public static Shape Rectangle(Vector3D size)
{
Shape s = new Shape();
Mesh m = s.CreateConvex();
Face f = m.CreateFace(4);
Vector3D halfsize = size*0.5;
f.Vertices[0].Pos = new Point3D(-halfsize.X, -halfsize.Y, 0);
f.Vertices[1].Pos = new Point3D(-halfsize.X, halfsize.Y, 0);
f.Vertices[2].Pos = new Point3D( halfsize.X, halfsize.Y, 0);
f.Vertices[3].Pos = new Point3D( halfsize.X, -halfsize.Y, 0);
return s;
}
private void runTestButtonClick(object sender, RoutedEventArgs e)
{
mainViewport.Children.Clear();
blacklines.Points.Clear();
redlines.Points.Clear();
//create new buffers for lines
blacklines.Color = Colors.Black;
redlines.Color = Colors.Red;
redlines.Thickness = 4;
resultBox.Text = "Testing...\n";
try
{
Shapes.Shape s = Shapes.Primitives.Rectangle(new Vector3D(1, 2, 0));
//create the main scene
MeshGeometry3D triangleMesh = new MeshGeometry3D();
s.BuildMeshGeometry3D(triangleMesh);
Color c = Colors.Blue;
c.A = 100;
Material material = new DiffuseMaterial(new SolidColorBrush(c));
GeometryModel3D triangleModel = new GeometryModel3D(triangleMesh, material);
ModelVisual3D model = new ModelVisual3D();
model.Content = triangleModel;
//if (ShowFaces)
mainViewport.Children.Add(model);
//if (ShowConvexes)
s.BuildScreenSpaceLines(redlines);
resultBox.Text += "Done\n";
}
catch (System.ApplicationException ex)
{
resultBox.Text += ex.Message + "\n";
}
finally
{
mainViewport.Children.Add(redlines);
mainViewport.Children.Add(blacklines);
}
}
public Shape Copy()
{
//create a new shape and copy the vertices
Shape shape = new Shape();
foreach (Vertex v in Vertices)
{
Vertex copy = shape.CreateVertex();
copy.Pos = v.Pos;
}
//put new vertices in a quick look up table
Vertex[] newverts = shape.Vertices.ToArray();
//go over each convex
foreach (Mesh c in Convexes)
{
//create a new convex in the new shape
Mesh convexcopy = shape.CreateConvex();
//copy edges
foreach (Edge e in c.Edges)
{
//create the edge and use look up table to build new vertex list
Edge edgecopy = convexcopy.CreateEdge();
edgecopy.Vertices = e.Vertices.Select(a => newverts[a.Idx]).ToArray();
//add this edge to each of the vertices it uses
foreach (Vertex v in edgecopy.Vertices)
v.OwnerEdges.Add(edgecopy);
}
//build look up table for the edges
Edge[] newedges = convexcopy.Edges.ToArray();
//copy faces
foreach (Face f in c.Faces)
{
//create the face and use look up tables to build new vertex/edge list
Face facecopy = convexcopy.CreateFace();
facecopy.Vertices = f.Vertices.Select(a => newverts[a.Idx]).ToList();
facecopy.Edges = f.Edges.Select(a => newedges[a.Idx]).ToList();
//add this face to each of the vertices it uses
foreach (Vertex v in facecopy.Vertices)
v.OwnerFaces.Add(facecopy);
//add this face to each of the edges it uses
foreach (Edge e in facecopy.Edges)
e.OwnerFaces.Add(facecopy);
}
}
return shape;
}
