static Symbology::Geometry*
exportPolygon( const geom::Polygon* input )
{
Symbology::Polygon* output = 0L;
const geom::LineString* outerRing = input->getExteriorRing();
if ( outerRing )
{
const geom::CoordinateSequence* s = outerRing->getCoordinates();
output = new Symbology::Polygon( s->getSize() );
for( int j=0; j<s->getSize(); j++ )
{
const geom::Coordinate& c = s->getAt( j );
output->push_back( osg::Vec3d( c.x, c.y, 0 ) );
}
output->rewind( Symbology::Ring::ORIENTATION_CCW );
for( int k=0; k < input->getNumInteriorRing(); k++ )
{
const geom::LineString* inner = input->getInteriorRingN( k );
const geom::CoordinateSequence* s = inner->getCoordinates();
Symbology::Ring* hole = new Symbology::Ring( s->getSize() );
for( int m = 0; m<s->getSize(); m++ )
{
const geom::Coordinate& c = s->getAt( m );
hole->push_back( osg::Vec3d( c.x, c.y, 0 ) );
}
hole->rewind( Symbology::Ring::ORIENTATION_CW );
output->getHoles().push_back( hole );
}
}
return output;
}
Symbology::Polygon*
OgrUtils::createPolygon( OGRGeometryH geomHandle )
{
Symbology::Polygon* output = 0L;
int numParts = OGR_G_GetGeometryCount( geomHandle );
if ( numParts == 0 )
{
int numPoints = OGR_G_GetPointCount( geomHandle );
output = new Symbology::Polygon( numPoints );
populate( geomHandle, output, numPoints );
output->open();
}
else if ( numParts > 0 )
{
for( int p = 0; p < numParts; p++ )
{
OGRGeometryH partRef = OGR_G_GetGeometryRef( geomHandle, p );
int numPoints = OGR_G_GetPointCount( partRef );
if ( p == 0 )
{
output = new Symbology::Polygon( numPoints );
populate( partRef, output, numPoints );
//output->open();
output->rewind( Symbology::Ring::ORIENTATION_CCW );
}
else
{
Symbology::Ring* hole = new Symbology::Ring( numPoints );
populate( partRef, hole, numPoints );
//hole->open();
hole->rewind( Symbology::Ring::ORIENTATION_CW );
output->getHoles().push_back( hole );
}
}
}
return output;
}