public void TestPolygonDisjointIntersection()
{
var a = Read("POLYGON ((4 2, 6 2, 6 0, 4 0, 4 2))");
var b = Read("POINT (15 1)");
var expected = Read("POINT EMPTY");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestSimpleLineSymDifference()
{
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.SymDifference(a, b, 1));
}
public void TestLinePointSymDifference()
{
var a = Read("LINESTRING (1 1, 9 1)");
var b = Read("POINT (15 1)");
var expected = Read("GEOMETRYCOLLECTION (POINT (15 1), LINESTRING (1 1, 9 1))");
CheckEqual(expected, OverlayNGTest.SymDifference(a, b, 1));
}
public void TestPointLineIntersectionPrec()
{
var a = Read("POINT (10.1 10.4)");
var b = Read("LINESTRING (9.6 10, 20.1 19.6)");
var expected = Read("POINT EMPTY");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestLinePointInOutIntersection()
{
var a = Read("LINESTRING (1 1, 9 1)");
var b = Read("MULTIPOINT ((5 1), (15 1))");
var expected = Read("POINT (5 1)");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestSimpleLineIntersection()
{
var a = Read("LINESTRING (1 1, 9 1)");
var b = Read("POINT (5 1)");
var expected = Read("POINT (5 1)");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestLinestringEmptyPointUnion()
{
var a = Read("LINESTRING (10 10, 20 20)");
var b = Read("POINT EMPTY");
var expected = Read("LINESTRING (10 10, 20 20)");
var actual = OverlayNGTest.Union(a, b, 1);
CheckEqual(expected, actual);
}
public void TestSimpleSymDifference()
{
var a = Read("MULTIPOINT ((1 2), (1 1), (2 2), (2 1))");
var b = Read("MULTIPOINT ((2 2), (2 1), (3 2), (3 1))");
var expected = Read("MULTIPOINT ((1 2), (1 1), (3 2), (3 1))");
CheckEqual(expected, OverlayNGTest.SymDifference(a, b, 1));
}
public void TestEmptyInputUUnion()
{
var a = Read("MULTIPOINT ((1 1), (3 1))");
var b = Read("POINT EMPTY");
var expected = Read("MULTIPOINT ((1 1), (3 1))");
CheckEqual(expected, OverlayNGTest.Union(a, b, 1));
}
public void TestSimpleIntersection()
{
var a = Read("MULTIPOINT ((1 1), (2 1))");
var b = Read("POINT (2 1)");
var expected = Read("POINT (2 1)");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestDisjointPointsRoundedIntersection()
{
var a = Read("POINT (10.1 10)");
var b = Read("POINT (10 10.1)");
var expected = Read("POINT (10 10)");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestSimpleFloatUnion()
{
var a = Read("MULTIPOINT ((1 1), (1.5 1.1), (2 1), (2.1 1.1))");
var b = Read("MULTIPOINT ((1.5 1.1), (2 1), (2 1.2))");
var expected = Read("MULTIPOINT ((1 1), (1.5 1.1), (2 1), (2 1.2), (2.1 1.1))");
CheckEqual(expected, OverlayNGTest.Union(a, b));
}
public void TestDisjointLinesRoundedIntersection()
{
var a = Read("LINESTRING (3 2, 3 4)");
var b = Read("LINESTRING (1.1 1.6, 3.8 1.9)");
var expected = Read("POINT (3 2)");
CheckEqual(expected, OverlayNGTest.Intersection(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));
}
public void TestRoundedBoxesIntersection()
{
var a = Read("POLYGON ((0.6 0.1, 0.6 1.9, 2.9 1.9, 2.9 0.1, 0.6 0.1))");
var b = Read("POLYGON ((1.1 3.9, 2.9 3.9, 2.9 2.1, 1.1 2.1, 1.1 3.9))");
var expected = Read("LINESTRING (1 2, 3 2)");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestTriangleFillingHoleUnionPrec10()
{
var a = Read("POLYGON ((0 0, 4 0, 4 4, 0 4, 0 0), (1 1, 1 2, 2 1, 1 1), (1 2, 1 3, 2 3, 1 2), (2 3, 3 3, 3 2, 2 3))");
var b = Read("POLYGON ((2 1, 3 1, 3 2, 2 1))");
var expected = Read("POLYGON ((0 0, 0 4, 4 4, 4 0, 0 0), (1 2, 1 1, 2 1, 1 2), (2 3, 1 3, 1 2, 2 3), (3 2, 3 3, 2 3, 3 2))");
CheckEqual(expected, OverlayNGTest.Union(a, b, 10));
}
public void TestBoxHoleCollapseAlongBEdgeUnion()
{
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 ((0 0, 0 3, 3 3, 3 0, 2 0, 1 0, 0 0))");
CheckEqual(expected, OverlayNGTest.Union(b, a, 1));
}
public void TestPolyPolyTouchIntersection()
{
var a = Read("POLYGON ((300 0, 100 0, 100 100, 300 100, 300 0))");
var b = Read("POLYGON ((100 200, 300 200, 300 100, 200 100, 200 0, 100 0, 100 200))");
var expected = Read("GEOMETRYCOLLECTION (LINESTRING (200 100, 300 100), POLYGON ((200 0, 100 0, 100 100, 200 100, 200 0)))");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestParallelSpikes()
{
var a = Read("POLYGON ((1 3.3, 1.3 1.4, 3.1 1.4, 3.1 0.9, 1.3 0.9, 1 -0.2, 0.8 1.3, 1 3.3))");
var b = Read("POLYGON ((1 2.9, 2.9 2.9, 2.9 1.3, 1.7 1, 1.3 0.9, 1 0.4, 1 2.9))");
var expected = Read("POLYGON EMPTY");
CheckEqual(expected, OverlayNGTest.Intersection(a, b, 1));
}
public void TestCollapseBoxTriangleUnion()
{
var a = Read("POLYGON ((10 10, 100 10, 10 11, 10 10))");
var b = Read("POLYGON ((90 0, 200 0, 200 200, 90 200, 90 0))");
var expected = Read("MULTIPOLYGON (((90 10, 10 10, 10 11, 90 10)), ((90 10, 90 200, 200 200, 200 0, 90 0, 90 10)))");
CheckEqual(expected, OverlayNGTest.Union(a, b, 1));
}
public static Geometry Intersection(Geometry a, Geometry b, double scaleFactor)
{
return(OverlayNGTest.Intersection(a, b, scaleFactor));
}