private int calculateSize(Geometry geom, boolean includeSrid) {
int size = 1 + ByteBuffer.UINT_SIZE; // size for order byte + type field
if (geom.getSRID() > 0 && includeSrid) size += 4;
if (geom instanceof GeometryCollection) {
size += sizeOfGeometryCollection((GeometryCollection) geom);
} else if (geom instanceof Polygon) {
size += getPolygonSize((Polygon) geom);
} else if (geom instanceof Point) {
size += getPointByteSize(geom);
} else if (geom instanceof PolyHedralSurface) {
size += getPolyHedralSurfaceSize((PolyHedralSurface) geom);
} else {
size += ByteBuffer.UINT_SIZE; // to hold number of points
size += getPointByteSize(geom) * geom.getNumPoints();
}
return size;
}
