// Define the model.
private void DefineModel(Model3DGroup group)
{
// Define a polygon in the XZ plane.
Point3D center = new Point3D(0, 0, 4.5);
Point3D[] polygon = G3.MakePolygonPoints(6, center,
new Vector3D(1, 0, 0), new Vector3D(0, 0, -1));
// Make a transform to move the polygon in the -Z direction.
TranslateTransform3D translate = new TranslateTransform3D(0, 0, -3);
// Make a right cone.
MeshGeometry3D mesh1 = new MeshGeometry3D();
mesh1.AddCone(center, polygon, new Vector3D(0, 3, 0));
group.Children.Add(mesh1.MakeModel(Brushes.Pink));
// Make a skewed cone.
translate.Transform(polygon);
center = translate.Transform(center);
MeshGeometry3D mesh2 = new MeshGeometry3D();
mesh2.AddCone(center, polygon, new Vector3D(0, 3, 2));
group.Children.Add(mesh2.MakeModel(Brushes.LightBlue));
// Make a conic frustum with cutting plane parallel to the base.
translate.Transform(polygon);
center = translate.Transform(center);
MeshGeometry3D mesh3 = new MeshGeometry3D();
mesh3.AddConeFrustum(center, polygon, new Vector3D(0, 4, 0), 2);
group.Children.Add(mesh3.MakeModel(Brushes.LightGreen));
// Make a conic frustum with cutting plane not parallel to the base.
translate.Transform(polygon);
center = translate.Transform(center);
MeshGeometry3D mesh4 = new MeshGeometry3D();
Point3D planePt = center + new Vector3D(0, 2, 0);
Vector3D planeN = new Vector3D(1, 1, 1);
mesh4.AddConeFrustum(center, polygon, new Vector3D(0, 4, 0), planePt, planeN);
group.Children.Add(mesh4.MakeModel(Brushes.Orange));
// Show the axes.
MeshExtensions.AddAxes(group);
}
// 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"));
}
// Add the model to the Model3DGroup.
private void DefineModel(Model3DGroup model_group)
{
// Make the normal and selected materials.
NormalMaterial = new DiffuseMaterial(Brushes.LightGreen);
SelectedMaterial = new DiffuseMaterial(Brushes.Red);
// Create some cubes.
for (int x = -5; x <= 3; x += 4)
{
for (int y = -5; y <= 3; y += 4)
{
for (int z = -5; z <= 3; z += 4)
{
// Make a cube with lower left corner (x, y, z).
MeshGeometry3D mesh = new MeshGeometry3D();
mesh.AddBox(x, y, z, 2, 2, 2);
GeometryModel3D model = new GeometryModel3D(mesh, NormalMaterial);
model_group.Children.Add(model);
// Remember that this model is selectable.
SelectableModels.Add(model);
}
}
}
// test cage adding
MeshGeometry3D cagemesh = new MeshGeometry3D();
cagemesh.AddCage(5, 5, 5, 2, 2, 2, 0.05);
var cagemodel = new GeometryModel3D(cagemesh, NormalMaterial);
model_group.Children.Add(cagemodel);
SelectableModels.Add(cagemodel);
// test cylinder adding
MeshGeometry3D cylindermesh = new MeshGeometry3D();
cylindermesh.AddSmoothCylinder(new Point3D(7, 7, 7), new Vector3D(1, 1, 1), 0.5, 20);
var cylindermodel = new GeometryModel3D(cylindermesh, NormalMaterial);
model_group.Children.Add(cylindermodel);
SelectableModels.Add(cylindermodel);
// test sphere adding
MeshGeometry3D spheremesh = new MeshGeometry3D();
spheremesh.AddSmoothSphere(new Point3D(8.5, 8.5, 8.5), Math.Sqrt(3 * 0.5 + 0.5 * 0.5), 20, 40);
var spheremodel = new GeometryModel3D(spheremesh, NormalMaterial);
model_group.Children.Add(spheremodel);
SelectableModels.Add(spheremodel);
// add cone
MeshGeometry3D conemesh = new MeshGeometry3D();
conemesh.AddCone(new Point3D(9, 9, 9), new Vector3D(1, 1, 1), 0.5, -0.2, 20);
var conemodel = new GeometryModel3D(conemesh, NormalMaterial);
model_group.Children.Add(conemodel);
SelectableModels.Add(conemodel);
// X axis.
MeshGeometry3D mesh_x = MeshExtensions.XAxisArrow(1, 7);
model_group.Children.Add(mesh_x.SetMaterial(Brushes.Red, false));
var forwardmodel = "前方".To3DLabel(new Point3D(8.5, 0.5, 0), new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), Brushes.Red, 0.5);
model_group.Children.Add(forwardmodel);
// Y axis.
MeshGeometry3D mesh_y = MeshExtensions.YAxisArrow(1, 7);
model_group.Children.Add(mesh_y.SetMaterial(Brushes.Green, false));
var upmodel = "上方".To3DLabel(new Point3D(0, 8.5, 0), new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), Brushes.Green, 0.5);
model_group.Children.Add(upmodel);
// Z axis.
MeshGeometry3D mesh_z = MeshExtensions.ZAxisArrow(1, 7);
model_group.Children.Add(mesh_z.SetMaterial(Brushes.Blue, false));
var rightmodel = "右方".To3DLabel(new Point3D(0, 0, 9), new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), Brushes.Blue, 0.5);
model_group.Children.Add(rightmodel);
}