internal bool SaveTriangleToNode(SphereNode sn, int idx)
{
if (!sn.triangle_Idx.Contains(idx))
{
sn.triangle_Idx.Add(idx);
}
return(true);
}
internal bool CreateSphereNodes()
{
for (int i = 0; i < this._mesh.TriangleCount; i++)
{
List <int> triIndexes = vertexIndexByTri[i];
SphereNode sp = SphereNode.ByThreePoints(this.vertices[triIndexes[0]], this.vertices[triIndexes[1]], this.vertices[triIndexes[2]]);
SaveTriangleToNode(sp, i);
this.nodes.Add(sp);
}
return(true);
}
public static IList <SphereNode> SphereNodesByMesh(MeshToolkit mesh)
{
List <Point> vertices = mesh.Vertices();
List <int> vertexIndex = mesh.VertexIndicesByTri();
var setOfIndexes = Core.List.Chop <int>(vertexIndex, 3);
List <SphereNode> sphereNodes = new List <SphereNode>();
foreach (var ind in setOfIndexes)
{
sphereNodes.Add(SphereNode.ByThreePoints(vertices[ind[0]], vertices[ind[1]], vertices[ind[2]]));
}
return(sphereNodes);
}
//TODO: Simplify method to translate point without using point geometries.
public static SphereNode BoundingSphereNode(SphereNode sphere1, SphereNode sphere2)
{
SphereNode minSp = (sphere1.radius < sphere2.radius) ? sphere1 : sphere2;
SphereNode maxSp = (sphere1.radius < sphere2.radius) ? sphere2 : sphere1;
double centersDistance = DistanceBetweenCenters(minSp, maxSp);
double[] vectorCoord = minSp.center.Zip(maxSp.center, (sp1, sp2) => sp2 - sp1).ToArray();
using (Point minCenter = SphereNode.Center(minSp))
using (Point maxCenter = SphereNode.Center(maxSp))
{
Vector v = Vector.ByTwoPoints(minCenter, maxCenter);
double translationDist = (centersDistance + (maxSp.radius - minSp.radius)) * 0.5;
Point center = (Point)minCenter.Translate(v, translationDist);
double radius = (centersDistance + minSp.radius + maxSp.radius) * 0.5;
return(new SphereNode(new double[3] {
center.X, center.Y, center.Z
}, radius));
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
package.RequiresPerVertexColoration = true;
Point center = SphereNode.Center(this);
Autodesk.DesignScript.Geometry.Geometry geometry = Sphere.ByCenterPointRadius(center, this.radius);
byte[] color = new byte[] { 0, 200, 200, 50 };
// As you add more data to the render package, you need
// to keep track of the index where this coloration will
// start from.
geometry.Tessellate(package, parameters);
if (package.MeshVertexCount > 0)
{
package.ApplyMeshVertexColors(CreateColorByteArrayOfSize(package.MeshVertexCount, color[0], color[1], color[2], color[3]));
}
center.Dispose();
geometry.Dispose();
}
public static double DistanceBetweenCenters(SphereNode sphere1, SphereNode sphere2)
{
double[] sq = sphere1.center.Zip(sphere2.center, (s1, s2) => Math.Pow((s2 - s1), 2)).ToArray();
return(Math.Sqrt(sq.Sum()));
}
public static Point Center(SphereNode sphereNode)
{
return(Point.ByCoordinates(sphereNode.center[0], sphereNode.center[1], sphereNode.center[2]));
}