private void AddContours(Visual3D model1, int o, int m, int n)
{
var bounds = Visual3DHelper.FindBounds(model1, Transform3D.Identity);
for (int i = 1; i < n; i++)
{
this.ContourPlane = new Plane3D(new Point3D(0, 0, bounds.Location.Z + bounds.Size.Z * i / n), new Vector3D(0, 0, 1));
Visual3DHelper.Traverse<GeometryModel3D>(model1, this.AddContours);
}
for (int i = 1; i < m; i++)
{
this.ContourPlane = new Plane3D(new Point3D(0, bounds.Location.Y + bounds.Size.Y * i / m, 0), new Vector3D(0, 1, 0));
Visual3DHelper.Traverse<GeometryModel3D>(model1, this.AddContours);
}
for (int i = 1; i < o; i++)
{
this.ContourPlane = new Plane3D(new Point3D(bounds.Location.X + bounds.Size.X * i / o, 0, 0), new Vector3D(1, 0, 0));
Visual3DHelper.Traverse<GeometryModel3D>(model1, this.AddContours);
}
}
/// <summary>
/// Intersects the specified source mesh geometry with the specified plane.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="inverseTransform">The inverse transform of the source.</param>
/// <param name="plane">The plane.</param>
/// <param name="complement">Cut with the complement set if set to <c>true</c>.</param>
/// <returns>The intersected geometry.</returns>
private MeshGeometry3D Intersect(MeshGeometry3D source, GeneralTransform3D inverseTransform, Plane3D plane, bool complement)
{
var p = inverseTransform.Transform(plane.Position);
var p2 = inverseTransform.Transform(plane.Position + plane.Normal);
var n = p2 - p;
if (complement)
{
n *= -1;
}
return MeshGeometryHelper.Cut(source, p, n);
}
/// <summary>
/// Intersects the specified source mesh geometry with the specified plane.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="inverseTransform">The inverse transform of the source.</param>
/// <param name="plane">The plane.</param>
/// <param name="complement">Cut with the complement set if set to <c>true</c>.</param>
/// <returns>The intersected geometry.</returns>
private MeshGeometry3D Intersect(MeshGeometry3D source, GeneralTransform3D inverseTransform, Plane3D plane, bool complement)
{
var p = inverseTransform.Transform(plane.Position);
var p2 = inverseTransform.Transform(plane.Position + plane.Normal);
var n = p2 - p;
if (complement)
{
n *= -1;
}
return(MeshGeometryHelper.Cut(source, p, n));
}
/// <summary>
/// Chamfers the specified corner (experimental code).
/// </summary>
/// <param name="p">
/// The corner point.
/// </param>
/// <param name="d">
/// The chamfer distance.
/// </param>
/// <param name="eps">
/// The corner search limit distance.
/// </param>
/// <param name="chamferPoints">
/// If this parameter is provided, the collection will be filled with the generated chamfer points.
/// </param>
public void ChamferCorner(Point3D p, double d, double eps = 1e-6, IList<Point3D> chamferPoints = null)
{
this.NoSharedVertices();
this.normals = null;
this.textureCoordinates = null;
var cornerNormal = this.FindCornerNormal(p, eps);
var newCornerPoint = p - (cornerNormal * d);
int index0 = this.positions.Count;
this.positions.Add(newCornerPoint);
var plane = new Plane3D(newCornerPoint, cornerNormal);
int ntri = this.triangleIndices.Count;
for (int i = 0; i < ntri; i += 3)
{
int i0 = i;
int i1 = i + 1;
int i2 = i + 2;
var p0 = this.positions[this.triangleIndices[i0]];
var p1 = this.positions[this.triangleIndices[i1]];
var p2 = this.positions[this.triangleIndices[i2]];
double d0 = (p - p0).LengthSquared;
double d1 = (p - p1).LengthSquared;
double d2 = (p - p2).LengthSquared;
double mind = Math.Min(d0, Math.Min(d1, d2));
if (mind > eps)
{
continue;
}
if (d1 < eps)
{
i0 = i + 1;
i1 = i + 2;
i2 = i;
}
if (d2 < eps)
{
i0 = i + 2;
i1 = i;
i2 = i + 1;
}
p0 = this.positions[this.triangleIndices[i0]];
p1 = this.positions[this.triangleIndices[i1]];
p2 = this.positions[this.triangleIndices[i2]];
// origin is the corner vertex (at index i0)
// find the intersections between the chamfer plane and the two edges connected to the corner
var p01 = plane.LineIntersection(p0, p1);
var p02 = plane.LineIntersection(p0, p2);
if (p01 == null)
{
continue;
}
if (p02 == null)
{
continue;
}
if (chamferPoints != null)
{
// add the chamfered points
if (!chamferPoints.Contains(p01.Value))
{
chamferPoints.Add(p01.Value);
}
if (!chamferPoints.Contains(p02.Value))
{
chamferPoints.Add(p02.Value);
}
}
int i01 = i0;
// change the original triangle to use the first chamfer point
this.positions[this.triangleIndices[i01]] = p01.Value;
int i02 = this.positions.Count;
this.positions.Add(p02.Value);
// add a new triangle for the other chamfer point
this.triangleIndices.Add(i01);
this.triangleIndices.Add(i2);
this.triangleIndices.Add(i02);
// add a triangle connecting the chamfer points and the new corner point
this.triangleIndices.Add(index0);
this.triangleIndices.Add(i01);
this.triangleIndices.Add(i02);
}
this.NoSharedVertices();
}
public ClippingPlane(Plane3D plane)
{
this.Location = new Point(plane.Position);
this.Direction = new Direction(plane.Normal);
}