public static void AddZAxis(Model3DGroup group,
double length = 4, double thickness = 0.1)
{
MeshGeometry3D mesh = new MeshGeometry3D();
Point3D origin = D3.Origin -
D3.XVector(thickness / 2) -
D3.YVector(thickness / 2) -
D3.ZVector(thickness / 2);
mesh.AddBox(origin,
D3.XVector(thickness), D3.YVector(thickness), D3.ZVector(length));
group.Children.Add(mesh.MakeModel(Brushes.Blue));
}
// Make a cube at the origin.
public static void AddOrigin(Model3DGroup group,
double cubeThickness = 0.102)
{
MeshGeometry3D mesh = new MeshGeometry3D();
Point3D origin = D3.Origin -
D3.XVector(cubeThickness / 2) -
D3.YVector(cubeThickness / 2) -
D3.ZVector(cubeThickness / 2);
mesh.AddBox(origin,
D3.XVector(cubeThickness),
D3.YVector(cubeThickness),
D3.ZVector(cubeThickness));
group.Children.Add(mesh.MakeModel(Brushes.Black));
}
// Define the model.
private void DefineModel(Model3DGroup group)
{
// Axes.
MeshExtensions.AddAxes(group);
MeshGeometry3D mesh1 = new MeshGeometry3D();
MeshGeometry3D mesh2 = new MeshGeometry3D();
MeshGeometry3D mesh3 = new MeshGeometry3D();
MeshGeometry3D mesh4 = new MeshGeometry3D();
double x0 = -5;
Point3D center = new Point3D(x0, 0, 4.5);
// Box.
mesh1.AddBox(center + new Vector3D(-0.5, 0, -1),
D3.XVector(1), D3.YVector(3), D3.ZVector(2));
center.X += 2;
// Box wrapped.
mesh2.AddBoxWrapped(center + new Vector3D(-0.5, 0, -1),
D3.XVector(1), D3.YVector(3), D3.ZVector(2));
center.X += 2;
// Cone.
Point3D[] circle = G3.MakePolygonPoints(20, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddCone(center, circle, D3.YVector(4));
center.X += 2;
// Cone frustum.
circle = G3.MakePolygonPoints(20, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddConeFrustum(center, circle, D3.YVector(4), 3);
center.X += 2;
// Cone frustum w/cutting plane.
circle = G3.MakePolygonPoints(20, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddConeFrustum(center, circle, D3.YVector(4),
center + new Vector3D(0, 2, 0), new Vector3D(0, 1, 1));
center.X += 2;
// Start a new row.
center.X = x0;
center.Z -= 3;
// Cube.
MeshGeometry3D cubeMesh = new MeshGeometry3D();
cubeMesh.AddCube();
cubeMesh.ApplyTransformation(new ScaleTransform3D(1, 1.5, 0.5));
cubeMesh.ApplyTransformation(
new TranslateTransform3D(center.X, center.Y + 1.5, 0));
mesh3.Merge(cubeMesh);
center.X += 2;
// Cylinder.
Point3D[] polygon = G3.MakePolygonPoints(7, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddCylinder(polygon, new Vector3D(0, 2, -1));
center.X += 2;
// Cylinder.
circle = G3.MakePolygonPoints(20, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddCylinder(circle, new Vector3D(0, 2, -1), true);
center.X += 2;
// Cylinder w/cutting planes.
polygon = G3.MakePolygonPoints(7, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddCylinder(polygon, new Vector3D(0, 1, 0),
center + new Vector3D(0, 2, 0), new Vector3D(0, 2, 1),
center + new Vector3D(0, -2, 0), new Vector3D(0, 2, -1));
center.X += 2;
// Cylinder w/cutting planes.
polygon = G3.MakePolygonPoints(7, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddCylinder(polygon, new Vector3D(0, 1, 0),
center + new Vector3D(0, 2, 0), new Vector3D(0, 2, 1),
center + new Vector3D(0, -2, 0), new Vector3D(0, 2, -1), true);
center.X += 2;
// Start a new row.
center.X = x0;
center.Z -= 3;
// Dodecahedron.
MeshGeometry3D dodMesh = new MeshGeometry3D();
dodMesh.AddDodecahedron();
double dodScale = 1 / G3.DodecahedronCircumradius();
dodMesh.ApplyTransformation(new ScaleTransform3D(dodScale, dodScale, dodScale));
dodMesh.ApplyTransformation(
new TranslateTransform3D(center.X, center.Y + 0.5, center.Z));
mesh3.Merge(dodMesh);
center.X += 2;
// Frustum.
polygon = G3.MakePolygonPoints(5, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddFrustum(center, polygon, D3.YVector(4), 2);
center.X += 2;
// Icosahedron.
MeshGeometry3D icoMesh = new MeshGeometry3D();
icoMesh.AddIcosahedron();
double icoScale = 1 / G3.IcosahedronCircumradius();
icoMesh.ApplyTransformation(new ScaleTransform3D(icoScale, icoScale, icoScale));
icoMesh.ApplyTransformation(
new TranslateTransform3D(center.X, center.Y + 0.5, center.Z));
mesh3.Merge(icoMesh);
center.X += 2;
// Octahedron.
MeshGeometry3D octMesh = new MeshGeometry3D();
octMesh.AddOctahedron();
double octScale = 1 / G3.OctahedronCircumradius();
octMesh.ApplyTransformation(new ScaleTransform3D(octScale, octScale, octScale));
octMesh.ApplyTransformation(
new TranslateTransform3D(center.X, center.Y + 0.5, center.Z));
mesh3.Merge(octMesh);
center.X += 2;
// Pyramid.
polygon = G3.MakePolygonPoints(6, center, D3.XVector(1), D3.ZVector(-1));
mesh1.AddPyramid(center, polygon, D3.YVector(3));
center.X += 2;
// Start a new row.
center.X = x0;
center.Z -= 3;
// Sphere.
mesh1.AddSphere(center + new Vector3D(0, 1, 0), 1, 20, 10);
center.X += 2;
// Tetrahedron.
MeshGeometry3D tetMesh = new MeshGeometry3D();
tetMesh.AddTetrahedron();
double tetScale = 1 / G3.TetrahedronCircumradius();
tetMesh.ApplyTransformation(new ScaleTransform3D(tetScale, tetScale, tetScale));
tetMesh.ApplyTransformation(
new TranslateTransform3D(center.X, center.Y + 0.5, center.Z));
mesh3.Merge(tetMesh);
center.X += 2;
// Textured sphere.
mesh4.Positions.Add(new Point3D());
mesh4.TextureCoordinates.Add(new Point(1.01, 1.01));
mesh4.AddTexturedSphere(center + new Vector3D(0, 1, 0), 1, 20, 10);
center.X += 2;
// Textured torus.
mesh4.AddTexturedTorus(center + new Vector3D(0, 1, 0), 0.6, 0.4, 30, 15);
center.X += 2;
// Torus.
mesh1.AddTorus(center + new Vector3D(0, 1, 0), 0.6, 0.4, 30, 15);
center.X += 2;
// Start a new row.
center.X = x0;
center.Z -= 3;
group.Children.Add(mesh1.MakeModel(Brushes.LightGreen));
group.Children.Add(mesh2.MakeModel("wrapper.png"));
group.Children.Add(mesh3.MakeModel(Brushes.LightBlue));
group.Children.Add(mesh4.MakeModel("world.jpg"));
}