public virtual void TestRussia()
{
string wktStr = ReadFirstLineFromRsrc("russia.wkt.txt");
//Russia exercises NtsGeometry fairly well because of these characteristics:
// * a MultiPolygon
// * crosses the dateline
// * has coordinates needing normalization (longitude +180.000xxx)
//TODO THE RUSSIA TEST DATA SET APPEARS CORRUPT
// But this test "works" anyhow, and exercises a ton.
//Unexplained holes revealed via KML export:
// TODO Test contains: 64°12'44.82"N 61°29'5.20"E
// 64.21245 61.48475
// FAILS
//AssertRelation(null,SpatialRelation.CONTAINS, shape, ctx.makePoint(61.48, 64.21));
NtsSpatialContextFactory factory = new NtsSpatialContextFactory();
factory.normWrapLongitude = true;
NtsSpatialContext ctx = (NtsSpatialContext)factory.NewSpatialContext();
IShape shape = ctx.ReadShapeFromWkt(wktStr);
//System.out.println("Russia Area: "+shape.getArea(ctx));
}
public virtual void TestPolygonRepair()
{
//because we're going to test validation
//System.setProperty(NtsGeometry.SYSPROP_ASSERT_VALIDATE, "false"); // TODO: Figure this out...
Environment.SetEnvironmentVariable(NtsGeometry.SYSPROP_ASSERT_VALIDATE, bool.FalseString);
//note: doesn't repair all cases; this case isn't:
//ctx.readShapeFromWkt("POLYGON((0 0, 10 0, 10 20))");//doesn't connect around
string wkt = "POLYGON((0 0, 10 0, 10 20, 5 -5, 0 20, 0 0))";//Topology self-intersect
NtsSpatialContextFactory factory = new NtsSpatialContextFactory();
factory.validationRule = ValidationRule.RepairBuffer0;
NtsSpatialContext ctx = (NtsSpatialContext)factory.NewSpatialContext(); // TODO: Can we remove this cast?
IShape buffer0 = ctx.ReadShapeFromWkt(wkt);
Assert.True(buffer0.GetArea(ctx) > 0);
factory = new NtsSpatialContextFactory();
factory.validationRule = ValidationRule.RepairConvexHull;
ctx = (NtsSpatialContext)factory.NewSpatialContext();
IShape cvxHull = ctx.ReadShapeFromWkt(wkt);
Assert.True(cvxHull.GetArea(ctx) > 0);
Assert.Equal(SpatialRelation.CONTAINS, cvxHull.Relate(buffer0));
factory = new NtsSpatialContextFactory();
factory.validationRule = ValidationRule.None;
ctx = (NtsSpatialContext)factory.NewSpatialContext();
ctx.ReadShapeFromWkt(wkt);//doesn't throw
}
public NtsWktShapeParser(NtsSpatialContext ctx, NtsSpatialContextFactory factory)
: base(ctx, factory)
{
this.m_ctx = ctx;
this.m_datelineRule = factory.datelineRule;
this.m_validationRule = factory.validationRule;
this.m_autoIndex = factory.autoIndex;
}
public NtsWKTReaderShapeParserTest()
{
NtsSpatialContextFactory factory = new NtsSpatialContextFactory();
factory.datelineRule = DatelineRule.CcwRect;
factory.wktShapeParserClass = typeof(NtsWKTReaderShapeParser);
ctx = factory.NewSpatialContext();
}
public virtual void TestFiji()
{
//Fiji is a group of islands crossing the dateline.
string wktStr = ReadFirstLineFromRsrc("fiji.wkt.txt");
NtsSpatialContextFactory factory = new NtsSpatialContextFactory();
factory.normWrapLongitude = true;
NtsSpatialContext ctx = (NtsSpatialContext)factory.NewSpatialContext();
IShape shape = ctx.ReadShapeFromWkt(wktStr);
AssertRelation(null, SpatialRelation.CONTAINS, shape,
ctx.MakePoint(-179.99, -16.9));
AssertRelation(null, SpatialRelation.CONTAINS, shape,
ctx.MakePoint(+179.99, -16.9));
Assert.True(shape.BoundingBox.Width < 5);//smart bbox
Console.WriteLine("Fiji Area: " + shape.GetArea(ctx));
}
//Note: Historically, the code here originated from the defunct NtsShapeReadWriter.
public NtsWKTReaderShapeParser(NtsSpatialContext ctx, NtsSpatialContextFactory factory)
: base(ctx, factory)
{
}
internal static bool once = false;//cheap way to test it was created
public CustomWktShapeParser(NtsSpatialContext ctx, NtsSpatialContextFactory factory)
: base(ctx, factory)
{
once = true;
}
public NtsBinaryCodec(NtsSpatialContext ctx, NtsSpatialContextFactory factory)
: base(ctx, factory)
{
//note: ctx.geometryFactory hasn't been set yet
useFloat = (factory.precisionModel.PrecisionModelType == PrecisionModels.FloatingSingle);
}
