public void Test_S2LaxPolygonShape_SingleLoopPolygon()
{
// Test S2Polygon constructor.
var vertices = ParsePointsOrDie("0:0, 0:1, 1:1, 1:0");
var shape = new S2LaxPolygonShape(new S2Polygon(new S2Loop(vertices)));
Assert.Equal(1, shape.NumLoops);
Assert.Equal(vertices.Count, shape.NumVertices);
Assert.Equal(vertices.Count, shape.NumLoopVertices(0));
Assert.Equal(vertices.Count, shape.NumEdges());
Assert.Equal(1, shape.NumChains());
Assert.Equal(0, shape.GetChain(0).Start);
Assert.Equal(vertices.Count, shape.GetChain(0).Length);
for (int i = 0; i < vertices.Count; ++i)
{
Assert.Equal(vertices[i], shape.LoopVertex(0, i));
var edge = shape.GetEdge(i);
Assert.Equal(vertices[i], edge.V0);
Assert.Equal(vertices[(i + 1) % vertices.Count], edge.V1);
Assert.Equal(edge.V0, shape.ChainEdge(0, i).V0);
Assert.Equal(edge.V1, shape.ChainEdge(0, i).V1);
}
Assert.Equal(2, shape.Dimension());
Assert.False(shape.IsEmpty());
Assert.False(shape.IsFull());
Assert.False(shape.ContainsBruteForce(S2.Origin));
TestEncodedS2LaxPolygonShape(shape);
}
public void Test_GetReferencePoint_InvertedLoops()
{
List <List <S2Point> > loops = new(){
ParsePointsOrDie("1:2, 1:1, 2:2"),
ParsePointsOrDie("3:4, 3:3, 4:4")
};
var shape = new S2LaxPolygonShape(loops);
Assert.True(shape.ContainsBruteForce(S2.Origin));
}
public void Test_S2LaxPolygonShape_InvertedLoops()
{
var loops = new List <List <S2Point> > {
ParsePointsOrDie("1:2, 1:1, 2:2"),
ParsePointsOrDie("3:4, 3:3, 4:4")
};
var shape = new S2LaxPolygonShape(loops);
Assert.True(shape.ContainsBruteForce(S2.Origin));
TestEncodedS2LaxPolygonShape(shape);
}
