public void show(Graphics g, Projection pr = 0, Pen pen = null, bool normal = false, Point3d camera = null)
{
var figure = new Polyhedron(this);
figure.Apply(Transformation.ProjectionTransform(pr));
foreach (Face f in figure.Faces)
{
if(normal)
if(camera == null)
f.find_normal(this.Center);
else
f.find_normal(this.Center, camera);
if (f.IsVisible)
f.show(g, pr, pen);
}
}
public Polyhedron(Polyhedron polyhedron)
{
Faces = polyhedron.Faces.Select(face => new Face(face)).ToList();
Center = new Point3d(polyhedron.Center);
Cube_size = polyhedron.Cube_size;
}
public void make_octahedron(Polyhedron cube = null)
{
if (cube == null)
{
cube = new Polyhedron();
cube.make_hexahedron();
}
// up
Face f0 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[2].Center),
new Point3d(cube.Faces[1].Center),
new Point3d(cube.Faces[4].Center)
}
);
Face f1 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[2].Center),
new Point3d(cube.Faces[1].Center),
new Point3d(cube.Faces[5].Center)
}
);
Face f2 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[2].Center),
new Point3d(cube.Faces[5].Center),
new Point3d(cube.Faces[0].Center)
}
);
Face f3 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[2].Center),
new Point3d(cube.Faces[0].Center),
new Point3d(cube.Faces[4].Center)
}
);
// down
Face f4 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[3].Center),
new Point3d(cube.Faces[1].Center),
new Point3d(cube.Faces[4].Center)
}
);
Face f5 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[3].Center),
new Point3d(cube.Faces[1].Center),
new Point3d(cube.Faces[5].Center)
}
);
Face f6 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[3].Center),
new Point3d(cube.Faces[5].Center),
new Point3d(cube.Faces[0].Center)
}
);
Face f7 = new Face(
new List<Point3d>
{
new Point3d(cube.Faces[3].Center),
new Point3d(cube.Faces[0].Center),
new Point3d(cube.Faces[4].Center)
}
);
Faces = new List<Face> { f0, f1, f2, f3, f4, f5, f6, f7 };
find_center();
}