QString QgsShapeFile::getFeatureClass(){
OGRFeature *feat = ogrLayer->GetNextFeature();
if(feat){
OGRGeometry *geom = feat->GetGeometryRef();
if(geom){
geom_type = QString(geom->getGeometryName());
char * esc_str = new char[geom_type.length()*2+1];
PQescapeString(esc_str, (const char *)geom_type, geom_type.length());
geom_type = QString(esc_str);
delete[] esc_str;
QString file(filename);
file.replace(file.length()-3, 3, "dbf");
// open the dbf file
std::ifstream dbf((const char*)file, std::ios::in | std::ios::binary);
// read header
DbaseHeader dbh;
dbf.read((char *)&dbh, sizeof(dbh));
Fda fda;
QString str_type = "varchar(";
for(int field_count = 0, bytes_read = sizeof(dbh); bytes_read < dbh.size_hdr-1; field_count++, bytes_read +=sizeof(fda)){
dbf.read((char *)&fda, sizeof(fda));
switch(fda.field_type){
case 'N': if((int)fda.field_decimal>0)
column_types.push_back("float");
else
column_types.push_back("int");
break;
case 'F': column_types.push_back("float");
break;
case 'D': column_types.push_back("date");
break;
case 'C':
str_type= QString("varchar(%1)").arg(fda.field_length);
column_types.push_back(str_type);
break;
case 'L': column_types.push_back("boolean");
break;
default:
column_types.push_back("varchar(256)");
break;
}
}
dbf.close();
int numFields = feat->GetFieldCount();
for(int n=0; n<numFields; n++)
column_names.push_back(feat->GetFieldDefnRef(n)->GetNameRef());
}else valid = false;
delete feat;
}else valid = false;
ogrLayer->ResetReading();
return valid?geom_type:NULL;
}
int main() {
// Read in raster data for night time lights
int band_number = 1; // only one band, starts with one
Raster* raster = import_raster("raster.tif", band_number);
// Read in shapefile data containing municipality administrative regions
int layer_number = 0; // only one layer, starts with zero
OGRLayer* shapelayer = import_shapefile("MEX_adm2.shp", layer_number);
shapelayer->SetAttributeFilter("ID_1 = 1834"); // Filter for Yucatan
const int idx_of_number_field = 5; // Column number of municipality number
const int idx_of_name_field = 6; // Column number of municipality name
OGRFeature* poFeature;
int feature_ctr = 0;
while( (poFeature = shapelayer->GetNextFeature()) != NULL ) {
cerr << "Feature: " << feature_ctr++ << "\t";
int feature_num = poFeature->GetFieldAsInteger(idx_of_number_field);
string feature_name = poFeature->GetFieldAsString(idx_of_name_field);
OGRFeatureDefn *poFDefn = shapelayer->GetLayerDefn();
for( int iField = 0; iField < poFDefn->GetFieldCount(); iField++ ) {
OGRFieldDefn *poFieldDefn = poFDefn->GetFieldDefn( iField );
if( poFieldDefn->GetType() == OFTString ) cerr << poFeature->GetFieldAsString(iField) << ",";
}
OGRGeometry* poGeometry = poFeature->GetGeometryRef();
if( poGeometry != NULL) {
// For contiguous regions
if ( wkbFlatten(poGeometry->getGeometryType()) == wkbPolygon ) {
cerr << " polygon" << endl;
report_raster_data_within_polygon(raster, (OGRPolygon *) poGeometry, feature_num, feature_name);
// For disjoint regions
} else if ( wkbFlatten(poGeometry->getGeometryType()) == wkbMultiPolygon ) {
cerr << " multipolygon" << endl;
OGRMultiPolygon *multipolygon = (OGRMultiPolygon *) poGeometry;
for (int i = 0; i<multipolygon->getNumGeometries(); i++) {
report_raster_data_within_polygon(raster, (OGRPolygon*) multipolygon->getGeometryRef(i), feature_num, feature_name);
}
// Is this really the right shapefile?
} else {
cerr << "No polygon or multipolygon geometry for this feature: " << poGeometry->getGeometryName() << endl;
}
} else {
cerr << "No geometry for this feature" << endl;
}
}
OGRFeature::DestroyFeature( poFeature );
}
OGRErr OGRPCIDSKLayer::ISetFeature( OGRFeature *poFeature )
{
PCIDSK::ShapeId id = (PCIDSK::ShapeId) poFeature->GetFID();
/* -------------------------------------------------------------------- */
/* Translate attribute fields. */
/* -------------------------------------------------------------------- */
try {
int iPCI;
std::vector<PCIDSK::ShapeField> aoPCIFields;
aoPCIFields.resize(poVecSeg->GetFieldCount());
for( iPCI = 0; iPCI < poVecSeg->GetFieldCount(); iPCI++ )
{
int iOGR;
iOGR = poFeatureDefn->GetFieldIndex(
poVecSeg->GetFieldName(iPCI).c_str() );
if( iOGR == -1 )
continue;
switch( poVecSeg->GetFieldType(iPCI) )
{
case PCIDSK::FieldTypeInteger:
aoPCIFields[iPCI].SetValue(
poFeature->GetFieldAsInteger( iOGR ) );
break;
case PCIDSK::FieldTypeFloat:
aoPCIFields[iPCI].SetValue(
(float) poFeature->GetFieldAsDouble( iOGR ) );
break;
case PCIDSK::FieldTypeDouble:
aoPCIFields[iPCI].SetValue(
(double) poFeature->GetFieldAsDouble( iOGR ) );
break;
case PCIDSK::FieldTypeString:
aoPCIFields[iPCI].SetValue(
poFeature->GetFieldAsString( iOGR ) );
break;
case PCIDSK::FieldTypeCountedInt:
{
int nCount;
const int *panList =
poFeature->GetFieldAsIntegerList( iOGR, &nCount );
std::vector<PCIDSK::int32> anList;
anList.resize( nCount );
memcpy( &(anList[0]), panList, 4 * anList.size() );
aoPCIFields[iPCI].SetValue( anList );
}
break;
default:
CPLAssert( FALSE );
break;
}
}
if( poVecSeg->GetFieldCount() > 0 )
poVecSeg->SetFields( id, aoPCIFields );
/* -------------------------------------------------------------------- */
/* Translate the geometry. */
/* -------------------------------------------------------------------- */
std::vector<PCIDSK::ShapeVertex> aoVertices;
OGRGeometry *poGeometry = poFeature->GetGeometryRef();
if( poGeometry == NULL )
{
}
else if( wkbFlatten(poGeometry->getGeometryType()) == wkbPoint )
{
OGRPoint *poPoint = (OGRPoint *) poGeometry;
aoVertices.resize(1);
aoVertices[0].x = poPoint->getX();
aoVertices[0].y = poPoint->getY();
aoVertices[0].z = poPoint->getZ();
}
else if( wkbFlatten(poGeometry->getGeometryType()) == wkbLineString )
{
OGRLineString *poLS = (OGRLineString *) poGeometry;
unsigned int i;
aoVertices.resize(poLS->getNumPoints());
for( i = 0; i < aoVertices.size(); i++ )
{
aoVertices[i].x = poLS->getX(i);
aoVertices[i].y = poLS->getY(i);
aoVertices[i].z = poLS->getZ(i);
}
}
else
{
CPLDebug( "PCIDSK", "Unsupported geometry type in SetFeature(): %s",
poGeometry->getGeometryName() );
}
poVecSeg->SetVertices( id, aoVertices );
} /* try */
/* -------------------------------------------------------------------- */
/* Trap exceptions and report as CPL errors. */
/* -------------------------------------------------------------------- */
catch( PCIDSK::PCIDSKException ex )
{
CPLError( CE_Failure, CPLE_AppDefined,
"%s", ex.what() );
return OGRERR_FAILURE;
}
catch(...)
{
CPLError( CE_Failure, CPLE_AppDefined,
"Non-PCIDSK exception trapped." );
return OGRERR_FAILURE;
}
return OGRERR_NONE;
}
OGRErr OGRBNALayer::CreateFeature( OGRFeature *poFeature )
{
int i,j,k,n;
OGRGeometry *poGeom = poFeature->GetGeometryRef();
char eol[3];
const char* partialEol = (poDS->GetMultiLine()) ? eol : poDS->GetCoordinateSeparator();
if (poGeom == NULL || poGeom->IsEmpty() )
{
CPLError(CE_Failure, CPLE_AppDefined,
"OGR BNA driver cannot write features with empty geometries.");
return OGRERR_FAILURE;
}
if (poDS->GetUseCRLF())
{
eol[0] = 13;
eol[1] = 10;
eol[2] = 0;
}
else
{
eol[0] = 10;
eol[1] = 0;
}
if ( ! bWriter )
{
return OGRERR_FAILURE;
}
if( poFeature->GetFID() == OGRNullFID )
poFeature->SetFID( nFeatures++ );
VSILFILE* fp = poDS->GetOutputFP();
int nbPairPerLine = poDS->GetNbPairPerLine();
switch( poGeom->getGeometryType() )
{
case wkbPoint:
case wkbPoint25D:
{
OGRPoint* point = (OGRPoint*)poGeom;
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "1");
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, point->getX(), point->getY());
VSIFPrintfL( fp, "%s", eol);
break;
}
case wkbPolygon:
case wkbPolygon25D:
{
OGRPolygon* polygon = (OGRPolygon*)poGeom;
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
{
return OGRERR_FAILURE;
}
double firstX = ring->getX(0);
double firstY = ring->getY(0);
int nBNAPoints = ring->getNumPoints();
int is_ellipse = FALSE;
/* This code tries to detect an ellipse in a polygon geometry */
/* This will only work presumably on ellipses already read from a BNA file */
/* Mostly a BNA to BNA feature... */
if (poDS->GetEllipsesAsEllipses() &&
polygon->getNumInteriorRings() == 0 &&
nBNAPoints == 361)
{
double oppositeX = ring->getX(180);
double oppositeY = ring->getY(180);
double quarterX = ring->getX(90);
double quarterY = ring->getY(90);
double antiquarterX = ring->getX(270);
double antiquarterY = ring->getY(270);
double center1X = 0.5*(firstX + oppositeX);
double center1Y = 0.5*(firstY + oppositeY);
double center2X = 0.5*(quarterX + antiquarterX);
double center2Y = 0.5*(quarterY + antiquarterY);
if (fabs(center1X - center2X) < 1e-5 && fabs(center1Y - center2Y) < 1e-5 &&
fabs(oppositeY - firstY) < 1e-5 &&
fabs(quarterX - antiquarterX) < 1e-5)
{
double major_radius = fabs(firstX - center1X);
double minor_radius = fabs(quarterY - center1Y);
is_ellipse = TRUE;
for(i=0;i<360;i++)
{
if (!(fabs(center1X + major_radius * cos(i * (M_PI / 180)) - ring->getX(i)) < 1e-5 &&
fabs(center1Y + minor_radius * sin(i * (M_PI / 180)) - ring->getY(i)) < 1e-5))
{
is_ellipse = FALSE;
break;
}
}
if ( is_ellipse == TRUE )
{
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "2");
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, center1X, center1Y);
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, major_radius, minor_radius);
VSIFPrintfL( fp, "%s", eol);
}
}
}
if ( is_ellipse == FALSE)
{
int nInteriorRings = polygon->getNumInteriorRings();
for(i=0;i<nInteriorRings;i++)
{
nBNAPoints += polygon->getInteriorRing(i)->getNumPoints() + 1;
}
if (nBNAPoints <= 3)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "%d", nBNAPoints);
n = ring->getNumPoints();
int nbPair = 0;
for(i=0;i<n;i++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(i), ring->getY(i));
nbPair++;
}
for(i=0;i<nInteriorRings;i++)
{
ring = polygon->getInteriorRing(i);
n = ring->getNumPoints();
for(j=0;j<n;j++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(j), ring->getY(j));
nbPair++;
}
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
VSIFPrintfL( fp, "%s", eol);
}
break;
}
case wkbMultiPolygon:
case wkbMultiPolygon25D:
{
OGRMultiPolygon* multipolygon = (OGRMultiPolygon*)poGeom;
int N = multipolygon->getNumGeometries();
int nBNAPoints = 0;
double firstX = 0, firstY = 0;
for(i=0;i<N;i++)
{
OGRPolygon* polygon = (OGRPolygon*)multipolygon->getGeometryRef(i);
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
continue;
if (nBNAPoints)
nBNAPoints ++;
else
{
firstX = ring->getX(0);
firstY = ring->getY(0);
}
nBNAPoints += ring->getNumPoints();
int nInteriorRings = polygon->getNumInteriorRings();
for(j=0;j<nInteriorRings;j++)
{
nBNAPoints += polygon->getInteriorRing(j)->getNumPoints() + 1;
}
}
if (nBNAPoints <= 3)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "%d", nBNAPoints);
int nbPair = 0;
for(i=0;i<N;i++)
{
OGRPolygon* polygon = (OGRPolygon*)multipolygon->getGeometryRef(i);
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
continue;
n = ring->getNumPoints();
int nInteriorRings = polygon->getNumInteriorRings();
for(j=0;j<n;j++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(j), ring->getY(j));
nbPair++;
}
if (i != 0)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
for(j=0;j<nInteriorRings;j++)
{
ring = polygon->getInteriorRing(j);
n = ring->getNumPoints();
for(k=0;k<n;k++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(k), ring->getY(k));
nbPair++;
}
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
}
VSIFPrintfL( fp, "%s", eol);
break;
}
case wkbLineString:
case wkbLineString25D:
{
OGRLineString* line = (OGRLineString*)poGeom;
int n = line->getNumPoints();
int i;
if (n < 2)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "-%d", n);
int nbPair = 0;
for(i=0;i<n;i++)
{
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, line->getX(i), line->getY(i));
nbPair++;
}
VSIFPrintfL( fp, "%s", eol);
break;
}
default:
{
CPLError( CE_Failure, CPLE_AppDefined,
"Unsupported geometry type : %s.",
poGeom->getGeometryName() );
return OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
}
}
return OGRERR_NONE;
}
static OGRGeometry *GML2OGRGeometry_XMLNode( CPLXMLNode *psNode )
{
const char *pszBaseGeometry = BareGMLElement( psNode->pszValue );
/* -------------------------------------------------------------------- */
/* Polygon */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"Polygon") )
{
CPLXMLNode *psChild;
OGRPolygon *poPolygon = new OGRPolygon();
OGRLinearRing *poRing;
// Find outer ring.
psChild = FindBareXMLChild( psNode, "outerBoundaryIs" );
if( psChild == NULL || psChild->psChild == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Missing outerBoundaryIs property on Polygon." );
delete poPolygon;
return NULL;
}
// Translate outer ring and add to polygon.
poRing = (OGRLinearRing *)
GML2OGRGeometry_XMLNode( psChild->psChild );
if( poRing == NULL )
{
delete poPolygon;
return NULL;
}
if( !EQUAL(poRing->getGeometryName(),"LINEARRING") )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Got %.500s geometry as outerBoundaryIs instead of LINEARRING.",
poRing->getGeometryName() );
delete poPolygon;
delete poRing;
return NULL;
}
poPolygon->addRingDirectly( poRing );
// Find all inner rings
for( psChild = psNode->psChild;
psChild != NULL;
psChild = psChild->psNext )
{
if( psChild->eType == CXT_Element
&& EQUAL(BareGMLElement(psChild->pszValue),"innerBoundaryIs") )
{
poRing = (OGRLinearRing *)
GML2OGRGeometry_XMLNode( psChild->psChild );
if( !EQUAL(poRing->getGeometryName(),"LINEARRING") )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Got %.500s geometry as innerBoundaryIs instead of LINEARRING.",
poRing->getGeometryName() );
delete poPolygon;
delete poRing;
return NULL;
}
poPolygon->addRingDirectly( poRing );
}
}
return poPolygon;
}
/* -------------------------------------------------------------------- */
/* LinearRing */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"LinearRing") )
{
OGRLinearRing *poLinearRing = new OGRLinearRing();
if( !ParseGMLCoordinates( psNode, poLinearRing ) )
{
delete poLinearRing;
return NULL;
}
return poLinearRing;
}
/* -------------------------------------------------------------------- */
/* LineString */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"LineString") )
{
OGRLineString *poLine = new OGRLineString();
if( !ParseGMLCoordinates( psNode, poLine ) )
{
delete poLine;
return NULL;
}
return poLine;
}
/* -------------------------------------------------------------------- */
/* PointType */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"PointType")
|| EQUAL(pszBaseGeometry,"Point") )
{
OGRPoint *poPoint = new OGRPoint();
if( !ParseGMLCoordinates( psNode, poPoint ) )
{
delete poPoint;
return NULL;
}
return poPoint;
}
/* -------------------------------------------------------------------- */
/* Box */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"BoxType") || EQUAL(pszBaseGeometry,"Box") )
{
OGRLineString oPoints;
if( !ParseGMLCoordinates( psNode, &oPoints ) )
return NULL;
if( oPoints.getNumPoints() < 2 )
return NULL;
OGRLinearRing *poBoxRing = new OGRLinearRing();
OGRPolygon *poBoxPoly = new OGRPolygon();
poBoxRing->setNumPoints( 5 );
poBoxRing->setPoint(
0, oPoints.getX(0), oPoints.getY(0), oPoints.getZ(0) );
poBoxRing->setPoint(
1, oPoints.getX(1), oPoints.getY(0), oPoints.getZ(0) );
poBoxRing->setPoint(
2, oPoints.getX(1), oPoints.getY(1), oPoints.getZ(1) );
poBoxRing->setPoint(
3, oPoints.getX(0), oPoints.getY(1), oPoints.getZ(0) );
poBoxRing->setPoint(
4, oPoints.getX(0), oPoints.getY(0), oPoints.getZ(0) );
poBoxPoly->addRingDirectly( poBoxRing );
return poBoxPoly;
}
/* -------------------------------------------------------------------- */
/* MultiPolygon */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"MultiPolygon") )
{
CPLXMLNode *psChild;
OGRMultiPolygon *poMPoly = new OGRMultiPolygon();
// Find all inner rings
for( psChild = psNode->psChild;
psChild != NULL;
psChild = psChild->psNext )
{
if( psChild->eType == CXT_Element
&& EQUAL(BareGMLElement(psChild->pszValue),"polygonMember") )
{
OGRPolygon *poPolygon;
poPolygon = (OGRPolygon *)
GML2OGRGeometry_XMLNode( psChild->psChild );
if( poPolygon == NULL )
{
delete poMPoly;
return NULL;
}
if( !EQUAL(poPolygon->getGeometryName(),"POLYGON") )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Got %.500s geometry as polygonMember instead of MULTIPOLYGON.",
poPolygon->getGeometryName() );
delete poPolygon;
delete poMPoly;
return NULL;
}
poMPoly->addGeometryDirectly( poPolygon );
}
}
return poMPoly;
}
/* -------------------------------------------------------------------- */
/* MultiPoint */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"MultiPoint") )
{
CPLXMLNode *psChild;
OGRMultiPoint *poMP = new OGRMultiPoint();
// collect points.
for( psChild = psNode->psChild;
psChild != NULL;
psChild = psChild->psNext )
{
if( psChild->eType == CXT_Element
&& EQUAL(BareGMLElement(psChild->pszValue),"pointMember") )
{
OGRPoint *poPoint;
poPoint = (OGRPoint *)
GML2OGRGeometry_XMLNode( psChild->psChild );
if( poPoint == NULL
|| wkbFlatten(poPoint->getGeometryType()) != wkbPoint )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Got %.500s geometry as pointMember instead of MULTIPOINT",
poPoint ? poPoint->getGeometryName() : "NULL" );
delete poPoint;
delete poMP;
return NULL;
}
poMP->addGeometryDirectly( poPoint );
}
}
return poMP;
}
/* -------------------------------------------------------------------- */
/* MultiLineString */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"MultiLineString") )
{
CPLXMLNode *psChild;
OGRMultiLineString *poMP = new OGRMultiLineString();
// collect lines
for( psChild = psNode->psChild;
psChild != NULL;
psChild = psChild->psNext )
{
if( psChild->eType == CXT_Element
&& EQUAL(BareGMLElement(psChild->pszValue),"lineStringMember") )
{
OGRGeometry *poGeom;
poGeom = GML2OGRGeometry_XMLNode( psChild->psChild );
if( poGeom == NULL
|| wkbFlatten(poGeom->getGeometryType()) != wkbLineString )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Got %.500s geometry as Member instead of LINESTRING.",
poGeom ? poGeom->getGeometryName() : "NULL" );
delete poGeom;
delete poMP;
return NULL;
}
poMP->addGeometryDirectly( poGeom );
}
}
return poMP;
}
/* -------------------------------------------------------------------- */
/* GeometryCollection */
/* -------------------------------------------------------------------- */
if( EQUAL(pszBaseGeometry,"GeometryCollection") )
{
CPLXMLNode *psChild;
OGRGeometryCollection *poGC = new OGRGeometryCollection();
// collect geoms
for( psChild = psNode->psChild;
psChild != NULL;
psChild = psChild->psNext )
{
if( psChild->eType == CXT_Element
&& EQUAL(BareGMLElement(psChild->pszValue),"geometryMember") )
{
OGRGeometry *poGeom;
poGeom = GML2OGRGeometry_XMLNode( psChild->psChild );
if( poGeom == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Failed to get geometry in geometryMember" );
delete poGeom;
delete poGC;
return NULL;
}
poGC->addGeometryDirectly( poGeom );
}
}
return poGC;
}
CPLError( CE_Failure, CPLE_AppDefined,
"Unrecognised geometry type <%.500s>.",
pszBaseGeometry );
return NULL;
}
int
NBHeightMapper::loadShapeFile(const std::string& file) {
#ifdef HAVE_GDAL
#if GDAL_VERSION_MAJOR < 2
OGRRegisterAll();
OGRDataSource* ds = OGRSFDriverRegistrar::Open(file.c_str(), FALSE);
#else
GDALAllRegister();
GDALDataset* ds = (GDALDataset*)GDALOpenEx(file.c_str(), GDAL_OF_VECTOR | GA_ReadOnly, NULL, NULL, NULL);
#endif
if (ds == NULL) {
throw ProcessError("Could not open shape file '" + file + "'.");
}
// begin file parsing
OGRLayer* layer = ds->GetLayer(0);
layer->ResetReading();
// triangle coordinates are stored in WGS84 and later matched with network coordinates in WGS84
// build coordinate transformation
OGRSpatialReference* sr_src = layer->GetSpatialRef();
OGRSpatialReference sr_dest;
sr_dest.SetWellKnownGeogCS("WGS84");
OGRCoordinateTransformation* toWGS84 = OGRCreateCoordinateTransformation(sr_src, &sr_dest);
if (toWGS84 == 0) {
WRITE_WARNING("Could not create geocoordinates converter; check whether proj.4 is installed.");
}
int numFeatures = 0;
OGRFeature* feature;
layer->ResetReading();
while ((feature = layer->GetNextFeature()) != NULL) {
OGRGeometry* geom = feature->GetGeometryRef();
assert(geom != 0);
// @todo gracefull handling of shapefiles with unexpected contents or any error handling for that matter
assert(std::string(geom->getGeometryName()) == std::string("POLYGON"));
// try transform to wgs84
geom->transform(toWGS84);
OGRLinearRing* cgeom = ((OGRPolygon*) geom)->getExteriorRing();
// assume TIN with with 4 points and point0 == point3
assert(cgeom->getNumPoints() == 4);
PositionVector corners;
for (int j = 0; j < 3; j++) {
Position pos((double) cgeom->getX(j), (double) cgeom->getY(j), (double) cgeom->getZ(j));
corners.push_back(pos);
myBoundary.add(pos);
}
addTriangle(corners);
numFeatures++;
/*
OGRwkbGeometryType gtype = geom->getGeometryType();
switch (gtype) {
case wkbPolygon: {
break;
}
case wkbPoint: {
WRITE_WARNING("got wkbPoint");
break;
}
case wkbLineString: {
WRITE_WARNING("got wkbLineString");
break;
}
case wkbMultiPoint: {
WRITE_WARNING("got wkbMultiPoint");
break;
}
case wkbMultiLineString: {
WRITE_WARNING("got wkbMultiLineString");
break;
}
case wkbMultiPolygon: {
WRITE_WARNING("got wkbMultiPolygon");
break;
}
default:
WRITE_WARNING("Unsupported shape type occurred");
break;
}
*/
OGRFeature::DestroyFeature(feature);
}
#if GDAL_VERSION_MAJOR < 2
OGRDataSource::DestroyDataSource(ds);
#else
GDALClose(ds);
#endif
OCTDestroyCoordinateTransformation(toWGS84);
OGRCleanupAll();
return numFeatures;
#else
UNUSED_PARAMETER(file);
WRITE_ERROR("Cannot load shape file since SUMO was compiled without GDAL support.");
return 0;
#endif
}
