OGRLineString* OGRMSSQLGeometryParser::ReadLineString(int iShape)
{
int iFigure, iPoint, iNextPoint, i;
iFigure = FigureOffset(iShape);
OGRLineString* poLineString = new OGRLineString();
iPoint = PointOffset(iFigure);
iNextPoint = NextPointOffset(iFigure);
poLineString->setNumPoints(iNextPoint - iPoint);
i = 0;
while (iPoint < iNextPoint)
{
if (nColType == MSSQLCOLTYPE_GEOGRAPHY)
{
if ( chProps & SP_HASZVALUES )
poLineString->setPoint(i, ReadY(iPoint), ReadX(iPoint), ReadZ(iPoint) );
else
poLineString->setPoint(i, ReadY(iPoint), ReadX(iPoint) );
}
else
{
if ( chProps & SP_HASZVALUES )
poLineString->setPoint(i, ReadX(iPoint), ReadY(iPoint), ReadZ(iPoint) );
else
poLineString->setPoint(i, ReadX(iPoint), ReadY(iPoint) );
}
++iPoint;
++i;
}
return poLineString;
}
void QgsMssqlGeometryParser::ReadLineString( int iShape )
{
int iFigure, iPoint, iNextPoint, i, iCount;
iFigure = FigureOffset( iShape );
iPoint = PointOffset( iFigure );
iNextPoint = NextPointOffset( iFigure );
iCount = iNextPoint - iPoint;
if ( iCount <= 0 )
return;
// copy byte order
CopyBytes( &chByteOrder, 1 );
// copy type
int wkbType;
if ( chProps & SP_HASZVALUES )
wkbType = QGis::WKBLineString25D;
else
wkbType = QGis::WKBLineString;
CopyBytes( &wkbType, 4 );
// copy length
CopyBytes( &iCount, 4 );
// copy coordinates
i = 0;
while ( iPoint < iNextPoint )
{
CopyCoordinates( iPoint );
++iPoint;
++i;
}
}
void QgsMssqlGeometryParser::ReadMultiPoint(int iShape)
{
int iFigure, iPoint, iNextPoint, iCount;
iFigure = FigureOffset(iShape);
iNextPoint = NextPointOffset(iFigure);
iCount = iNextPoint - PointOffset(iFigure);
if (iCount <= 0)
return;
// copy byte order
CopyBytes( &chByteOrder, 1 );
// copy type
int wkbType;
if ( chProps & SP_HASZVALUES )
wkbType = QGis::WKBMultiPoint25D;
else
wkbType = QGis::WKBMultiPoint;
CopyBytes( &wkbType, 4 );
// copy point count
CopyBytes( &iCount, 4 );
// copy points
for (iPoint = PointOffset(iFigure); iPoint < iNextPoint; iPoint++)
{
CopyPoint(iShape);
}
}
OGRPolygon* OGRMSSQLGeometryParser::ReadPolygon(int iShape)
{
int iFigure, iPoint, iNextPoint, i;
int iNextFigure = NextFigureOffset(iShape);
OGRPolygon* poPoly = new OGRPolygon();
for (iFigure = FigureOffset(iShape); iFigure < iNextFigure; iFigure++)
{
OGRLinearRing* poRing = new OGRLinearRing();
iPoint = PointOffset(iFigure);
iNextPoint = NextPointOffset(iFigure);
poRing->setNumPoints(iNextPoint - iPoint);
i = 0;
while (iPoint < iNextPoint)
{
if ( chProps & SP_HASZVALUES )
poRing->setPoint(i, ReadX(iPoint), ReadY(iPoint), ReadZ(iPoint) );
else
poRing->setPoint(i, ReadX(iPoint), ReadY(iPoint) );
++iPoint;
++i;
}
poPoly->addRingDirectly( poRing );
}
return poPoly;
}
mapnik::geometry::polygon<double> sqlserver_geometry_parser::ReadPolygon(int iShape)
{
mapnik::geometry::polygon<double> geom;
int iNextFigure = NextFigureOffset(iShape);
for (int iFigure = FigureOffset(iShape); iFigure < iNextFigure; iFigure++) {
mapnik::geometry::linear_ring<double> ring;
int iPoint = PointOffset(iFigure);
int iNextPoint = NextPointOffset(iFigure);
while (iPoint < iNextPoint) {
if (colType == Geography) {
ring.emplace_back(ReadY(iPoint), ReadX(iPoint));
} else {
ring.emplace_back(ReadX(iPoint), ReadY(iPoint));
}
++iPoint;
}
if (iFigure == 0) {
geom.set_exterior_ring(std::move(ring));
} else {
geom.add_hole(std::move(ring));
}
}
return geom;
}
mapnik::geometry::line_string<double> sqlserver_geometry_parser::ReadLineString(int iShape)
{
mapnik::geometry::line_string<double> geom;
int iFigure = FigureOffset(iShape);
int iPoint = PointOffset(iFigure);
int iNextPoint = NextPointOffset(iFigure);
while (iPoint < iNextPoint) {
if (colType == Geography) {
geom.emplace_back(ReadY(iPoint), ReadX(iPoint));
} else {
geom.emplace_back(ReadX(iPoint), ReadY(iPoint));
}
++iPoint;
}
return geom;
}
OGRMultiPoint* OGRMSSQLGeometryParser::ReadMultiPoint(int iShape)
{
int iFigure, iPoint, iNextPoint;
iFigure = FigureOffset(iShape);
OGRMultiPoint* poMultiPoint = new OGRMultiPoint();
iNextPoint = NextPointOffset(iFigure);
for (iPoint = PointOffset(iFigure); iPoint < iNextPoint; iPoint++)
{
OGRPoint* poPoint;
if ( chProps & SP_HASZVALUES )
poPoint = new OGRPoint( ReadX(iPoint), ReadY(iPoint), ReadZ(iPoint) );
else
poPoint = new OGRPoint( ReadX(iPoint), ReadY(iPoint) );
if ( poPoint )
poMultiPoint->addGeometryDirectly( poPoint );
}
return poMultiPoint;
}
void QgsMssqlGeometryParser::ReadPolygon( int iShape )
{
int iFigure, iPoint, iNextPoint, iCount, i;
int iNextFigure = NextFigureOffset( iShape );
iCount = iNextFigure - FigureOffset( iShape );
if ( iCount <= 0 )
return;
// copy byte order
CopyBytes( &chByteOrder, 1 );
// copy type
int wkbType;
if ( chProps & SP_HASZVALUES )
wkbType = QGis::WKBPolygon25D;
else
wkbType = QGis::WKBPolygon;
CopyBytes( &wkbType, 4 );
// copy ring count
CopyBytes( &iCount, 4 );
// copy rings
for ( iFigure = FigureOffset( iShape ); iFigure < iNextFigure; iFigure++ )
{
iPoint = PointOffset( iFigure );
iNextPoint = NextPointOffset( iFigure );
iCount = iNextPoint - iPoint;
if ( iCount <= 0 )
continue;
// copy point count
CopyBytes( &iCount, 4 );
// copy coordinates
i = 0;
while ( iPoint < iNextPoint )
{
CopyCoordinates( iPoint );
++iPoint;
++i;
}
}
}