* -------------------------------------------------------------------- */
/* Figure out the byte order. */
/* -------------------------------------------------------------------- */
if( EQUALN(szByteOrderBig,"TRUE",strlen("TRUE")) )
poBand->m_ByteOrder = 1;
else if( EQUALN(szByteOrderBig,"FALSE",strlen("FALSE")) )
poBand->m_ByteOrder = 0;
/* -------------------------------------------------------------------- */
/* Figure out the data type. */
/* -------------------------------------------------------------------- */
if( EQUAL(szDataFormat,"BIT") )
{
poBand->SetDataType(GDT_Byte);
poBand->m_nBits = 8;
}
else if( EQUAL(szDataFormat,"BYTE_UNSIGNED") )
{
poBand->SetDataType(GDT_Byte);
poBand->m_nBits = 8;
}
else if( EQUAL(szDataFormat,"BYTE") )
{
poBand->SetDataType(GDT_Byte);
poBand->m_nBits = 8;
}
else if( EQUAL(szDataFormat,"SHORTINT_UNSIGNED") )
{
poBand->SetDataType(GDT_UInt16);
poBand->m_nBits = 16;
}
else if( EQUAL(szDataFormat,"SHORTINT") )
{
poBand->SetDataType(GDT_Int16);
poBand->m_nBits = 16;
}
else if( EQUAL(szDataFormat,"INTEGER_UNSIGNED") )
{
poBand->SetDataType(GDT_UInt32);
poBand->m_nBits = 32;
}
else if( EQUAL(szDataFormat,"INTEGER") )
{
poBand->SetDataType(GDT_Int32);
poBand->m_nBits = 32;
}
else if( EQUAL(szDataFormat,"FLOAT") )
{
poBand->SetDataType(GDT_Float32);
poBand->m_nBits = 32;
}
else if( EQUAL(szDataFormat,"DOUBLE") )
{
poBand->SetDataType(GDT_Float64);
poBand->m_nBits = 64;
}
else
{
CPLError( CE_Failure, CPLE_NotSupported,
"SAGA driver does not support the dataformat %s.",
szDataFormat );
delete poBand;
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Save band information */
/* -------------------------------------------------------------------- */
poBand->m_Xmin = dXmin;
poBand->m_Ymin = dYmin;
poBand->m_NoData = dNoData;
poBand->m_Cellsize = dCellsize;
poBand->m_Rows = nRows;
poBand->m_Cols = nCols;
poDS->SetBand( 1, poBand );
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for a .prj file. */
/* -------------------------------------------------------------------- */
const char *pszPrjFilename = CPLFormCIFilename( osPath, osName, "prj" );
fp = VSIFOpenL( pszPrjFilename, "r" );
if( fp != NULL )
{
char **papszLines;
OGRSpatialReference oSRS;
VSIFCloseL( fp );
papszLines = CSLLoad( pszPrjFilename );
if( oSRS.importFromESRI( papszLines ) == OGRERR_NONE )
{
CPLFree( poDS->pszProjection );
oSRS.exportToWkt( &(poDS->pszProjection) );
}
CSLDestroy( papszLines );
}
/* -------------------------------------------------------------------- */
/* Check for external overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename, poOpenInfo->GetSiblingFiles() );
return poDS;
}
GDALDataset *ISIS3Dataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* Does this look like a CUBE dataset? */
/* -------------------------------------------------------------------- */
if( !Identify( poOpenInfo ) )
return NULL;
/* -------------------------------------------------------------------- */
/* Open the file using the large file API. */
/* -------------------------------------------------------------------- */
VSILFILE *fpQube = VSIFOpenL( poOpenInfo->pszFilename, "rb" );
if( fpQube == NULL )
return NULL;
ISIS3Dataset *poDS;
poDS = new ISIS3Dataset();
if( ! poDS->oKeywords.Ingest( fpQube, 0 ) )
{
VSIFCloseL( fpQube );
delete poDS;
return NULL;
}
VSIFCloseL( fpQube );
/* -------------------------------------------------------------------- */
/* Assume user is pointing to label (ie .lbl) file for detached option */
/* -------------------------------------------------------------------- */
// Image can be inline or detached and point to an image name
// the Format can be Tiled or Raw
// Object = Core
// StartByte = 65537
// Format = Tile
// TileSamples = 128
// TileLines = 128
//OR-----
// Object = Core
// StartByte = 1
// ^Core = r0200357_detatched.cub
// Format = BandSequential
//OR-----
// Object = Core
// StartByte = 1
// ^Core = r0200357_detached_tiled.cub
// Format = Tile
// TileSamples = 128
// TileLines = 128
/* -------------------------------------------------------------------- */
/* What file contains the actual data? */
/* -------------------------------------------------------------------- */
const char *pszCore = poDS->GetKeyword( "IsisCube.Core.^Core" );
CPLString osQubeFile;
if( EQUAL(pszCore,"") )
osQubeFile = poOpenInfo->pszFilename;
else
{
CPLString osPath = CPLGetPath( poOpenInfo->pszFilename );
osQubeFile = CPLFormFilename( osPath, pszCore, NULL );
poDS->osExternalCube = osQubeFile;
}
/* -------------------------------------------------------------------- */
/* Check if file an ISIS3 header file? Read a few lines of text */
/* searching for something starting with nrows or ncols. */
/* -------------------------------------------------------------------- */
GDALDataType eDataType = GDT_Byte;
OGRSpatialReference oSRS;
int nRows = -1;
int nCols = -1;
int nBands = 1;
int nSkipBytes = 0;
int tileSizeX = 0;
int tileSizeY = 0;
double dfULXMap=0.5;
double dfULYMap = 0.5;
double dfXDim = 1.0;
double dfYDim = 1.0;
double scaleFactor = 1.0;
double dfNoData = 0.0;
int bNoDataSet = FALSE;
char chByteOrder = 'M'; //default to MSB
char szLayout[32] = "BandSequential"; //default to band seq.
const char *target_name; //planet name
//projection parameters
const char *map_proj_name;
int bProjectionSet = TRUE;
char proj_target_name[200];
char geog_name[60];
char datum_name[60];
char sphere_name[60];
char bIsGeographic = TRUE;
double semi_major = 0.0;
double semi_minor = 0.0;
double iflattening = 0.0;
float center_lat = 0.0;
float center_lon = 0.0;
float first_std_parallel = 0.0;
float second_std_parallel = 0.0;
double radLat, localRadius;
VSILFILE *fp;
/************* Skipbytes *****************************/
nSkipBytes = atoi(poDS->GetKeyword("IsisCube.Core.StartByte","")) - 1;
/******* Grab format type (BandSequential, Tiled) *******/
const char *value;
value = poDS->GetKeyword( "IsisCube.Core.Format", "" );
if (EQUAL(value,"Tile") ) { //Todo
strcpy(szLayout,"Tiled");
/******* Get Tile Sizes *********/
tileSizeX = atoi(poDS->GetKeyword("IsisCube.Core.TileSamples",""));
tileSizeY = atoi(poDS->GetKeyword("IsisCube.Core.TileLines",""));
if (tileSizeX <= 0 || tileSizeY <= 0)
{
CPLError( CE_Failure, CPLE_OpenFailed, "Wrong tile dimensions : %d x %d",
tileSizeX, tileSizeY);
delete poDS;
return NULL;
}
}
else if (EQUAL(value,"BandSequential") )
strcpy(szLayout,"BSQ");
else {
CPLError( CE_Failure, CPLE_OpenFailed,
"%s layout not supported. Abort\n\n", value);
delete poDS;
return NULL;
}
/*********** Grab samples lines band ************/
nCols = atoi(poDS->GetKeyword("IsisCube.Core.Dimensions.Samples",""));
nRows = atoi(poDS->GetKeyword("IsisCube.Core.Dimensions.Lines",""));
nBands = atoi(poDS->GetKeyword("IsisCube.Core.Dimensions.Bands",""));
/****** Grab format type - ISIS3 only supports 8,U16,S16,32 *****/
const char *itype;
itype = poDS->GetKeyword( "IsisCube.Core.Pixels.Type" );
if (EQUAL(itype,"UnsignedByte") ) {
eDataType = GDT_Byte;
dfNoData = NULL1;
bNoDataSet = TRUE;
}
else if (EQUAL(itype,"UnsignedWord") ) {
eDataType = GDT_UInt16;
dfNoData = NULL1;
bNoDataSet = TRUE;
}
else if (EQUAL(itype,"SignedWord") ) {
eDataType = GDT_Int16;
dfNoData = NULL2;
bNoDataSet = TRUE;
}
else if (EQUAL(itype,"Real") || EQUAL(value,"") ) {
eDataType = GDT_Float32;
dfNoData = NULL3;
bNoDataSet = TRUE;
}
else {
CPLError( CE_Failure, CPLE_OpenFailed,
"%s layout type not supported. Abort\n\n", itype);
delete poDS;
return NULL;
}
/*********** Grab samples lines band ************/
value = poDS->GetKeyword( "IsisCube.Core.Pixels.ByteOrder");
if (EQUAL(value,"Lsb"))
chByteOrder = 'I';
/*********** Grab Cellsize ************/
value = poDS->GetKeyword("IsisCube.Mapping.PixelResolution");
if (strlen(value) > 0 ) {
dfXDim = atof(value); /* values are in meters */
dfYDim = -atof(value);
}
/*********** Grab UpperLeftCornerY ************/
value = poDS->GetKeyword("IsisCube.Mapping.UpperLeftCornerY");
if (strlen(value) > 0) {
dfULYMap = atof(value);
}
/*********** Grab UpperLeftCornerX ************/
value = poDS->GetKeyword("IsisCube.Mapping.UpperLeftCornerX");
if( strlen(value) > 0 ) {
dfULXMap = atof(value);
}
/*********** Grab TARGET_NAME ************/
/**** This is the planets name i.e. Mars ***/
target_name = poDS->GetKeyword("IsisCube.Mapping.TargetName");
/*********** Grab MAP_PROJECTION_TYPE ************/
map_proj_name =
poDS->GetKeyword( "IsisCube.Mapping.ProjectionName");
/*********** Grab SEMI-MAJOR ************/
semi_major =
atof(poDS->GetKeyword( "IsisCube.Mapping.EquatorialRadius"));
/*********** Grab semi-minor ************/
semi_minor =
atof(poDS->GetKeyword( "IsisCube.Mapping.PolarRadius"));
/*********** Grab CENTER_LAT ************/
center_lat =
atof(poDS->GetKeyword( "IsisCube.Mapping.CenterLatitude"));
/*********** Grab CENTER_LON ************/
center_lon =
atof(poDS->GetKeyword( "IsisCube.Mapping.CenterLongitude"));
/*********** Grab 1st std parallel ************/
first_std_parallel =
atof(poDS->GetKeyword( "IsisCube.Mapping.FirstStandardParallel"));
/*********** Grab 2nd std parallel ************/
second_std_parallel =
atof(poDS->GetKeyword( "IsisCube.Mapping.SecondStandardParallel"));
/*********** Grab scaleFactor ************/
scaleFactor =
atof(poDS->GetKeyword( "IsisCube.Mapping.scaleFactor"));
/*** grab LatitudeType = Planetographic ****/
// Need to further study how ocentric/ographic will effect the gdal library
// So far we will use this fact to define a sphere or ellipse for some
// projections
// Frank - may need to talk this over
value = poDS->GetKeyword("IsisCube.Mapping.LatitudeType");
if (EQUAL( value, "\"Planetocentric\"" ))
bIsGeographic = FALSE;
//Set oSRS projection and parameters
//############################################################
//ISIS3 Projection types
// Equirectangular
// LambertConformal
// Mercator
// ObliqueCylindrical //Todo
// Orthographic
// PolarStereographic
// SimpleCylindrical
// Sinusoidal
// TransverseMercator
#ifdef DEBUG
CPLDebug( "ISIS3", "using projection %s", map_proj_name);
#endif
if ((EQUAL( map_proj_name, "Equirectangular" )) ||
(EQUAL( map_proj_name, "SimpleCylindrical" )) ) {
oSRS.OGRSpatialReference::SetEquirectangular2 ( 0.0, center_lon, center_lat, 0, 0 );
} else if (EQUAL( map_proj_name, "Orthographic" )) {
oSRS.OGRSpatialReference::SetOrthographic ( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "Sinusoidal" )) {
oSRS.OGRSpatialReference::SetSinusoidal ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "Mercator" )) {
oSRS.OGRSpatialReference::SetMercator ( center_lat, center_lon, scaleFactor, 0, 0 );
} else if (EQUAL( map_proj_name, "PolarStereographic" )) {
oSRS.OGRSpatialReference::SetPS ( center_lat, center_lon, scaleFactor, 0, 0 );
} else if (EQUAL( map_proj_name, "TransverseMercator" )) {
oSRS.OGRSpatialReference::SetTM ( center_lat, center_lon, scaleFactor, 0, 0 );
} else if (EQUAL( map_proj_name, "LambertConformal" )) {
oSRS.OGRSpatialReference::SetLCC ( first_std_parallel, second_std_parallel, center_lat, center_lon, 0, 0 );
} else {
CPLDebug( "ISIS3",
"Dataset projection %s is not supported. Continuing...",
map_proj_name );
bProjectionSet = FALSE;
}
if (bProjectionSet) {
//Create projection name, i.e. MERCATOR MARS and set as ProjCS keyword
strcpy(proj_target_name, map_proj_name);
strcat(proj_target_name, " ");
strcat(proj_target_name, target_name);
oSRS.SetProjCS(proj_target_name); //set ProjCS keyword
//The geographic/geocentric name will be the same basic name as the body name
//'GCS' = Geographic/Geocentric Coordinate System
strcpy(geog_name, "GCS_");
strcat(geog_name, target_name);
//The datum name will be the same basic name as the planet
strcpy(datum_name, "D_");
strcat(datum_name, target_name);
strcpy(sphere_name, target_name);
//strcat(sphere_name, "_IAU_IAG"); //Might not be IAU defined so don't add
//calculate inverse flattening from major and minor axis: 1/f = a/(a-b)
if ((semi_major - semi_minor) < 0.0000001)
iflattening = 0;
else
iflattening = semi_major / (semi_major - semi_minor);
//Set the body size but take into consideration which proj is being used to help w/ proj4 compatibility
//The use of a Sphere, polar radius or ellipse here is based on how ISIS does it internally
if ( ( (EQUAL( map_proj_name, "Stereographic" ) && (fabs(center_lat) == 90)) ) ||
(EQUAL( map_proj_name, "PolarStereographic" )) )
{
if (bIsGeographic) {
//Geograpraphic, so set an ellipse
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere using the semi-minor axis. I hope...
strcat(sphere_name, "_polarRadius");
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_minor, 0.0,
"Reference_Meridian", 0.0 );
}
}
else if ( (EQUAL( map_proj_name, "SimpleCylindrical" )) ||
(EQUAL( map_proj_name, "Orthographic" )) ||
(EQUAL( map_proj_name, "Stereographic" )) ||
(EQUAL( map_proj_name, "Sinusoidal" )) ) {
//isis uses the sphereical equation for these projections so force a sphere
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else if (EQUAL( map_proj_name, "Equirectangular" )) {
//Calculate localRadius using ISIS3 simple elliptical method
// not the more standard Radius of Curvature method
//PI = 4 * atan(1);
radLat = center_lat * PI / 180; // in radians
localRadius = semi_major * semi_minor / sqrt(pow(semi_minor*cos(radLat),2)
+ pow(semi_major*sin(radLat),2) );
strcat(sphere_name, "_localRadius");
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
localRadius, 0.0,
"Reference_Meridian", 0.0 );
}
else {
//All other projections: Mercator, Transverse Mercator, Lambert Conformal, etc.
//Geographic, so set an ellipse
if (bIsGeographic) {
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere. I hope...
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
}
// translate back into a projection string.
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
poDS->osProjection = pszResult;
CPLFree( pszResult );
}
/* END ISIS3 Label Read */
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* -------------------------------------------------------------------- */
/* Is the CUB detached - if so, reset name to binary file? */
/* -------------------------------------------------------------------- */
#ifdef notdef
// Frank - is this correct?
//The extension already added on so don't add another. But is this needed?
char *pszPath = CPLStrdup( CPLGetPath( poOpenInfo->pszFilename ) );
char *pszName = CPLStrdup( CPLGetBasename( poOpenInfo->pszFilename ) );
if (bIsDetached)
pszCUBFilename = CPLFormCIFilename( pszPath, detachedCub, "" );
#endif
/* -------------------------------------------------------------------- */
/* Did we get the required keywords? If not we return with */
/* this never having been considered to be a match. This isn't */
/* an error! */
/* -------------------------------------------------------------------- */
if( nRows < 1 || nCols < 1 || nBands < 1 )
{
delete poDS;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
poDS->nRasterXSize = nCols;
poDS->nRasterYSize = nRows;
/* -------------------------------------------------------------------- */
/* Open target binary file. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_ReadOnly )
poDS->fpImage = VSIFOpenL( osQubeFile, "r" );
else
poDS->fpImage = VSIFOpenL( osQubeFile, "r+" );
if( poDS->fpImage == NULL )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to open %s with write permission.\n%s",
osQubeFile.c_str(),
VSIStrerror( errno ) );
delete poDS;
return NULL;
}
poDS->eAccess = poOpenInfo->eAccess;
/* -------------------------------------------------------------------- */
/* Compute the line offset. */
/* -------------------------------------------------------------------- */
int nItemSize = GDALGetDataTypeSize(eDataType)/8;
int nLineOffset=0, nPixelOffset=0, nBandOffset=0;
if( EQUAL(szLayout,"BSQ") )
{
nPixelOffset = nItemSize;
nLineOffset = nPixelOffset * nCols;
nBandOffset = nLineOffset * nRows;
}
else /* Tiled */
{
}
/* -------------------------------------------------------------------- */
/* Create band information objects. */
/* -------------------------------------------------------------------- */
int i;
#ifdef CPL_LSB
int bNativeOrder = !(chByteOrder == 'M');
#else
int bNativeOrder = (chByteOrder == 'M');
#endif
for( i = 0; i < nBands; i++ )
{
GDALRasterBand *poBand;
if( EQUAL(szLayout,"Tiled") )
{
poBand = new ISISTiledBand( poDS, poDS->fpImage, i+1, eDataType,
tileSizeX, tileSizeY,
nSkipBytes, 0, 0,
bNativeOrder );
}
else
{
poBand =
new RawRasterBand( poDS, i+1, poDS->fpImage,
nSkipBytes + nBandOffset * i,
nPixelOffset, nLineOffset, eDataType,
#ifdef CPL_LSB
chByteOrder == 'I' || chByteOrder == 'L',
#else
chByteOrder == 'M',
#endif
TRUE );
}
poDS->SetBand( i+1, poBand );
if( bNoDataSet )
((GDALPamRasterBand *) poBand)->SetNoDataValue( dfNoData );
// Set offset/scale values at the PAM level.
poBand->SetOffset(
CPLAtofM(poDS->GetKeyword("IsisCube.Core.Pixels.Base","0.0")));
poBand->SetScale(
CPLAtofM(poDS->GetKeyword("IsisCube.Core.Pixels.Multiplier","1.0")));
}
/* -------------------------------------------------------------------- */
/* Check for a .prj file. For ISIS3 I would like to keep this in */
/* -------------------------------------------------------------------- */
CPLString osPath, osName;
osPath = CPLGetPath( poOpenInfo->pszFilename );
osName = CPLGetBasename(poOpenInfo->pszFilename);
const char *pszPrjFile = CPLFormCIFilename( osPath, osName, "prj" );
fp = VSIFOpenL( pszPrjFile, "r" );
if( fp != NULL )
{
char **papszLines;
OGRSpatialReference oSRS;
VSIFCloseL( fp );
papszLines = CSLLoad( pszPrjFile );
if( oSRS.importFromESRI( papszLines ) == OGRERR_NONE )
{
char *pszResult = NULL;
oSRS.exportToWkt( &pszResult );
poDS->osProjection = pszResult;
CPLFree( pszResult );
}
CSLDestroy( papszLines );
}
if( dfULYMap != 0.5 || dfULYMap != 0.5 || dfXDim != 1.0 || dfYDim != 1.0 )
{
poDS->bGotTransform = TRUE;
poDS->adfGeoTransform[0] = dfULXMap;
poDS->adfGeoTransform[1] = dfXDim;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = dfULYMap;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = dfYDim;
}
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, "cbw",
poDS->adfGeoTransform );
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, "wld",
poDS->adfGeoTransform );
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
return( poDS );
}
GDALDataset *FujiBASDataset::Open( GDALOpenInfo * poOpenInfo )
{
/* -------------------------------------------------------------------- */
/* We assume the user is pointing to the header (.pcb) file. */
/* Does this appear to be a pcb file? */
/* -------------------------------------------------------------------- */
if( poOpenInfo->nHeaderBytes < 80 || poOpenInfo->fpL == NULL )
return NULL;
if( !EQUALN((const char *)poOpenInfo->pabyHeader,"[Raw data]",10)
|| strstr((const char *)poOpenInfo->pabyHeader, "Fuji BAS") == NULL )
return NULL;
/* -------------------------------------------------------------------- */
/* Load the header file. */
/* -------------------------------------------------------------------- */
char **papszHeader;
int nXSize, nYSize;
const char *pszOrgFile;
papszHeader = CSLLoad( poOpenInfo->pszFilename );
if( papszHeader == NULL )
return NULL;
/* -------------------------------------------------------------------- */
/* Munge header information into form suitable for CSL functions. */
/* -------------------------------------------------------------------- */
int i;
for( i = 0; papszHeader[i] != NULL; i++ )
{
char *pszSep = strstr(papszHeader[i]," = ");
if( pszSep != NULL )
{
memmove( pszSep + 1, pszSep + 3, strlen(pszSep+3)+1 );
*pszSep = '=';
}
}
/* -------------------------------------------------------------------- */
/* Fetch required fields. */
/* -------------------------------------------------------------------- */
if( CSLFetchNameValue(papszHeader, "width") == NULL
|| CSLFetchNameValue(papszHeader, "height") == NULL
|| CSLFetchNameValue(papszHeader, "OrgFile") == NULL )
{
CSLDestroy( papszHeader );
return NULL;
}
nYSize = atoi(CSLFetchNameValue(papszHeader,"width"));
nXSize = atoi(CSLFetchNameValue(papszHeader,"height"));
pszOrgFile = CSLFetchNameValue(papszHeader,"OrgFile");
if( nXSize < 1 || nYSize < 1 )
{
CSLDestroy( papszHeader );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLError( CE_Failure, CPLE_NotSupported,
"The FUJIBAS driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Try to open the original data file. */
/* -------------------------------------------------------------------- */
const char *pszRawFile;
char *pszPath = CPLStrdup(CPLGetPath(poOpenInfo->pszFilename));
FILE *fpRaw;
pszRawFile = CPLFormCIFilename( pszPath, pszOrgFile, "IMG" );
CPLFree( pszPath );
fpRaw = VSIFOpen( pszRawFile, "rb" );
if( fpRaw == NULL )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"Trying to open Fuji BAS image with the header file:\n"
" Header=%s\n"
"but expected raw image file doesn't appear to exist. Trying to open:\n"
" Raw File=%s\n"
"Perhaps the raw file needs to be renamed to match expected?",
poOpenInfo->pszFilename,
pszRawFile );
CSLDestroy( papszHeader );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
FujiBASDataset *poDS;
poDS = new FujiBASDataset();
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
poDS->nRasterXSize = nXSize;
poDS->nRasterYSize = nYSize;
poDS->papszHeader = papszHeader;
poDS->fpImage = fpRaw;
/* -------------------------------------------------------------------- */
/* Create band information object. */
/* -------------------------------------------------------------------- */
int bNativeOrder;
#ifdef CPL_MSB
bNativeOrder = TRUE;
#else
bNativeOrder = FALSE;
#endif
poDS->SetBand( 1,
new RawRasterBand( poDS, 1, poDS->fpImage,
0, 2, nXSize * 2, GDT_UInt16, bNativeOrder ));
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
return( poDS );
}
GDALDataset *TSXDataset::Open( GDALOpenInfo *poOpenInfo ) {
/* -------------------------------------------------------------------- */
/* Is this a TerraSAR-X product file? */
/* -------------------------------------------------------------------- */
if (!TSXDataset::Identify( poOpenInfo ))
{
return NULL; /* nope */
}
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLError( CE_Failure, CPLE_NotSupported,
"The TSX driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
CPLString osFilename;
if( poOpenInfo->bIsDirectory )
{
osFilename =
CPLFormCIFilename( poOpenInfo->pszFilename,
CPLGetFilename( poOpenInfo->pszFilename ),
"xml" );
}
else
osFilename = poOpenInfo->pszFilename;
/* Ingest the XML */
CPLXMLNode *psData = CPLParseXMLFile( osFilename );
if (psData == NULL)
return NULL;
/* find the product components */
CPLXMLNode *psComponents
= CPLGetXMLNode( psData, "=level1Product.productComponents" );
if (psComponents == NULL) {
CPLError( CE_Failure, CPLE_OpenFailed,
"Unable to find <productComponents> tag in file.\n" );
CPLDestroyXMLNode(psData);
return NULL;
}
/* find the product info tag */
CPLXMLNode *psProductInfo
= CPLGetXMLNode( psData, "=level1Product.productInfo" );
if (psProductInfo == NULL) {
CPLError( CE_Failure, CPLE_OpenFailed,
"Unable to find <productInfo> tag in file.\n" );
CPLDestroyXMLNode(psData);
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create the dataset. */
/* -------------------------------------------------------------------- */
TSXDataset *poDS = new TSXDataset();
/* -------------------------------------------------------------------- */
/* Read in product info. */
/* -------------------------------------------------------------------- */
poDS->SetMetadataItem( "SCENE_CENTRE_TIME", CPLGetXMLValue( psProductInfo,
"sceneInfo.sceneCenterCoord.azimuthTimeUTC", "unknown" ) );
poDS->SetMetadataItem( "OPERATIONAL_MODE", CPLGetXMLValue( psProductInfo,
"generationInfo.groundOperationsType", "unknown" ) );
poDS->SetMetadataItem( "ORBIT_CYCLE", CPLGetXMLValue( psProductInfo,
"missionInfo.orbitCycle", "unknown" ) );
poDS->SetMetadataItem( "ABSOLUTE_ORBIT", CPLGetXMLValue( psProductInfo,
"missionInfo.absOrbit", "unknown" ) );
poDS->SetMetadataItem( "ORBIT_DIRECTION", CPLGetXMLValue( psProductInfo,
"missionInfo.orbitDirection", "unknown" ) );
poDS->SetMetadataItem( "IMAGING_MODE", CPLGetXMLValue( psProductInfo,
"acquisitionInfo.imagingMode", "unknown" ) );
poDS->SetMetadataItem( "PRODUCT_VARIANT", CPLGetXMLValue( psProductInfo,
"productVariantInfo.productVariant", "unknown" ) );
char *pszDataType = CPLStrdup( CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageDataType", "unknown" ) );
poDS->SetMetadataItem( "IMAGE_TYPE", pszDataType );
/* Get raster information */
int nRows = atoi( CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.numberOfRows", "" ) );
int nCols = atoi( CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.numberOfColumns", "" ) );
poDS->nRasterXSize = nCols;
poDS->nRasterYSize = nRows;
poDS->SetMetadataItem( "ROW_SPACING", CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.rowSpacing", "unknown" ) );
poDS->SetMetadataItem( "COL_SPACING", CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.columnSpacing", "unknown" ) );
poDS->SetMetadataItem( "COL_SPACING_UNITS", CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.columnSpacing.units", "unknown" ) );
/* Get equivalent number of looks */
poDS->SetMetadataItem( "AZIMUTH_LOOKS", CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.azimuthLooks", "unknown" ) );
poDS->SetMetadataItem( "RANGE_LOOKS", CPLGetXMLValue( psProductInfo,
"imageDataInfo.imageRaster.rangeLooks", "unknown" ) );
const char *pszProductVariant = CPLGetXMLValue( psProductInfo,
"productVariantInfo.productVariant", "unknown" );
poDS->SetMetadataItem( "PRODUCT_VARIANT", pszProductVariant );
/* Determine what product variant this is */
if (STARTS_WITH_CI(pszProductVariant, "SSC"))
poDS->nProduct = eSSC;
else if (STARTS_WITH_CI(pszProductVariant, "MGD"))
poDS->nProduct = eMGD;
else if (STARTS_WITH_CI(pszProductVariant, "EEC"))
poDS->nProduct = eEEC;
else if (STARTS_WITH_CI(pszProductVariant, "GEC"))
poDS->nProduct = eGEC;
else
poDS->nProduct = eUnknown;
/* Start reading in the product components */
char *pszGeorefFile = NULL;
CPLErr geoTransformErr=CE_Failure;
for ( CPLXMLNode *psComponent = psComponents->psChild;
psComponent != NULL;
psComponent = psComponent->psNext)
{
const char *pszType = NULL;
const char *pszPath = CPLFormFilename(
CPLGetDirname( osFilename ),
GetFilePath(psComponent, &pszType),
"" );
const char *pszPolLayer = CPLGetXMLValue(psComponent, "polLayer", " ");
if ( !STARTS_WITH_CI(pszType, " ") ) {
if (STARTS_WITH_CI(pszType, "MAPPING_GRID") ) {
/* the mapping grid... save as a metadata item this path */
poDS->SetMetadataItem( "MAPPING_GRID", pszPath );
}
else if (STARTS_WITH_CI(pszType, "GEOREF")) {
/* save the path to the georef data for later use */
CPLFree( pszGeorefFile );
pszGeorefFile = CPLStrdup( pszPath );
}
}
else if( !STARTS_WITH_CI(pszPolLayer, " ") &&
STARTS_WITH_CI(psComponent->pszValue, "imageData") ) {
/* determine the polarization of this band */
ePolarization ePol;
if ( STARTS_WITH_CI(pszPolLayer, "HH") ) {
ePol = HH;
}
else if ( STARTS_WITH_CI(pszPolLayer, "HV") ) {
ePol = HV;
}
else if ( STARTS_WITH_CI(pszPolLayer, "VH") ) {
ePol = VH;
}
else {
ePol = VV;
}
GDALDataType eDataType = STARTS_WITH_CI(pszDataType, "COMPLEX") ?
GDT_CInt16 : GDT_UInt16;
/* try opening the file that represents that band */
GDALDataset *poBandData = reinterpret_cast<GDALDataset *>(
GDALOpen( pszPath, GA_ReadOnly ) );
if ( poBandData != NULL ) {
TSXRasterBand *poBand
= new TSXRasterBand( poDS, eDataType, ePol, poBandData );
poDS->SetBand( poDS->GetRasterCount() + 1, poBand );
//copy georeferencing info from the band
//need error checking??
//it will just save the info from the last band
CPLFree( poDS->pszProjection );
poDS->pszProjection = CPLStrdup(poBandData->GetProjectionRef());
geoTransformErr = poBandData->GetGeoTransform(poDS->adfGeoTransform);
}
}
}
//now check if there is a geotransform
if ( strcmp(poDS->pszProjection, "") && geoTransformErr==CE_None)
{
poDS->bHaveGeoTransform = TRUE;
}
else
{
poDS->bHaveGeoTransform = FALSE;
CPLFree( poDS->pszProjection );
poDS->pszProjection = CPLStrdup("");
poDS->adfGeoTransform[0] = 0.0;
poDS->adfGeoTransform[1] = 1.0;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = 0.0;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = 1.0;
}
CPLFree(pszDataType);
/* -------------------------------------------------------------------- */
/* Check and set matrix representation. */
/* -------------------------------------------------------------------- */
if (poDS->GetRasterCount() == 4) {
poDS->SetMetadataItem( "MATRIX_REPRESENTATION", "SCATTERING" );
}
/* -------------------------------------------------------------------- */
/* Read the four corners and centre GCPs in */
/* -------------------------------------------------------------------- */
CPLXMLNode *psSceneInfo = CPLGetXMLNode( psData,
"=level1Product.productInfo.sceneInfo" );
if (psSceneInfo != NULL)
{
/* extract the GCPs from the provided file */
bool success = false;
if (pszGeorefFile != NULL)
success = poDS->getGCPsFromGEOREF_XML(pszGeorefFile);
//if the gcp's cannot be extracted from the georef file, try to get the corner coordinates
//for now just SSC because the others don't have refColumn and refRow
if (!success && poDS->nProduct == eSSC)
{
int nGCP = 0;
double dfAvgHeight = CPLAtof(CPLGetXMLValue(psSceneInfo,
"sceneAverageHeight", "0.0"));
//count and allocate gcps - there should be five - 4 corners and a centre
poDS->nGCPCount = 0;
CPLXMLNode *psNode = psSceneInfo->psChild;
for ( ; psNode != NULL; psNode = psNode->psNext )
{
if (!EQUAL(psNode->pszValue, "sceneCenterCoord") &&
!EQUAL(psNode->pszValue, "sceneCornerCoord"))
continue;
poDS->nGCPCount++;
}
if (poDS->nGCPCount > 0)
{
poDS->pasGCPList = (GDAL_GCP *)CPLCalloc(sizeof(GDAL_GCP), poDS->nGCPCount);
/* iterate over GCPs */
for (psNode = psSceneInfo->psChild; psNode != NULL; psNode = psNode->psNext )
{
GDAL_GCP *psGCP = poDS->pasGCPList + nGCP;
if (!EQUAL(psNode->pszValue, "sceneCenterCoord") &&
!EQUAL(psNode->pszValue, "sceneCornerCoord"))
continue;
psGCP->dfGCPPixel = CPLAtof(CPLGetXMLValue(psNode, "refColumn",
"0.0"));
psGCP->dfGCPLine = CPLAtof(CPLGetXMLValue(psNode, "refRow", "0.0"));
psGCP->dfGCPX = CPLAtof(CPLGetXMLValue(psNode, "lon", "0.0"));
psGCP->dfGCPY = CPLAtof(CPLGetXMLValue(psNode, "lat", "0.0"));
psGCP->dfGCPZ = dfAvgHeight;
psGCP->pszId = CPLStrdup( CPLSPrintf( "%d", nGCP ) );
psGCP->pszInfo = CPLStrdup("");
nGCP++;
}
//set the projection string - the fields are lat/long - seems to be WGS84 datum
OGRSpatialReference osr;
osr.SetWellKnownGeogCS( "WGS84" );
CPLFree(poDS->pszGCPProjection);
osr.exportToWkt( &(poDS->pszGCPProjection) );
}
}
//gcps override geotransform - does it make sense to have both??
if (poDS->nGCPCount>0)
{
poDS->bHaveGeoTransform = FALSE;
CPLFree( poDS->pszProjection );
poDS->pszProjection = CPLStrdup("");
poDS->adfGeoTransform[0] = 0.0;
poDS->adfGeoTransform[1] = 1.0;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = 0.0;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = 1.0;
}
}
else {
CPLError(CE_Warning, CPLE_AppDefined,
"Unable to find sceneInfo tag in XML document. "
"Proceeding with caution.");
}
CPLFree(pszGeorefFile);
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
CPLDestroyXMLNode(psData);
return poDS;
}
GDALDataset *EIRDataset::Open( GDALOpenInfo * poOpenInfo )
{
int i;
VSILFILE *fp;
const char * pszLine;
if( !Identify( poOpenInfo ) )
return NULL;
fp = VSIFOpenL( poOpenInfo->pszFilename, "r" );
if( fp == NULL )
return NULL;
/* header example and description
IMAGINE_RAW_FILE // must be on first line, by itself
WIDTH 581 // number of columns in the image
HEIGHT 695 // number of rows in the image
NUM_LAYERS 3 // number of spectral bands in the image; default 1
PIXEL_FILES raw8_3n_ui_sanjack.bl // raster file
// default: same name with no extension
FORMAT BIL // BIL BIP BSQ; default BIL
DATATYPE U8 // U1 U2 U4 U8 U16 U32 S16 S32 F32 F64; default U8
BYTE_ORDER // LSB MSB; required for U16 U32 S16 S32 F32 F64
DATA_OFFSET // start of image data in raster file; default 0 bytes
END_RAW_FILE // end RAW file - stop reading
For a true color image with three bands (R, G, B) stored using 8 bits
for each pixel in each band, DATA_TYPE equals U8 and NUM_LAYERS equals
3 for a total of 24 bits per pixel.
Note that the current version of ERDAS Raw Raster Reader/Writer does
not support the LAYER_SKIP_BYTES, RECORD_SKIP_BYTES, TILE_WIDTH and
TILE_HEIGHT directives. Since the reader does not read the PIXEL_FILES
directive, the reader always assumes that the raw binary file is the
dataset, and the name of this file is the name of the header without the
extension. Currently, the reader does not support multiple raw binary
files in one dataset or a single file with both the header and the raw
binary data at the same time.
*/
bool bDone = FALSE;
int nRows = -1, nCols = -1, nBands = 1;
int nSkipBytes = 0;
int nLineCount = 0;
GDALDataType eDataType = GDT_Byte;
int nBits = 8;
char chByteOrder = 'M';
char szLayout[10] = "BIL";
char **papszHDR = NULL;
// default raster file: same name with no extension
CPLString osPath = CPLGetPath( poOpenInfo->pszFilename );
CPLString osName = CPLGetBasename( poOpenInfo->pszFilename );
CPLString osRasterFilename = CPLFormCIFilename( osPath, osName, "" );
// parse the header file
while( !bDone && (pszLine = CPLReadLineL( fp )) != NULL )
{
char **papszTokens;
nLineCount++;
if ( (nLineCount == 1) && !EQUAL(pszLine,"IMAGINE_RAW_FILE") ) {
return NULL;
}
if ( (nLineCount > 50) || EQUAL(pszLine,"END_RAW_FILE") ) {
bDone = TRUE;
break;
}
if( strlen(pszLine) > 1000 )
break;
papszHDR = CSLAddString( papszHDR, pszLine );
papszTokens = CSLTokenizeStringComplex( pszLine, " \t", TRUE, FALSE );
if( CSLCount( papszTokens ) < 2 )
{
CSLDestroy( papszTokens );
continue;
}
if( EQUAL(papszTokens[0],"WIDTH") )
{
nCols = atoi(papszTokens[1]);
}
else if( EQUAL(papszTokens[0],"HEIGHT") )
{
nRows = atoi(papszTokens[1]);
}
else if( EQUAL(papszTokens[0],"NUM_LAYERS") )
{
nBands = atoi(papszTokens[1]);
}
else if( EQUAL(papszTokens[0],"PIXEL_FILES") )
{
osRasterFilename = CPLFormCIFilename( osPath, papszTokens[1], "" );
}
else if( EQUAL(papszTokens[0],"FORMAT") )
{
strncpy( szLayout, papszTokens[1], sizeof(szLayout) );
szLayout[sizeof(szLayout)-1] = '\0';
}
else if( EQUAL(papszTokens[0],"DATATYPE") )
{
if ( EQUAL(papszTokens[1], "U1")
|| EQUAL(papszTokens[1], "U2")
|| EQUAL(papszTokens[1], "U4")
|| EQUAL(papszTokens[1], "U8") ) {
nBits = 8;
eDataType = GDT_Byte;
}
else if( EQUAL(papszTokens[1], "U16") ) {
nBits = 16;
eDataType = GDT_UInt16;
}
else if( EQUAL(papszTokens[1], "U32") ) {
nBits = 32;
eDataType = GDT_UInt32;
}
else if( EQUAL(papszTokens[1], "S16") ) {
nBits = 16;
eDataType = GDT_Int16;
}
else if( EQUAL(papszTokens[1], "S32") ) {
nBits = 32;
eDataType = GDT_Int32;
}
else if( EQUAL(papszTokens[1], "F32") ) {
nBits = 32;
eDataType = GDT_Float32;
}
else if( EQUAL(papszTokens[1], "F64") ) {
nBits = 64;
eDataType = GDT_Float64;
}
else {
CPLError( CE_Failure, CPLE_NotSupported,
"EIR driver does not support DATATYPE %s.",
papszTokens[1] );
CSLDestroy( papszTokens );
CSLDestroy( papszHDR );
VSIFCloseL( fp );
return NULL;
}
}
else if( EQUAL(papszTokens[0],"BYTE_ORDER") )
{
// M for MSB, L for LSB
chByteOrder = toupper(papszTokens[1][0]);
}
else if( EQUAL(papszTokens[0],"DATA_OFFSET") )
{
nSkipBytes = atoi(papszTokens[1]); // TBD: is this mapping right?
}
CSLDestroy( papszTokens );
}
VSIFCloseL( fp );
/* -------------------------------------------------------------------- */
/* Did we get the required keywords? If not we return with */
/* this never having been considered to be a match. This isn't */
/* an error! */
/* -------------------------------------------------------------------- */
if( nRows == -1 || nCols == -1 )
{
CSLDestroy( papszHDR );
return NULL;
}
if (!GDALCheckDatasetDimensions(nCols, nRows) ||
!GDALCheckBandCount(nBands, FALSE))
{
CSLDestroy( papszHDR );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CSLDestroy( papszHDR );
CPLError( CE_Failure, CPLE_NotSupported,
"The EIR driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
EIRDataset *poDS;
poDS = new EIRDataset();
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
poDS->nRasterXSize = nCols;
poDS->nRasterYSize = nRows;
poDS->papszHDR = papszHDR;
/* -------------------------------------------------------------------- */
/* Open target binary file. */
/* -------------------------------------------------------------------- */
poDS->fpImage = VSIFOpenL( osRasterFilename.c_str(), "rb" );
if( poDS->fpImage == NULL )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"Failed to open %s.\n%s",
osRasterFilename.c_str(), VSIStrerror( errno ) );
delete poDS;
return NULL;
}
poDS->papszExtraFiles =
CSLAddString( poDS->papszExtraFiles,
osRasterFilename );
poDS->eAccess = poOpenInfo->eAccess;
/* -------------------------------------------------------------------- */
/* Compute the line offset. */
/* -------------------------------------------------------------------- */
int nItemSize = GDALGetDataTypeSize(eDataType)/8;
int nPixelOffset, nLineOffset;
vsi_l_offset nBandOffset;
if( EQUAL(szLayout,"BIP") )
{
nPixelOffset = nItemSize * nBands;
nLineOffset = nPixelOffset * nCols;
nBandOffset = (vsi_l_offset)nItemSize;
}
else if( EQUAL(szLayout,"BSQ") )
{
nPixelOffset = nItemSize;
nLineOffset = nPixelOffset * nCols;
nBandOffset = (vsi_l_offset)nLineOffset * nRows;
}
else /* assume BIL */
{
nPixelOffset = nItemSize;
nLineOffset = nItemSize * nBands * nCols;
nBandOffset = (vsi_l_offset)nItemSize * nCols;
}
poDS->SetDescription( poOpenInfo->pszFilename );
poDS->PamInitialize();
/* -------------------------------------------------------------------- */
/* Create band information objects. */
/* -------------------------------------------------------------------- */
poDS->nBands = nBands;
for( i = 0; i < poDS->nBands; i++ )
{
RawRasterBand *poBand;
poBand =
new RawRasterBand( poDS, i+1, poDS->fpImage,
nSkipBytes + nBandOffset * i,
nPixelOffset, nLineOffset, eDataType,
#ifdef CPL_LSB
chByteOrder == 'I' || chByteOrder == 'L',
#else
chByteOrder == 'M',
#endif
nBits);
poDS->SetBand( i+1, poBand );
}
/* -------------------------------------------------------------------- */
/* look for a worldfile */
/* -------------------------------------------------------------------- */
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, 0,
poDS->adfGeoTransform );
if( !poDS->bGotTransform )
poDS->bGotTransform =
GDALReadWorldFile( poOpenInfo->pszFilename, "wld",
poDS->adfGeoTransform );
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
poDS->TryLoadXML();
/* -------------------------------------------------------------------- */
/* Check for overviews. */
/* -------------------------------------------------------------------- */
poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );
return( poDS );
}
