// Define the model.
private void DefineModel(Model3DGroup group)
{
const int numTheta = 30;
const int numPhi = 15;
MeshGeometry3D mesh1 = new MeshGeometry3D();
Point3D center = new Point3D(0, 0, 1.75);
mesh1.AddTexturedSphere(center, 1.5, numTheta, numPhi, true);
group.Children.Add(mesh1.MakeModel("world.jpg"));
// Add a point to redefine the texture area to hide the "seam."
mesh1.Positions.Add(new Point3D());
mesh1.TextureCoordinates.Add(new Point(1.01, 1.01));
MeshGeometry3D mesh3 = new MeshGeometry3D();
center = new Point3D(0, 0, -1.75);
mesh3.AddTexturedSphere(center, 1.5, numTheta, numPhi, true);
mesh3.ApplyTransformation(D3.Rotate(D3.XVector(), center, 90));
group.Children.Add(mesh3.MakeModel("world.jpg"));
// Add a point to redefine the texture area to hide the "seam."
mesh3.Positions.Add(new Point3D());
mesh3.TextureCoordinates.Add(new Point(1.01, 1.01));
// Show the axes.
MeshExtensions.AddAxes(group);
}
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));
}
