int GRASS_LIB_EXPORT QgsGrassGisLib::G__gisinit( const char * version, const char * programName )
{
Q_UNUSED( version );
// We use this function also to init our fake lib
QgsDebugMsg( QString( "version = %1 programName = %2" ).arg( version ).arg( programName ) );
// Init providers path
int argc = 1;
char **argv = new char*[1];
argv[0] = qstrdup( programName );
// unfortunately it seems impossible to get QGIS prefix
// QCoreApplication::applicationDirPath() returns $GISBASE/lib on Linux
#if 0
QDir dir( QCoreApplication::applicationDirPath() );
dir.cdUp();
QString prefixPath = dir.absolutePath();
#endif
//QCoreApplication app( argc, argv ); // to init paths
QgsApplication app( argc, argv, false ); // to init paths
// TODO: WCS (network) fails with: "QTimer can only be used with threads started
// with QThread" because QCoreApplication::exec() was not called, but
// QCoreApplication::exec() goes to loop. We need to start QThread somehow.
// QGIS_PREFIX_PATH should be loaded by QgsApplication
//QString prefixPath = getenv( "QGIS_PREFIX_PATH" );
//if ( prefixPath.isEmpty() )
//{
// fatal( "Cannot get QGIS_PREFIX_PATH" );
//}
//QgsApplication::setPrefixPath( prefixPath, true );
QgsDebugMsg( "Plugin path: " + QgsApplication::pluginPath() );
QgsProviderRegistry::instance( QgsApplication::pluginPath() );
QgsDebugMsg( "qgisSettingsDirPath = " + app.qgisSettingsDirPath() );
G_set_error_routine( &errorRoutine );
G_set_gisrc_mode( G_GISRC_MODE_MEMORY );
G_setenv( "OVERWRITE", "1" ); // avoid checking if map exists
G_suppress_masking();
#if GRASS_VERSION_MAJOR<6 || (GRASS_VERSION_MAJOR == 6 && GRASS_VERSION_MINOR <= 4)
G__init_null_patterns();
#endif
// Read projection if set
//mCrs.createFromOgcWmsCrs( "EPSG:900913" );
QString crsStr = getenv( "QGIS_GRASS_CRS" );
QgsDebugMsg( "Setting CRS to " + crsStr );
if ( !crsStr.isEmpty() )
{
if ( !mCrs.createFromProj4( crsStr ) )
{
fatal( "Cannot create CRS from QGIS_GRASS_CRS: " + crsStr );
}
//TODO: createFromProj4 used to save to the user database any new CRS
// this behavior was changed in order to separate creation and saving.
// Not sure if it necessary to save it here, should be checked by someone
// familiar with the code (should also give a more descriptive name to the generated CRS)
if ( mCrs.srsid() == 0 )
{
QString myName = QString( " * %1 (%2)" )
.arg( QObject::tr( "Generated CRS", "A CRS automatically generated from layer info get this prefix for description" ) )
.arg( mCrs.toProj4() );
mCrs.saveAsUserCRS( myName );
}
}
mDistanceArea.setSourceCrs( mCrs.srsid() );
// Read region fron environment variable
// QGIS_GRASS_REGION=west,south,east,north,cols,rows
#if 0
QString regionStr = getenv( "QGIS_GRASS_REGION" );
QStringList regionList = regionStr.split( "," );
if ( regionList.size() != 6 )
{
fatal( "Cannot read region from QGIS_GRASS_REGION environment variable" );
}
double xMin, yMin, xMax, yMax;
int cols, rows;
bool xMinOk, yMinOk, xMaxOk, yMaxOk, colsOk, rowsOk;
xMin = regionList.value( 0 ).toDouble( &xMinOk );
yMin = regionList.value( 1 ).toDouble( &yMinOk );
xMax = regionList.value( 2 ).toDouble( &xMaxOk );
yMax = regionList.value( 3 ).toDouble( &yMaxOk );
cols = regionList.value( 4 ).toInt( &colsOk );
rows = regionList.value( 5 ).toInt( &rowsOk );
if ( !xMinOk || !yMinOk || !xMaxOk || !yMaxOk || !colsOk || !rowsOk )
{
fatal( "Cannot parse QGIS_GRASS_REGION" );
}
struct Cell_head window;
window.west = xMin;
window.south = yMin;
window.east = xMax;
window.north = yMax;
window.rows = rows;
window.cols = cols;
char* err = G_adjust_Cell_head( &window, 1, 1 );
if ( err )
{
fatal( QString( err ) );
}
G_set_window( &window );
#endif
QString regionStr = getenv( "GRASS_REGION" );
if ( regionStr.isEmpty() )
{
fatal( "GRASS_REGION environment variable not set" );
}
QgsDebugMsg( "Getting region via true lib from GRASS_REGION: " + regionStr );
// GRASS true lib reads GRASS_REGION environment variable
G_get_window( &mWindow );
mExtent = QgsRectangle( mWindow.west, mWindow.south, mWindow.east, mWindow.north );
mRows = mWindow.rows;
mColumns = mWindow.cols;
mXRes = mExtent.width() / mColumns;
mYRes = mExtent.height() / mColumns;
QgsDebugMsg( "End" );
return 0;
}
GDALDataset *GRASSDataset::Open( GDALOpenInfo * poOpenInfo )
{
char *pszGisdb = NULL, *pszLoc = NULL;
char *pszMapset = NULL, *pszElem = NULL, *pszName = NULL;
char **papszCells = NULL;
char **papszMapsets = NULL;
/* -------------------------------------------------------------------- */
/* Does this even look like a grass file path? */
/* -------------------------------------------------------------------- */
if( strstr(poOpenInfo->pszFilename,"/cellhd/") == NULL
&& strstr(poOpenInfo->pszFilename,"/group/") == NULL )
return NULL;
/* Always init, if no rasters are opened G_no_gisinit resets the projection and
* rasters in different projection may be then opened */
// Don't use GISRC file and read/write GRASS variables (from location G_VAR_GISRC) to memory only.
G_set_gisrc_mode ( G_GISRC_MODE_MEMORY );
// Init GRASS libraries (required)
G_no_gisinit(); // Doesn't check write permissions for mapset compare to G_gisinit
// Set error function
G_set_error_routine ( (GrassErrorHandler) Grass2CPLErrorHook );
// GISBASE is path to the directory where GRASS is installed,
if ( !getenv( "GISBASE" ) ) {
static char* gisbaseEnv = NULL;
const char *gisbase = GRASS_GISBASE;
CPLError( CE_Warning, CPLE_AppDefined, "GRASS warning: GISBASE "
"enviroment variable was not set, using:\n%s", gisbase );
char buf[2000];
snprintf ( buf, sizeof(buf), "GISBASE=%s", gisbase );
buf[sizeof(buf)-1] = '\0';
CPLFree(gisbaseEnv);
gisbaseEnv = CPLStrdup ( buf );
putenv( gisbaseEnv );
}
if ( !SplitPath( poOpenInfo->pszFilename, &pszGisdb, &pszLoc, &pszMapset,
&pszElem, &pszName) ) {
return NULL;
}
/* -------------------------------------------------------------------- */
/* Check element name */
/* -------------------------------------------------------------------- */
if ( strcmp(pszElem,"cellhd") != 0 && strcmp(pszElem,"group") != 0 ) {
G_free(pszGisdb);
G_free(pszLoc);
G_free(pszMapset);
G_free(pszElem);
G_free(pszName);
return NULL;
}
/* -------------------------------------------------------------------- */
/* Set GRASS variables */
/* -------------------------------------------------------------------- */
G__setenv( "GISDBASE", pszGisdb );
G__setenv( "LOCATION_NAME", pszLoc );
G__setenv( "MAPSET", pszMapset); // group is searched only in current mapset
G_reset_mapsets();
G_add_mapset_to_search_path ( pszMapset );
/* -------------------------------------------------------------------- */
/* Check if this is a valid grass cell. */
/* -------------------------------------------------------------------- */
if ( strcmp(pszElem,"cellhd") == 0 ) {
if ( G_find_file2("cell", pszName, pszMapset) == NULL ) {
G_free(pszGisdb); G_free(pszLoc); G_free(pszMapset); G_free(pszElem); G_free(pszName);
return NULL;
}
papszMapsets = CSLAddString( papszMapsets, pszMapset );
papszCells = CSLAddString( papszCells, pszName );
}
/* -------------------------------------------------------------------- */
/* Check if this is a valid GRASS imagery group. */
/* -------------------------------------------------------------------- */
else {
struct Ref ref;
I_init_group_ref( &ref );
if ( I_get_group_ref( pszName, &ref ) == 0 ) {
G_free(pszGisdb); G_free(pszLoc); G_free(pszMapset); G_free(pszElem); G_free(pszName);
return NULL;
}
for( int iRef = 0; iRef < ref.nfiles; iRef++ )
{
papszCells = CSLAddString( papszCells, ref.file[iRef].name );
papszMapsets = CSLAddString( papszMapsets, ref.file[iRef].mapset );
G_add_mapset_to_search_path ( ref.file[iRef].mapset );
}
I_free_group_ref( &ref );
}
G_free( pszMapset );
G_free( pszName );
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
GRASSDataset *poDS;
poDS = new GRASSDataset();
/* notdef: should only allow read access to an existing cell, right? */
poDS->eAccess = poOpenInfo->eAccess;
poDS->pszGisdbase = pszGisdb;
poDS->pszLocation = pszLoc;
poDS->pszElement = pszElem;
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
#if GRASS_VERSION_MAJOR >= 7
Rast_get_cellhd( papszCells[0], papszMapsets[0], &(poDS->sCellInfo) );
#else
if( G_get_cellhd( papszCells[0], papszMapsets[0], &(poDS->sCellInfo) ) != 0 ) {
CPLError( CE_Warning, CPLE_AppDefined, "GRASS: Cannot open raster header");
delete poDS;
return NULL;
}
#endif
poDS->nRasterXSize = poDS->sCellInfo.cols;
poDS->nRasterYSize = poDS->sCellInfo.rows;
poDS->adfGeoTransform[0] = poDS->sCellInfo.west;
poDS->adfGeoTransform[1] = poDS->sCellInfo.ew_res;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = poDS->sCellInfo.north;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = -1 * poDS->sCellInfo.ns_res;
/* -------------------------------------------------------------------- */
/* Try to get a projection definition. */
/* -------------------------------------------------------------------- */
struct Key_Value *projinfo, *projunits;
projinfo = G_get_projinfo();
projunits = G_get_projunits();
poDS->pszProjection = GPJ_grass_to_wkt ( projinfo, projunits, 0, 0);
if (projinfo) G_free_key_value(projinfo);
if (projunits) G_free_key_value(projunits);
/* -------------------------------------------------------------------- */
/* Create band information objects. */
/* -------------------------------------------------------------------- */
for( int iBand = 0; papszCells[iBand] != NULL; iBand++ )
{
GRASSRasterBand *rb = new GRASSRasterBand( poDS, iBand+1, papszMapsets[iBand],
papszCells[iBand] );
if ( !rb->valid ) {
CPLError( CE_Warning, CPLE_AppDefined, "GRASS: Cannot open raster band %d", iBand);
delete rb;
delete poDS;
return NULL;
}
poDS->SetBand( iBand+1, rb );
}
CSLDestroy(papszCells);
CSLDestroy(papszMapsets);
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
delete poDS;
CPLError( CE_Failure, CPLE_NotSupported,
"The GRASS driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
return poDS;
}
int OGRGRASSDataSource::Open( const char * pszNewName, int /*bUpdate*/,
int bTestOpen, int /*bSingleNewFileIn*/ )
{
VSIStatBuf stat;
CPLAssert( nLayers == 0 );
pszName = CPLStrdup( pszNewName ); // Released by destructor
/* -------------------------------------------------------------------- */
/* Do the given path contains 'vector' and 'head'? */
/* -------------------------------------------------------------------- */
if ( strstr(pszName,"vector") == NULL || strstr(pszName,"head") == NULL )
{
if( !bTestOpen )
{
CPLError( CE_Failure, CPLE_AppDefined,
"%s is not GRASS vector, access failed.\n", pszName );
}
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Is the given a regular file? */
/* -------------------------------------------------------------------- */
if( CPLStat( pszName, &stat ) != 0 || !VSI_ISREG(stat.st_mode) )
{
if( !bTestOpen )
{
CPLError( CE_Failure, CPLE_AppDefined,
"%s is not GRASS vector, access failed.\n", pszName );
}
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Parse datasource name */
/* -------------------------------------------------------------------- */
if ( !SplitPath(pszName, &pszGisdbase, &pszLocation,
&pszMapset, &pszMap) )
{
if( !bTestOpen )
{
CPLError( CE_Failure, CPLE_AppDefined,
"%s is not GRASS datasource name, access failed.\n",
pszName );
}
return FALSE;
}
CPLDebug ( "GRASS", "Gisdbase: %s", pszGisdbase );
CPLDebug ( "GRASS", "Location: %s", pszLocation );
CPLDebug ( "GRASS", "Mapset: %s", pszMapset );
CPLDebug ( "GRASS", "Map: %s", pszMap );
/* -------------------------------------------------------------------- */
/* Init GRASS library */
/* -------------------------------------------------------------------- */
// GISBASE is path to the directory where GRASS is installed,
// it is necessary because there are database drivers.
if ( !getenv( "GISBASE" ) ) {
static char* gisbaseEnv = NULL;
const char *gisbase = GRASS_GISBASE;
CPLError( CE_Warning, CPLE_AppDefined, "GRASS warning: GISBASE "
"environment variable was not set, using:\n%s", gisbase );
char buf[2000];
snprintf ( buf, sizeof(buf), "GISBASE=%s", gisbase );
buf[sizeof(buf)-1] = '\0';
CPLFree(gisbaseEnv);
gisbaseEnv = CPLStrdup ( buf );
putenv( gisbaseEnv );
}
// Don't use GISRC file and read/write GRASS variables
// (from location G_VAR_GISRC) to memory only.
G_set_gisrc_mode ( G_GISRC_MODE_MEMORY );
// Init GRASS libraries (required). G_no_gisinit() doesn't check
// write permissions for mapset compare to G_gisinit()
G_no_gisinit();
// Set error function
G_set_error_routine ( (GrassErrorHandler) Grass2OGRErrorHook );
/* -------------------------------------------------------------------- */
/* Set GRASS variables */
/* -------------------------------------------------------------------- */
G__setenv( "GISDBASE", pszGisdbase );
G__setenv( "LOCATION_NAME", pszLocation );
G__setenv( "MAPSET", pszMapset);
G_reset_mapsets();
G_add_mapset_to_search_path ( pszMapset );
/* -------------------------------------------------------------------- */
/* Open GRASS vector map */
/* -------------------------------------------------------------------- */
#if GRASS_VERSION_MAJOR < 7
Vect_set_fatal_error ( GV_FATAL_PRINT ); // Print error and continue
#endif
Vect_set_open_level (2);
int level = Vect_open_old ( &map, pszMap, pszMapset);
if ( level < 2 ) {
CPLError( CE_Failure, CPLE_AppDefined,
"Cannot open GRASS vector %s on level 2.\n", pszName );
return FALSE;
}
CPLDebug ( "GRASS", "Num lines = %d", Vect_get_num_lines(&map) );
/* -------------------------------------------------------------------- */
/* Build a list of layers. */
/* -------------------------------------------------------------------- */
int ncidx = Vect_cidx_get_num_fields ( &map );
CPLDebug ( "GRASS", "Num layers = %d", ncidx );
for ( int i = 0; i < ncidx; i++ ) {
// Create the layer object
OGRGRASSLayer *poLayer = new OGRGRASSLayer( i, &map );
// Add layer to data source layer list
papoLayers = (OGRGRASSLayer **)
CPLRealloc( papoLayers, sizeof(OGRGRASSLayer *) * (nLayers+1) );
papoLayers[nLayers++] = poLayer;
}
bOpened = TRUE;
return TRUE;
}
void GRASS_EXPORT QgsGrass::init( void )
{
// Warning!!!
// G_set_error_routine() once called from plugin
// is not valid in provider -> call it always
// Set error function
G_set_error_routine( &error_routine );
if ( initialized )
return;
QSettings settings;
// Is it active mode ?
if ( getenv( "GISRC" ) )
{
active = true;
// Store default values
defaultGisdbase = G_gisdbase();
defaultLocation = G_location();
defaultMapset = G_mapset();
}
else
{
active = false;
}
// Don't use GISRC file and read/write GRASS variables (from location G_VAR_GISRC) to memory only.
G_set_gisrc_mode( G_GISRC_MODE_MEMORY );
// Init GRASS libraries (required)
G_no_gisinit(); // Doesn't check write permissions for mapset compare to G_gisinit("libgrass++");
// I think that mask should not be used in QGIS as it can only confuses people,
// anyway, I don't think anybody is using MASK
G_suppress_masking();
// Set program name
G_set_program_name( "QGIS" );
// Require GISBASE to be set. This should point to the location of
// the GRASS installation. The GRASS libraries use it to know
// where to look for things.
// Look first to see if GISBASE env var is already set.
// This is set when QGIS is run from within GRASS
// or when set explicitly by the user.
// This value should always take precedence.
#if WIN32
QString gisBase = getenv( "WINGISBASE" ) ? getenv( "WINGISBASE" ) : getenv( "GISBASE" );
gisBase = shortPath( gisBase );
#else
QString gisBase = getenv( "GISBASE" );
#endif
QgsDebugMsg( QString( "GRASS gisBase from GISBASE env var is: %1" ).arg( gisBase ) );
if ( !isValidGrassBaseDir( gisBase ) )
{
// Look for gisbase in QSettings
gisBase = settings.value( "/GRASS/gisbase", "" ).toString();
QgsDebugMsg( QString( "GRASS gisBase from QSettings is: %1" ).arg( gisBase ) );
}
if ( !isValidGrassBaseDir( gisBase ) )
{
// Erase gisbase from settings because it does not exists
settings.setValue( "/GRASS/gisbase", "" );
#ifdef WIN32
// Use the applicationDirPath()/grass
gisBase = shortPath( QCoreApplication::applicationDirPath() + "/grass" );
QgsDebugMsg( QString( "GRASS gisBase = %1" ).arg( gisBase ) );
#else
// Use the location specified --with-grass during configure
gisBase = GRASS_BASE;
QgsDebugMsg( QString( "GRASS gisBase from configure is: %1" ).arg( gisBase ) );
#endif
}
bool userGisbase = false;
bool valid = false;
while ( !( valid = isValidGrassBaseDir( gisBase ) ) )
{
// ask user if he wants to specify GISBASE
QMessageBox::StandardButton res = QMessageBox::warning( 0, QObject::tr( "GRASS plugin" ),
QObject::tr( "QGIS couldn't find your GRASS installation.\n"
"Would you like to specify path (GISBASE) to your GRASS installation?" ),
QMessageBox::Ok | QMessageBox::Cancel );
if ( res != QMessageBox::Ok )
{
userGisbase = false;
break;
}
// XXX Need to subclass this and add explantory message above to left side
userGisbase = true;
// For Mac, GISBASE folder may be inside GRASS bundle. Use Qt file dialog
// since Mac native dialog doesn't allow user to browse inside bundles.
gisBase = QFileDialog::getExistingDirectory(
0, QObject::tr( "Choose GRASS installation path (GISBASE)" ), gisBase,
QFileDialog::DontUseNativeDialog );
if ( gisBase == QString::null )
{
// User pressed cancel. No GRASS for you!
userGisbase = false;
break;
}
#if defined(WIN32)
gisBase = shortPath( gisBase );
#endif
}
if ( !valid )
{
// warn user
QMessageBox::information( 0, QObject::tr( "GRASS plugin" ),
QObject::tr( "GRASS data won't be available if GISBASE is not specified." ) );
}
if ( userGisbase )
{
settings.setValue( "/GRASS/gisbase", gisBase );
}
QgsDebugMsg( QString( "Valid GRASS gisBase is: %1" ).arg( gisBase ) );
putEnv( "GISBASE", gisBase );
// Add path to GRASS modules
#ifdef WIN32
QString sep = ";";
#else
QString sep = ":";
#endif
QString path = gisBase + "/bin";
path.append( sep + gisBase + "/scripts" );
path.append( sep + QgsApplication::pkgDataPath() + "/grass/scripts/" );
// On windows the GRASS libraries are in
// QgsApplication::prefixPath(), we have to add them
// to PATH to enable running of GRASS modules
// and database drivers
#ifdef WIN32
// It seems that QgsApplication::prefixPath()
// is not initialized at this point
path.append( sep + shortPath( QCoreApplication::applicationDirPath() ) );
// Add path to MSYS bin
// Warning: MSYS sh.exe will translate this path to '/bin'
if ( QFileInfo( QCoreApplication::applicationDirPath() + "/msys/bin/" ).isDir() )
path.append( sep + shortPath( QCoreApplication::applicationDirPath() + "/msys/bin/" ) );
#endif
QString p = getenv( "PATH" );
path.append( sep + p );
QgsDebugMsg( QString( "set PATH: %1" ).arg( path ) );
putEnv( "PATH", path );
// Set PYTHONPATH
QString pythonpath = gisBase + "/etc/python";
QString pp = getenv( "PYTHONPATH" );
pythonpath.append( sep + pp );
QgsDebugMsg( QString( "set PYTHONPATH: %1" ).arg( pythonpath ) );
putEnv( "PYTHONPATH", pythonpath );
// Set GRASS_PAGER if not set, it is necessary for some
// modules printing to terminal, e.g. g.list
// We use 'cat' because 'more' is not present in MSYS (Win)
// and it doesn't work well in built in shell (Unix/Mac)
// and 'less' is not user friendly (for example user must press
// 'q' to quit which is definitely difficult for normal user)
// Also scroling can be don in scrollable window in both
// MSYS terminal and built in shell.
if ( !getenv( "GRASS_PAGER" ) )
{
QString pager;
QStringList pagers;
//pagers << "more" << "less" << "cat"; // se notes above
pagers << "cat";
for ( int i = 0; i < pagers.size(); i++ )
{
int state;
QProcess p;
p.start( pagers.at( i ) );
p.waitForStarted();
state = p.state();
p.write( "\004" ); // Ctrl-D
p.closeWriteChannel();
p.waitForFinished( 1000 );
p.kill();
if ( state == QProcess::Running )
{
pager = pagers.at( i );
break;
}
}
if ( pager.length() > 0 )
{
putEnv( "GRASS_PAGER", pager );
}
}
initialized = 1;
}
GDALDataset *GRASSDataset::Open( GDALOpenInfo * poOpenInfo )
{
static int bDoneGISInit = FALSE;
char *pszMapset = NULL, *pszCell = NULL;
char **papszCells = NULL;
char **papszMapsets = NULL;
if( !bDoneGISInit )
{
G_set_error_routine( (GrassErrorHandler) Grass2CPLErrorHook );
G_gisinit_2( "GDAL", NULL, NULL, NULL );
}
/* -------------------------------------------------------------------- */
/* Check if this is a valid grass cell. */
/* -------------------------------------------------------------------- */
if( G_check_cell( poOpenInfo->pszFilename, &pszMapset, &pszCell ) )
{
papszCells = CSLAddString( papszCells, pszCell );
papszMapsets = CSLAddString( papszMapsets, pszMapset );
G_free( pszMapset );
G_free( pszCell );
}
/* -------------------------------------------------------------------- */
/* Check if this is a valid GRASS imagery group. */
/* -------------------------------------------------------------------- */
else if( I_check_group( poOpenInfo->pszFilename, &pszMapset, &pszCell ) )
{
struct Ref ref;
I_init_group_ref( &ref );
I_get_group_ref( pszCell, &ref );
for( int iRef = 0; iRef < ref.nfiles; iRef++ )
{
papszCells = CSLAddString( papszCells, ref.file[iRef].name );
papszMapsets = CSLAddString( papszMapsets, ref.file[iRef].mapset );
}
I_free_group_ref( &ref );
G_free( pszMapset );
G_free( pszCell );
}
else
return NULL;
/* -------------------------------------------------------------------- */
/* Create a corresponding GDALDataset. */
/* -------------------------------------------------------------------- */
GRASSDataset *poDS;
poDS = new GRASSDataset();
/* notdef: should only allow read access to an existing cell, right? */
poDS->eAccess = poOpenInfo->eAccess;
/* -------------------------------------------------------------------- */
/* Capture some information from the file that is of interest. */
/* -------------------------------------------------------------------- */
struct Cell_head sCellInfo;
if( G_get_cellhd( papszCells[0], papszMapsets[0], &sCellInfo ) != 0 )
{
/* notdef: report failure. */
return NULL;
}
poDS->nRasterXSize = sCellInfo.cols;
poDS->nRasterYSize = sCellInfo.rows;
G_set_window( &sCellInfo );
poDS->adfGeoTransform[0] = sCellInfo.west;
poDS->adfGeoTransform[1] = sCellInfo.ew_res;
poDS->adfGeoTransform[2] = 0.0;
poDS->adfGeoTransform[3] = sCellInfo.north;
poDS->adfGeoTransform[4] = 0.0;
poDS->adfGeoTransform[5] = -1 * sCellInfo.ns_res;
/* -------------------------------------------------------------------- */
/* Try to get a projection definition. */
/* -------------------------------------------------------------------- */
char *pszProj4;
pszProj4 = G_get_cell_as_proj4( papszCells[0], papszMapsets[0] );
if( pszProj4 != NULL )
{
OGRSpatialReference oSRS;
if( oSRS.importFromProj4( pszProj4 ) == OGRERR_NONE )
{
oSRS.exportToWkt( &(poDS->pszProjection) );
}
G_free( pszProj4 );
}
/* -------------------------------------------------------------------- */
/* Create band information objects. */
/* -------------------------------------------------------------------- */
for( int iBand = 0; papszCells[iBand] != NULL; iBand++ )
{
poDS->SetBand( iBand+1,
new GRASSRasterBand( poDS, iBand+1,
papszMapsets[iBand],
papszCells[iBand] ) );
}
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
delete poDS;
CPLError( CE_Failure, CPLE_NotSupported,
"The GRASS driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
return poDS;
}
int main(int argc, char *argv[])
{
char name[GNAME_MAX], mapset[GMAPSET_MAX], xmapset[GMAPSET_MAX];
struct Cell_head cellhd;
struct GModule *module;
struct Option *grp;
/* must run in a term window */
G_putenv("GRASS_UI_TERM", "1");
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("imagery"));
G_add_keyword(_("geometry"));
module->description =
_("Mark ground control points on image to be rectified.");
grp = G_define_option();
grp->key = "group";
grp->type = TYPE_STRING;
grp->required = YES;
grp->gisprompt = "old,group,group";
grp->description = _("Name of imagery group to be registered");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
Rast_suppress_masking(); /* need to do this for target location */
interrupt_char = G_intr_char();
tempfile1 = G_tempfile();
tempfile2 = G_tempfile();
cell_list = G_tempfile();
vect_list = G_tempfile();
group_list = G_tempfile();
digit_points = G_tempfile();
digit_results = G_tempfile();
if (R_open_driver() != 0)
G_fatal_error(_("No graphics device selected"));
/* parse group name */
/* only enforce local-mapset-only due to I_get_group_ref() not liking "@mapset" */
if (G_name_is_fully_qualified(grp->answer, group.name, xmapset)) {
if (0 != strcmp(G_mapset(), xmapset))
G_fatal_error(_("[%s] Only local groups may be used"),
grp->answer);
}
else {
strncpy(group.name, grp->answer, GNAME_MAX - 1);
group.name[GNAME_MAX - 1] = '\0'; /* strncpy() doesn't null terminate on overflow */
}
if (!I_get_group_ref(group.name, &group.ref))
G_fatal_error(_("Group [%s] contains no maps, run i.group"),
group.name);
if (group.ref.nfiles <= 0)
G_fatal_error(_("Group [%s] contains no maps, run i.group"),
group.name);
/* write group files to group list file */
prepare_group_list();
/* get target info and environment */
get_target();
find_target_files();
/* read group control points, if any */
G_suppress_warnings(1);
if (!I_get_control_points(group.name, &group.points))
group.points.count = 0;
G_suppress_warnings(0);
/* determine transformation equation */
Compute_equation();
signal(SIGINT, SIG_IGN);
/* signal (SIGQUIT, SIG_IGN); */
Init_graphics();
display_title(VIEW_MAP1);
select_target_env();
display_title(VIEW_MAP2);
select_current_env();
Begin_curses();
G_set_error_routine(error);
/*
#ifdef SIGTSTP
signal (SIGTSTP, SIG_IGN);
#endif
*/
/* ask user for group file to be displayed */
do {
if (!choose_groupfile(name, mapset))
quit(0);
/* display this file in "map1" */
}
while (!G_find_raster2(name, mapset));
Rast_get_cellhd(name, mapset, &cellhd);
G_adjust_window_to_box(&cellhd, &VIEW_MAP1->cell.head, VIEW_MAP1->nrows,
VIEW_MAP1->ncols);
Configure_view(VIEW_MAP1, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP1);
display_points(1);
Curses_clear_window(PROMPT_WINDOW);
/* determine initial input method. */
setup_digitizer();
if (use_digitizer) {
from_digitizer = 1;
from_keyboard = 0;
from_flag = 1;
}
/* go do the work */
driver();
quit(0);
}
int main(int argc, char *argv[])
{
char mapset[GMAPSET_MAX];
char name[GNAME_MAX];
char *camera;
struct GModule *module;
struct Option *group_opt, *map_opt, *target_map_opt;
struct Cell_head cellhd;
int ok;
int nfiles;
/* must run in a term window */
G_putenv("GRASS_UI_TERM", "1");
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("imagery, orthorectify");
module->description = _("Creates control points on an image "
"to be ortho-rectified.");
group_opt = G_define_option();
group_opt->key = "group";
group_opt->type = TYPE_STRING;
group_opt->required = YES;
group_opt->multiple = NO;
group_opt->description = _("Name of imagery group");
map_opt = G_define_standard_option(G_OPT_R_MAP);
map_opt->required = NO;
map_opt->description = _("Name of image to be rectified which will "
"be initially drawn on screen");
target_map_opt = G_define_standard_option(G_OPT_R_MAP);
target_map_opt->key = "target";
target_map_opt->required = NO;
target_map_opt->description = _("Name of a map from target mapset which "
"will be initially drawn on screen");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
G_suppress_masking(); /* need to do this for target location */
camera = (char *)G_malloc(40 * sizeof(char));
strcpy(name, group_opt->answer);
interrupt_char = G_intr_char();
tempfile1 = G_tempfile();
tempfile2 = G_tempfile();
tempfile_dot = G_tempfile();
tempfile_dot2 = G_tempfile();
tempfile_win = G_tempfile();
tempfile_win2 = G_tempfile();
cell_list = G_tempfile();
vect_list = G_tempfile();
group_list = G_tempfile();
digit_points = G_tempfile();
if (R_open_driver() != 0)
G_fatal_error(_("No graphics device selected"));
/* get group ref */
strcpy(group.name, name);
if (!I_find_group(group.name))
G_fatal_error(_("Group [%s] not found"), group.name);
/* get the group ref */
I_get_group_ref(group.name, &group.group_ref);
nfiles = group.group_ref.nfiles;
/* write block files to block list file */
prepare_group_list();
/** look for camera info for this group**/
G_suppress_warnings(1);
if (!I_get_group_camera(group.name, camera))
G_fatal_error(_("No camera reference file selected for group [%s]"),
group.name);
if (!I_get_cam_info(camera, &group.camera_ref))
G_fatal_error(_("Bad format in camera file for group [%s]"),
group.name);
G_suppress_warnings(0);
/* get initial camera exposure station, if any */
if (!(ok = I_find_initial(group.name)))
G_warning(_("No initial camera exposure station for group [%s]"),
group.name);
if (ok && (!I_get_init_info(group.name, &group.camera_exp)) )
G_warning(_("Bad format in initial camera exposure station for group [%s]"),
group.name);
/* get target info and environment */
G_suppress_warnings(1);
get_target();
find_target_files();
G_suppress_warnings(0);
/* read group reference points, if any */
G_suppress_warnings(1);
if (!I_get_ref_points(group.name, &group.photo_points)) {
G_suppress_warnings(0);
if (group.photo_points.count == 0)
G_fatal_error(_("No photo points for group [%s]"), group.name);
else if (group.ref_equation_stat == 0)
G_fatal_error(_("Poorly placed photo points for group [%s]"),
group.name);
}
G_suppress_warnings(0);
/* determine transformation equation */
Compute_ref_equation();
/* read group control points, format: image x,y,cfl; target E,N,Z */
G_suppress_warnings(1);
if (!I_get_con_points(group.name, &group.control_points))
group.control_points.count = 0;
G_suppress_warnings(0);
/* compute image coordinates of photo control points */
/********
I_convert_con_points (group.name, &group.control_points,
&group.control_points, group.E12, group.N12);
********/
/* determine transformation equation */
G_message(_("Computing equations ..."));
if (group.control_points.count > 0)
Compute_ortho_equation();
/* signal (SIGINT, SIG_IGN); */
/* signal (SIGQUIT, SIG_IGN); */
select_current_env();
Init_graphics();
display_title(VIEW_MAP1);
select_target_env();
display_title(VIEW_MAP2);
select_current_env();
Begin_curses();
G_set_error_routine(error);
/*
#ifdef SIGTSTP
signal (SIGTSTP, SIG_IGN);
#endif
*/
/* Set image to be rectified */
if (map_opt->answer) {
char *ms;
ms = G_find_cell(map_opt->answer, "");
if (ms == NULL) {
G_fatal_error(_("Raster map <%s> not found"), map_opt->answer);
}
strcpy(name, map_opt->answer);
strcpy(mapset, ms);
if (G_get_cellhd(name, mapset, &cellhd) < 0) {
G_fatal_error(_("Unable to read raster header of <%s>"), map_opt->answer);
}
}
else {
/* ask user for group file to be displayed */
do {
if (!choose_groupfile(name, mapset))
quit(EXIT_SUCCESS);
/* display this file in "map1" */
} while (G_get_cellhd(name, mapset, &cellhd) < 0);
}
G_adjust_window_to_box(&cellhd, &VIEW_MAP1->cell.head, VIEW_MAP1->nrows,
VIEW_MAP1->ncols);
Configure_view(VIEW_MAP1, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP1);
/* Set target map if specified */
if (target_map_opt->answer) {
char *ms;
select_target_env();
ms = G_find_cell(target_map_opt->answer, "");
if (ms == NULL) {
G_fatal_error(_("Raster map <%s> not found"),
target_map_opt->answer);
}
strcpy(name, target_map_opt->answer);
strcpy(mapset, ms);
if (G_get_cellhd(name, mapset, &cellhd) < 0) {
G_fatal_error(_("Unable to read raster header of <%s>"),
target_map_opt->answer);
}
G_adjust_window_to_box(&cellhd, &VIEW_MAP2->cell.head,
VIEW_MAP2->nrows, VIEW_MAP2->ncols);
Configure_view(VIEW_MAP2, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP2);
from_flag = 1;
from_keyboard = 0;
from_screen = 1;
}
display_conz_points(1);
Curses_clear_window(PROMPT_WINDOW);
/* determine initial input method. */
setup_digitizer();
if (use_digitizer) {
from_digitizer = 1;
from_keyboard = 0;
from_flag = 1;
}
/* go do the work */
driver();
quit(EXIT_SUCCESS);
}
