Re: [jts-dev] Remove line from within another line

["Simon (SPDBA) Greener" <simon@xxxxxxxxxxxx>]

Martin,

> This seems like surprising behaviour.  

Boundary vs interior?

> Do you have an example showing this?

Here is an example (image attached):

public static void Dissolve()
{
int _numDecPlaces = 2;
try
{
double scale = Math.pow(10, _numDecPlaces);
PrecisionModel pm = new PrecisionModel(scale);

WKTReader wktr = new WKTReader();
Geometry line1 = wktr.read("LINESTRING (548845.37 3956342.94, 548840.24 3956243.07, 548861.63 3956241.98, 548881.28 3956242.9, 548900.36 3956247.66, 548918.14 3956256.06, 548933.94 3956267.77, 548947.13 3956282.36, 548957.22 3956299.24, 548963.81 3956317.77, 548966.65 3956337.23, 548965.62 3956356.87, 548960.77 3956375.93, 548952.28 3956393.67, 548940.48 3956409.4, 548925.83 3956422.53, 548825.48 3956496.01,548766.41 3956415.33, 548866.75 3956341.84, 548845.37 3956342.94)");
Geometry line2 = wktr.read("LINESTRING (548845.371 3956342.942, 548866.753 3956341.844, 548766.411 3956415.332)");

line1 = GeometryPrecisionReducer.reduce(line1,pm);
line2 = GeometryPrecisionReducer.reduce(line2,pm);
Geometry rLine = line1.difference(line2);

WKTWriter wktw = new WKTWriter(2);
String rLineWkt = wktw.write(rLine);
System.out.println(rLineWkt);

} catch (Exception e) {
}
}

regards

Simon

--

Regards

Simon

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