static void TestMeshWithHole()
{
int width = 3;
int verticesPerRow = width + 1;
Func <int, int, int> VertIdx = (x, y) => verticesPerRow * y + x;
List <Vec3f> vertices = new List <Vec3f>();
List <int> indices = new List <int>();
for (int y = 0; y < verticesPerRow; ++y)
{
for (int x = 0; x < verticesPerRow; ++x)
{
Vec3f v = new Vec3f();
v.x = x;
v.y = y;
v.z = 0;
vertices.Add(v);
}
}
for (int y = 0; y < width; ++y)
{
for (int x = 0; x < width; ++x)
{
if (x == 1 && y == 1)
{
// Make a hole
continue;
}
indices.Add(VertIdx(x, y));
indices.Add(VertIdx(x + 1, y));
indices.Add(VertIdx(x + 1, y + 1));
indices.Add(VertIdx(x, y));
indices.Add(VertIdx(x + 1, y + 1));
indices.Add(VertIdx(x, y + 1));
}
}
MeshSimplifier m = new MeshSimplifier(vertices.ToArray(), indices.ToArray());
m.SaveToObj("out_full.obj");
Console.WriteLine("Triangle count: {0}", m.Edges.Length / 3);
m.Simplify();
m.SaveToObj("out_simple.obj");
m.Compact();
Console.WriteLine("Triangle count: {0}", m.Edges.Length / 3);
Console.Write("\nPress any key to continue ... ");
Console.ReadKey();
}
static void TestMesh()
{
int width = 16;
int verticesPerRow = width + 1;
Func <int, int, int> VertIdx = (x, y) => verticesPerRow * y + x;
List <Vec3f> vertices = new List <Vec3f>();
List <int> indices = new List <int>();
for (int y = 0; y < verticesPerRow; ++y)
{
for (int x = 0; x < verticesPerRow; ++x)
{
Vec3f v = new Vec3f();
v.x = x;
v.y = y;
v.z = 0;
vertices.Add(v);
}
}
for (int y = 0; y < width; ++y)
{
for (int x = 0; x < width; ++x)
{
indices.Add(VertIdx(x, y));
indices.Add(VertIdx(x + 1, y));
indices.Add(VertIdx(x + 1, y + 1));
indices.Add(VertIdx(x, y));
indices.Add(VertIdx(x + 1, y + 1));
indices.Add(VertIdx(x, y + 1));
}
}
MeshSimplifier m = new MeshSimplifier(vertices.ToArray(), indices.ToArray());
m.SaveToObj("out_full.obj");
int triangleCount = 0;
for (int i = 0; i < m.Edges.Length; i += 3)
{
if (m.Edges[i].vertexIdx >= 0)
{
triangleCount++;
}
else
{
Console.WriteLine("Bad edge at index: {0}", i);
}
}
m.Compact();
Console.WriteLine("Triangle count: {0}", triangleCount);
m.Simplify();
triangleCount = 0;
for (int i = 0; i < m.Edges.Length; i += 3)
{
if (m.Edges[i].vertexIdx >= 0)
{
triangleCount++;
for (int j = 0; j < 3; ++j)
{
Vec3f p = m.Points[m.Edges[i + j].vertexIdx];
Console.WriteLine("<{0}, {1}, {2}>", p.x, p.y, p.z);
}
Console.WriteLine();
}
}
m.SaveToObj("out_simple.obj");
m.Compact();
Console.WriteLine("Triangle count: {0}", triangleCount);
Console.Write("\nPress any key to continue ... ");
Console.ReadKey();
}
