/// Make the ground mesh.
void MakeGround(double groundY)
{
MeshGeometry3D groundMesh = new MeshGeometry3D();
const double dx = 15;
const double dy = 1;
const double dz = dx;
Point3D corner = new Point3D(-dx / 2, groundY - dy, -dz / 2);
groundMesh.AddBoxWrapped(corner, D3.XVector(dx), D3.YVector(dy), D3.ZVector(dz));
Point[] topCoords =
{
new Point(0.1, 0.1),
new Point(0.1, 0.9),
new Point(0.9, 0.9),
new Point(0.9, 0.1),
};
Point[] frontCoords =
{
new Point(0.0, 0.1),
new Point(0.0, 0.9),
new Point(0.1, 0.9),
new Point(0.1, 0.1),
};
Point[] leftCoords =
{
new Point(0.9, 0.0),
new Point(0.1, 0.0),
new Point(0.1, 0.1),
new Point(0.9, 0.1),
};
Point[] rightCoords =
{
new Point(0.1, 1.0),
new Point(0.9, 1.0),
new Point(0.9, 0.9),
new Point(0.1, 0.9),
};
Point[] backCoords =
{
new Point(1.0, 0.9),
new Point(1.0, 0.1),
new Point(0.9, 0.1),
new Point(0.9, 0.9),
};
Point[] bottomCoords =
{
new Point(0.9, 0.1),
new Point(0.9, 0.9),
new Point(0.1, 0.9),
new Point(0.1, 0.1),
};
groundMesh.AddBox(corner, D3.XVector(dx), D3.YVector(dy), D3.ZVector(dz),
frontCoords, leftCoords, rightCoords, backCoords, topCoords, bottomCoords);
_group.Children.Add(groundMesh.MakeModel(System.IO.Path.Combine(_resDir, @"rock.jpg")));
}
// Define the model.
private void DefineModel(Model3DGroup group)
{
// Make a box.
MeshGeometry3D mesh1 = new MeshGeometry3D();
mesh1.AddBox(new Point3D(1, -1, 0),
D3.XVector(2), D3.YVector(2), D3.ZVector(2),
D3.UnitTextures);
group.Children.Add(mesh1.MakeModel("wood.jpg"));
// Make a cube with every face different.
MeshGeometry3D mesh2 = new MeshGeometry3D();
Point[][] textureCoords = D3.SectionTextureCoords(2, 3);
mesh2.AddBox(new Point3D(0, 1, -2),
D3.XVector(2), D3.YVector(2), D3.ZVector(2),
textureCoords[0], textureCoords[1], textureCoords[2],
textureCoords[3], textureCoords[4], textureCoords[5]);
group.Children.Add(mesh2.MakeModel("all.jpg"));
// Make a green parallelepiped.
MeshGeometry3D mesh3 = new MeshGeometry3D();
mesh3.AddBox(new Point3D(-4, -1, -3),
new Vector3D(2, 0.5, -0.5),
new Vector3D(0, 2, -0.5),
new Vector3D(-0.5, 0, 2));
group.Children.Add(mesh3.MakeModel(Brushes.LightGreen));
// Make a wrapped box.
MeshGeometry3D mesh4 = new MeshGeometry3D();
mesh4.AddBoxWrapped(new Point3D(-3, -1, 0),
D3.XVector(2), D3.YVector(2), D3.ZVector(2));
group.Children.Add(mesh4.MakeModel("wrapper.png"));
// 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"));
}