OGRErr OGR_G_AddGeometryDirectly( OGRGeometryH hGeom,
OGRGeometryH hNewSubGeom )
{
VALIDATE_POINTER1( hGeom, "OGR_G_AddGeometryDirectly", OGRERR_UNSUPPORTED_OPERATION );
VALIDATE_POINTER1( hNewSubGeom, "OGR_G_AddGeometryDirectly", OGRERR_UNSUPPORTED_OPERATION );
OGRErr eErr = OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsSubClassOf(eType, wkbCurvePolygon) )
{
if( OGR_GT_IsCurve( wkbFlatten(((OGRGeometry *) hNewSubGeom)->getGeometryType()) ) )
eErr = ((OGRCurvePolygon *)hGeom)->addRingDirectly( (OGRCurve *) hNewSubGeom );
}
else if( OGR_GT_IsSubClassOf(eType, wkbCompoundCurve) )
{
if( OGR_GT_IsCurve( wkbFlatten(((OGRGeometry *) hNewSubGeom)->getGeometryType()) ) )
eErr = ((OGRCompoundCurve *)hGeom)->addCurveDirectly( (OGRCurve *) hNewSubGeom );
}
else if( OGR_GT_IsSubClassOf(eType, wkbGeometryCollection) )
{
eErr = ((OGRGeometryCollection *)hGeom)->addGeometryDirectly(
(OGRGeometry *) hNewSubGeom );
}
if( eErr != OGRERR_NONE )
delete (OGRGeometry*)hNewSubGeom;
return eErr;
}
OGRGeometryH OGR_G_GetGeometryRef( OGRGeometryH hGeom, int iSubGeom )
{
VALIDATE_POINTER1( hGeom, "OGR_G_GetGeometryRef", NULL );
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsSubClassOf(eType, wkbCurvePolygon) )
{
if( iSubGeom == 0 )
return (OGRGeometryH)
((OGRCurvePolygon *)hGeom)->getExteriorRingCurve();
else
return (OGRGeometryH)
((OGRCurvePolygon *)hGeom)->getInteriorRingCurve(iSubGeom-1);
}
else if( OGR_GT_IsSubClassOf(eType, wkbCompoundCurve) )
return (OGRGeometryH) ((OGRCompoundCurve *)hGeom)->getCurve(iSubGeom);
else if( OGR_GT_IsSubClassOf(eType, wkbGeometryCollection) )
return (OGRGeometryH) ((OGRGeometryCollection *)hGeom)->getGeometryRef( iSubGeom );
else
{
CPLError(CE_Failure, CPLE_NotSupported, "Incompatible geometry for operation");
return 0;
}
}
double OGRGeometryCollection::get_Area() const
{
double dfArea = 0.0;
for( auto&& poSubGeom: *this )
{
OGRwkbGeometryType eType = wkbFlatten(poSubGeom->getGeometryType());
if( OGR_GT_IsSurface(eType) )
{
const OGRSurface *poSurface = poSubGeom->toSurface();
dfArea += poSurface->get_Area();
}
else if( OGR_GT_IsCurve(eType) )
{
const OGRCurve *poCurve = poSubGeom->toCurve();
dfArea += poCurve->get_Area();
}
else if( OGR_GT_IsSubClassOf(eType, wkbMultiSurface) ||
eType == wkbGeometryCollection )
{
dfArea += poSubGeom->toGeometryCollection()->get_Area();
}
}
return dfArea;
}
double OGR_G_Area( OGRGeometryH hGeom )
{
VALIDATE_POINTER1( hGeom, "OGR_G_Area", 0 );
double dfArea;
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsSurface(eType) )
{
dfArea = ((OGRSurface *) hGeom)->get_Area();
}
else if( OGR_GT_IsCurve(eType) )
{
dfArea = ((OGRCurve *) hGeom)->get_Area();
}
else if( OGR_GT_IsSubClassOf(eType, wkbMultiSurface) ||
eType == wkbGeometryCollection )
{
dfArea = ((OGRGeometryCollection *) hGeom)->get_Area();
}
else
{
CPLError( CE_Warning, CPLE_AppDefined,
"OGR_G_Area() called against non-surface geometry type." );
dfArea = 0.0;
}
return dfArea;
}
double OGR_G_Length( OGRGeometryH hGeom )
{
VALIDATE_POINTER1( hGeom, "OGR_G_GetLength", 0 );
double dfLength;
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsCurve(eType) )
{
dfLength = ((OGRCurve *) hGeom)->get_Length();
}
else if( OGR_GT_IsSubClassOf(eType, wkbMultiCurve) ||
eType == wkbGeometryCollection )
{
dfLength = ((OGRGeometryCollection *) hGeom)->get_Length();
}
else
{
CPLError( CE_Warning, CPLE_AppDefined,
"OGR_G_Length() called against a non-curve geometry type." );
dfLength = 0.0;
}
return dfLength;
}
OGRErr OGR_G_RemoveGeometry( OGRGeometryH hGeom, int iGeom, int bDelete )
{
VALIDATE_POINTER1( hGeom, "OGR_G_RemoveGeometry", 0 );
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsSubClassOf(eType, wkbCurvePolygon) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"OGR_G_RemoveGeometry() not supported on polygons yet." );
return OGRERR_UNSUPPORTED_OPERATION;
}
else if( OGR_GT_IsSubClassOf(eType, wkbGeometryCollection) )
{
return ((OGRGeometryCollection *)hGeom)->removeGeometry( iGeom,bDelete);
}
else
{
return OGRERR_UNSUPPORTED_OPERATION;
}
}
void OGRGeometryCollection::closeRings()
{
for( auto&& poSubGeom: *this )
{
if( OGR_GT_IsSubClassOf(
wkbFlatten(poSubGeom->getGeometryType()),
wkbCurvePolygon ) )
{
OGRCurvePolygon *poPoly = poSubGeom->toCurvePolygon();
poPoly->closeRings();
}
}
}
int OGR_G_GetGeometryCount( OGRGeometryH hGeom )
{
VALIDATE_POINTER1( hGeom, "OGR_G_GetGeometryCount", 0 );
OGRwkbGeometryType eType = wkbFlatten(((OGRGeometry *) hGeom)->getGeometryType());
if( OGR_GT_IsSubClassOf(eType, wkbCurvePolygon) )
{
if( ((OGRCurvePolygon *)hGeom)->getExteriorRingCurve() == NULL )
return 0;
else
return ((OGRCurvePolygon *)hGeom)->getNumInteriorRings() + 1;
}
else if( OGR_GT_IsSubClassOf(eType, wkbCompoundCurve) )
return ((OGRCompoundCurve *)hGeom)->getNumCurves();
else if( OGR_GT_IsSubClassOf(eType, wkbGeometryCollection) )
return ((OGRGeometryCollection *)hGeom)->getNumGeometries();
else
{
// autotest/pymod/ogrtest.py calls this method on any geometry. So keep silent
//CPLError(CE_Failure, CPLE_NotSupported, "Incompatible geometry for operation");
return 0;
}
}
double OGRGeometryCollection::get_Length() const
{
double dfLength = 0.0;
for( int iGeom = 0; iGeom < nGeomCount; iGeom++ )
{
OGRGeometry* geom = papoGeoms[iGeom];
OGRwkbGeometryType eType = wkbFlatten(geom->getGeometryType());
if( OGR_GT_IsCurve(eType) )
{
dfLength += ((OGRCurve *) geom)->get_Length();
}
else if( OGR_GT_IsSubClassOf(eType, wkbMultiCurve) ||
eType == wkbGeometryCollection )
{
dfLength += ((OGRGeometryCollection *) geom)->get_Length();
}
}
return dfLength;
}
double OGRGeometryCollection::get_Length() const
{
double dfLength = 0.0;
for( auto&& poSubGeom: *this )
{
const OGRwkbGeometryType eType = wkbFlatten(poSubGeom->getGeometryType());
if( OGR_GT_IsCurve(eType) )
{
const OGRCurve *poCurve = poSubGeom->toCurve();
dfLength += poCurve->get_Length();
}
else if( OGR_GT_IsSubClassOf(eType, wkbMultiCurve) ||
eType == wkbGeometryCollection )
{
const OGRGeometryCollection *poColl = poSubGeom->toGeometryCollection();
dfLength += poColl->get_Length();
}
}
return dfLength;
}
OGRErr OGRGeometryCollection::importFromWkbInternal( const unsigned char * pabyData,
int nSize, int nRecLevel,
OGRwkbVariant eWkbVariant,
int& nBytesConsumedOut )
{
nBytesConsumedOut = -1;
// Arbitrary value, but certainly large enough for reasonable use cases.
if( nRecLevel == 32 )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Too many recursion levels (%d) while parsing WKB geometry.",
nRecLevel );
return OGRERR_CORRUPT_DATA;
}
nGeomCount = 0;
OGRwkbByteOrder eByteOrder = wkbXDR;
int nDataOffset = 0;
OGRErr eErr = importPreambleOfCollectionFromWkb( pabyData,
nSize,
nDataOffset,
eByteOrder,
9,
nGeomCount,
eWkbVariant );
if( eErr != OGRERR_NONE )
return eErr;
// coverity[tainted_data]
papoGeoms = static_cast<OGRGeometry **>(
VSI_CALLOC_VERBOSE(sizeof(void*), nGeomCount));
if( nGeomCount != 0 && papoGeoms == nullptr )
{
nGeomCount = 0;
return OGRERR_NOT_ENOUGH_MEMORY;
}
/* -------------------------------------------------------------------- */
/* Get the Geoms. */
/* -------------------------------------------------------------------- */
for( int iGeom = 0; iGeom < nGeomCount; iGeom++ )
{
// Parses sub-geometry.
const unsigned char* pabySubData = pabyData + nDataOffset;
if( nSize < 9 && nSize != -1 )
return OGRERR_NOT_ENOUGH_DATA;
OGRwkbGeometryType eSubGeomType = wkbUnknown;
eErr = OGRReadWKBGeometryType( pabySubData, eWkbVariant,
&eSubGeomType );
if( eErr != OGRERR_NONE )
return eErr;
if( !isCompatibleSubType(eSubGeomType) )
{
nGeomCount = iGeom;
CPLDebug(
"OGR",
"Cannot add geometry of type (%d) to geometry of type (%d)",
eSubGeomType, getGeometryType());
return OGRERR_CORRUPT_DATA;
}
OGRGeometry* poSubGeom = nullptr;
int nSubGeomBytesConsumed = -1;
if( OGR_GT_IsSubClassOf(eSubGeomType, wkbGeometryCollection) )
{
poSubGeom = OGRGeometryFactory::createGeometry( eSubGeomType );
if( poSubGeom == nullptr )
eErr = OGRERR_FAILURE;
else
eErr = poSubGeom->toGeometryCollection()->
importFromWkbInternal( pabySubData, nSize,
nRecLevel + 1, eWkbVariant,
nSubGeomBytesConsumed );
}
else
{
eErr = OGRGeometryFactory::
createFromWkb( pabySubData, nullptr,
&poSubGeom, nSize, eWkbVariant,
nSubGeomBytesConsumed );
}
if( eErr != OGRERR_NONE )
{
nGeomCount = iGeom;
delete poSubGeom;
return eErr;
}
papoGeoms[iGeom] = poSubGeom;
if( papoGeoms[iGeom]->Is3D() )
flags |= OGR_G_3D;
if( papoGeoms[iGeom]->IsMeasured() )
flags |= OGR_G_MEASURED;
CPLAssert( nSubGeomBytesConsumed > 0 );
if( nSize != -1 )
{
CPLAssert( nSize >= nSubGeomBytesConsumed );
nSize -= nSubGeomBytesConsumed;
}
nDataOffset += nSubGeomBytesConsumed;
}
nBytesConsumedOut = nDataOffset;
return OGRERR_NONE;
}
