public final Geometry edit(Geometry geometry, GeometryFactory factory) {
if (geometry instanceof LinearRing) {
return factory.createLinearRing(edit(geometry.getCoordinates(), geometry));
}
if (geometry instanceof LineString) {
return factory.createLineString(edit(geometry.getCoordinates(), geometry));
}
if (geometry instanceof Point) {
Coordinate[] newCoordinates = edit(geometry.getCoordinates(), geometry);
return factory.createPoint((newCoordinates.length > 0) ? newCoordinates[0] : null);
}
return geometry;
}
/**
* Returns: <br>
* 2 for 2d (default) <br>
* 4 for 3d - one of the oordinates has a non-NaN z value <br>
* (3 is for x,y,m but thats not supported yet) <br>
*
* @param g geometry to test - looks at 1st coordinate
*/
public int guessCoorinateDims(Geometry g) {
Coordinate[] cs = g.getCoordinates();
for (int t = 0; t < cs.length; t++) {
if (!(Double.isNaN(cs[t].z))) {
return 4;
}
}
return 2;
}
public void write(Geometry geometry, EndianDataOutputStream file) throws IOException {
if (geometry.isEmpty()) {
file.writeIntLE(0);
return;
}
file.writeIntLE(getShapeType());
Coordinate c = geometry.getCoordinates()[0];
file.writeDoubleLE(c.x);
file.writeDoubleLE(c.y);
if (myShapeType == 11) {
if (Double.isNaN(c.z)) // nan means not defined
file.writeDoubleLE(0.0);
else file.writeDoubleLE(c.z);
}
if ((myShapeType == 11) || (myShapeType == 21)) {
file.writeDoubleLE(-10E40); // M
}
}
