public static Point3dCollection GetOffsetTriangles(TinSurfaceTriangle tri, double offset)
{
var points = new Point3dCollection();
try
{
Acad.Vector3d cenpointp3d = new Acad.Vector3d();
Acad.Vector3d centerv1 = new Acad.Vector3d();
Acad.Vector3d centerv2 = new Acad.Vector3d();
Acad.Vector3d centerv3 = new Acad.Vector3d();
var v1 = tri.Vertex1.Location;
var v2 = tri.Vertex2.Location;
var v3 = tri.Vertex3.Location;
var vec1 = v1.GetVectorTo(v2);
var vec2 = v1.GetVectorTo(v3);
var norm = vec1.CrossProduct(vec2);
var e1 = UnitVector3D(vec1);
var e2 = UnitVector3D(vec2);
var M = new Acad.Vector3d(norm.X, norm.Y, norm.Z + offset);
cenpointp3d = FindTriangleCenter(v1, v2, v3, vec1.CrossProduct(vec2));
centerv1 = new Acad.Vector3d(cenpointp3d.X + v1.X, cenpointp3d.Y + v1.Y, cenpointp3d.Z + v1.Z) / 2.0;
centerv2 = new Acad.Vector3d(cenpointp3d.X + v2.X, cenpointp3d.Y + v2.Y, cenpointp3d.Z + v2.Z) / 2.0;
centerv3 = new Acad.Vector3d(cenpointp3d.X + v3.X, cenpointp3d.Y + v3.Y, cenpointp3d.Z + v3.Z) / 2.0;
var offsetcenterv1 = (centerv1.Add(M));
var offsetcenterv2 = (centerv2.Add(M));
var offsetcenterv3 = (centerv3.Add(M));
var p1 = new Acad.Point3d(offsetcenterv1.X, offsetcenterv1.Y, offsetcenterv1.Z);
var p2 = new Acad.Point3d(offsetcenterv2.X, offsetcenterv2.Y, offsetcenterv2.Z);
var p3 = new Acad.Point3d(offsetcenterv3.X, offsetcenterv3.Y, offsetcenterv3.Z);
points.Add(p1);
points.Add(p2);
points.Add(p3);
}
catch (System.Exception ex)
{
Debug.WriteLine("Error: " + ex.Message);
}
return(points);
}
public static Point3dCollection GetOffsetTrianglesEdges(TinSurfaceTriangle tri, double offset)
{
var points = new Point3dCollection();
try
{
Acad.Vector3d cenpointp3d = new Acad.Vector3d();
Acad.Vector3d centerv1 = new Acad.Vector3d();
Acad.Vector3d centerv2 = new Acad.Vector3d();
Acad.Vector3d centerv3 = new Acad.Vector3d();
var edge1 = tri.Edge1;
var edge2 = tri.Edge2;
var edge3 = tri.Edge3;
//compute the contributions from the edges
var tv111 = edge1.Triangle1.Vertex1.Location;
var tv112 = edge1.Triangle1.Vertex2.Location;
var tv113 = edge1.Triangle1.Vertex3.Location;
var tv121 = edge1.Triangle2.Vertex1.Location;
var tv122 = edge1.Triangle2.Vertex2.Location;
var tv123 = edge1.Triangle2.Vertex3.Location;
BBC.SkeletonSurf.SkeletonSurf.CreateLine(tv111, tv112);
BBC.SkeletonSurf.SkeletonSurf.CreateLine(tv111, tv113);
BBC.SkeletonSurf.SkeletonSurf.CreateLine(tv113, tv112);
// vectors
var v22 = tv111.GetVectorTo(tv113);
var v23 = tv121.GetVectorTo(tv123);
var n22 = v22.GetNormal(Tolerance.Global);
var n23 = v23.GetNormal(Tolerance.Global);
var n = n22 + n23;
var angle = v22.GetAngleTo(v23) * 180 / Math.PI;
var ap = v22.AngleOnPlane(new Plane(tv121, v23.CrossProduct(v22)));
var ap2 = v23.AngleOnPlane(new Plane(tv121, v23.CrossProduct(v22)));
//edge1.Triangle1
var v1 = tri.Vertex1.Location;
var v2 = tri.Vertex2.Location;
var v3 = tri.Vertex3.Location;
var vec1 = v1.GetVectorTo(v2);
var vec2 = v1.GetVectorTo(v3);
var norm = vec1.CrossProduct(vec2);
var e1 = UnitVector3D(vec1);
var e2 = UnitVector3D(vec2);
var M = new Acad.Vector3d(norm.X, norm.Y, norm.Z + offset);
cenpointp3d = FindTriangleCenter(v1, v2, v3, vec1.CrossProduct(vec2));
centerv1 = new Acad.Vector3d(cenpointp3d.X + v1.X, cenpointp3d.Y + v1.Y, cenpointp3d.Z + v1.Z) / 2.0;
centerv2 = new Acad.Vector3d(cenpointp3d.X + v2.X, cenpointp3d.Y + v2.Y, cenpointp3d.Z + v2.Z) / 2.0;
centerv3 = new Acad.Vector3d(cenpointp3d.X + v3.X, cenpointp3d.Y + v3.Y, cenpointp3d.Z + v3.Z) / 2.0;
var offsetcenterv1 = (centerv1.Add(M));
var offsetcenterv2 = (centerv2.Add(M));
var offsetcenterv3 = (centerv3.Add(M));
var p1 = new Acad.Point3d(offsetcenterv1.X, offsetcenterv1.Y, offsetcenterv1.Z);
var p2 = new Acad.Point3d(offsetcenterv2.X, offsetcenterv2.Y, offsetcenterv2.Z);
var p3 = new Acad.Point3d(offsetcenterv3.X, offsetcenterv3.Y, offsetcenterv3.Z);
points.Add(p1);
points.Add(p2);
points.Add(p3);
}
catch (System.Exception ex)
{
Debug.WriteLine("Error: " + ex.Message);
}
return(points);
}
public static List <Acad.Vector3d> GetOffsetPoints(TinSurfaceVertex vert, double offset)
{
var points = new List <Acad.Vector3d>();
try
{
var sum = new SummationsAcad();
var sumv = new SummationsAcad();
Acad.Vector3d centerOfPlane = new Acad.Vector3d();
Acad.Vector3d centerv1 = new Acad.Vector3d();
Acad.Vector3d centerv2 = new Acad.Vector3d();
Acad.Vector3d centerv3 = new Acad.Vector3d();
// central connection point
var location = vert.Location;
var cenpoint = MathNet.Numerics.LinearAlgebra.Vector <double> .Build.DenseOfArray(new[] { location.X, location.Y, location.Z });
var cenpointp3d = new Acad.Point3d(cenpoint[0], cenpoint[1], cenpoint[2]);
// all the connecting Triangles
var triangles = vert.Triangles;
// all the connecting vertices's
var connectedvertices = vert.Vertices;
var connectedTriangles = vert.Triangles;
foreach (var tri in connectedTriangles)
{
var v1 = tri.Vertex1.Location;
var v2 = tri.Vertex2.Location;
var v3 = tri.Vertex3.Location;
var vec1 = v1.GetVectorTo(v2);
var vec2 = v1.GetVectorTo(v3);
var norm = vec1.CrossProduct(vec2);
var e1 = UnitVector3D(vec1);
var e2 = UnitVector3D(vec2);
centerOfPlane = FindTriangleCenter(v1, v2, v3, vec1.CrossProduct(vec2));
//create 3 more points on the plane
centerv1 = new Acad.Vector3d(cenpointp3d.X + v1.X, cenpointp3d.Y + v1.Y, cenpointp3d.Z + v1.Z) / 2.0;
centerv2 = new Acad.Vector3d(cenpointp3d.X + v2.X, cenpointp3d.Y + v2.Y, cenpointp3d.Z + v2.Z) / 2.0;
centerv3 = new Acad.Vector3d(cenpointp3d.X + v3.X, cenpointp3d.Y + v3.Y, cenpointp3d.Z + v3.Z) / 2.0;
sum = IterateAdjacentTrianglesAcad(connectedTriangles, cenpointp3d);
}
//Triangle Center Points
var M = (new Acad.Vector3d(sum.Top.X, sum.Top.Y, sum.Top.Z) / (Magnitude(new Acad.Vector3d(sum.Bot.X, sum.Bot.Y, sum.Bot.Z)))) * offset;
var offsetvecCenter = (centerOfPlane.Add(M));
var offsetcenterv1 = (centerv1.Add(M));
var offsetcenterv2 = (centerv2.Add(M));
var offsetcenterv3 = (centerv3.Add(M));
points.Add(offsetvecCenter);
points.Add(offsetcenterv1);
points.Add(offsetcenterv2);
points.Add(offsetcenterv3);
}
catch (System.Exception ex)
{
Debug.WriteLine("Error: " + ex.Message);
}
return(points.ToList());
}
