public void TestSimpleLineDifference()
{
var a = Read("LINESTRING (1 1, 9 1)");
var b = Read("POINT (5 1)");
var expected = Read("LINESTRING (1 1, 9 1)");
CheckEqual(expected, OverlayNGTest.Difference(a, b, 1));
}
public void TestBoxHoleCollapseAlongBEdgeDifference()
{
var a = Read("POLYGON ((0 3, 3 3, 3 0, 0 0, 0 3), (1 1.2, 1 1.1, 2.3 1.1, 1 1.2))");
var b = Read("POLYGON ((1 1, 2 1, 2 0, 1 0, 1 1))");
var expected = Read("POLYGON EMPTY");
CheckEqual(expected, OverlayNGTest.Difference(b, a, 1));
}
public void TestSimpleDifference()
{
var a = Read("MULTIPOINT ((1 1), (2 1))");
var b = Read("POINT (2 1)");
var expected = Read("POINT (1 1)");
CheckEqual(expected, OverlayNGTest.Difference(a, b, 1));
}
public void TestEmptyDifference()
{
var a = Read("MULTIPOINT ((1 1), (3 1))");
var b = Read("MULTIPOINT ((1 1), (2 1), (3 1))");
var expected = Read("POINT EMPTY");
CheckEqual(expected, OverlayNGTest.Difference(a, b, 1));
}