public void testFaces()
{
IDictionary <S2Point, int> edgeCounts = new Dictionary <S2Point, int>();
IDictionary <S2Point, int> vertexCounts = new Dictionary <S2Point, int>();
for (var face = 0; face < 6; ++face)
{
var id = S2CellId.FromFacePosLevel(face, 0, 0);
var cell = new S2Cell(id);
JavaAssert.Equal(cell.Id, id);
JavaAssert.Equal(cell.Face, face);
JavaAssert.Equal(cell.Level, 0);
// Top-level faces have alternating orientations to get RHS coordinates.
JavaAssert.Equal(cell.Orientation, face & S2.SwapMask);
Assert.True(!cell.IsLeaf);
for (var k = 0; k < 4; ++k)
{
if (edgeCounts.ContainsKey(cell.GetEdgeRaw(k)))
{
edgeCounts[cell.GetEdgeRaw(k)] = edgeCounts[cell
.GetEdgeRaw(k)] + 1;
}
else
{
edgeCounts[cell.GetEdgeRaw(k)] = 1;
}
if (vertexCounts.ContainsKey(cell.GetVertexRaw(k)))
{
vertexCounts[cell.GetVertexRaw(k)] = vertexCounts[cell
.GetVertexRaw(k)] + 1;
}
else
{
vertexCounts[cell.GetVertexRaw(k)] = 1;
}
assertDoubleNear(cell.GetVertexRaw(k).DotProd(cell.GetEdgeRaw(k)), 0);
assertDoubleNear(cell.GetVertexRaw((k + 1) & 3).DotProd(
cell.GetEdgeRaw(k)), 0);
assertDoubleNear(S2Point.Normalize(
S2Point.CrossProd(cell.GetVertexRaw(k), cell
.GetVertexRaw((k + 1) & 3))).DotProd(cell.GetEdge(k)), 1.0);
}
}
// Check that edges have multiplicity 2 and vertices have multiplicity 3.
foreach (var i in edgeCounts.Values)
{
JavaAssert.Equal(i, 2);
}
foreach (var i in vertexCounts.Values)
{
JavaAssert.Equal(i, 3);
}
}
public void testFaces()
{
IDictionary<S2Point, int> edgeCounts = new Dictionary<S2Point, int>();
IDictionary<S2Point, int> vertexCounts = new Dictionary<S2Point, int>();
for (var face = 0; face < 6; ++face)
{
var id = S2CellId.FromFacePosLevel(face, 0, 0);
var cell = new S2Cell(id);
JavaAssert.Equal(cell.Id, id);
JavaAssert.Equal(cell.Face, face);
JavaAssert.Equal(cell.Level, 0);
// Top-level faces have alternating orientations to get RHS coordinates.
JavaAssert.Equal(cell.Orientation, face & S2.SwapMask);
Assert.True(!cell.IsLeaf);
for (var k = 0; k < 4; ++k)
{
if (edgeCounts.ContainsKey(cell.GetEdgeRaw(k)))
{
edgeCounts[cell.GetEdgeRaw(k)] = edgeCounts[cell
.GetEdgeRaw(k)] + 1;
}
else
{
edgeCounts[cell.GetEdgeRaw(k)] = 1;
}
if (vertexCounts.ContainsKey(cell.GetVertexRaw(k)))
{
vertexCounts[cell.GetVertexRaw(k)] = vertexCounts[cell
.GetVertexRaw(k)] + 1;
}
else
{
vertexCounts[cell.GetVertexRaw(k)] = 1;
}
assertDoubleNear(cell.GetVertexRaw(k).DotProd(cell.GetEdgeRaw(k)), 0);
assertDoubleNear(cell.GetVertexRaw((k + 1) & 3).DotProd(
cell.GetEdgeRaw(k)), 0);
assertDoubleNear(S2Point.Normalize(
S2Point.CrossProd(cell.GetVertexRaw(k), cell
.GetVertexRaw((k + 1) & 3))).DotProd(cell.GetEdge(k)), 1.0);
}
}
// Check that edges have multiplicity 2 and vertices have multiplicity 3.
foreach (var i in edgeCounts.Values)
{
JavaAssert.Equal(i, 2);
}
foreach (var i in vertexCounts.Values)
{
JavaAssert.Equal(i, 3);
}
}