/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object can be used to retrieve data from input parameters and
/// to store data in output parameters.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
PlanktonMesh mesh = null;
DA.GetData(0, ref mesh);
DA.SetData(0, mesh.Dual());
}
public void CanDualCube()
{
// Create a simple cube
PlanktonMesh pMesh = new PlanktonMesh();
pMesh.Vertices.Add(-0.5, -0.5, 0.5);
pMesh.Vertices.Add(-0.5, -0.5, -0.5);
pMesh.Vertices.Add(-0.5, 0.5, -0.5);
pMesh.Vertices.Add(-0.5, 0.5, 0.5);
pMesh.Vertices.Add(0.5, -0.5, 0.5);
pMesh.Vertices.Add(0.5, -0.5, -0.5);
pMesh.Vertices.Add(0.5, 0.5, -0.5);
pMesh.Vertices.Add(0.5, 0.5, 0.5);
pMesh.Faces.AddFace(3, 2, 1, 0);
pMesh.Faces.AddFace(1, 5, 4, 0);
pMesh.Faces.AddFace(2, 6, 5, 1);
pMesh.Faces.AddFace(7, 6, 2, 3);
pMesh.Faces.AddFace(4, 7, 3, 0);
pMesh.Faces.AddFace(5, 6, 7, 4);
var dual = pMesh.Dual();
Assert.AreEqual(new int[] { 2, 3, 0, 1 }, dual.Vertices.GetVertexFaces(0));
}
private void _applyOperation(Token token)
{
switch (token.Operation)
{
case Operation.kis:
_pMesh = _pMesh.Kis();
break;
case Operation.ambo:
_pMesh = _pMesh.Ambo();
break;
case Operation.gyro:
break;
case Operation.dual:
_pMesh = _pMesh.Dual();
break;
case Operation.reflect:
break;
case Operation.expand:
_pMesh = _pMesh.Expand();
break;
case Operation.bevel:
_pMesh = _pMesh.Bevel();
break;
case Operation.ortho:
_pMesh = _pMesh.Ortho();
break;
case Operation.meta:
_pMesh = _pMesh.Meta();
break;
case Operation.truncate:
_pMesh = _pMesh.Truncate();
break;
case Operation.@join:
_pMesh = _pMesh.Join();
break;
case Operation.split:
break;
case Operation.propeller:
_pMesh = _pMesh.Propeller();
break;
case Operation.flatten:
break;
case Operation.loft:
_pMesh = _pMesh.Loft();
break;
case Operation.needle:
_pMesh = _pMesh.Needle();
break;
case Operation.zip:
_pMesh = _pMesh.Zip();
break;
case Operation.quinto:
_pMesh = _pMesh.Quinto();
break;
case Operation.none:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
public void CanDualCube()
{
// Create a simple cube
PlanktonMesh pMesh = new PlanktonMesh();
pMesh.Vertices.Add(-0.5, -0.5, 0.5);
pMesh.Vertices.Add(-0.5, -0.5, -0.5);
pMesh.Vertices.Add(-0.5, 0.5, -0.5);
pMesh.Vertices.Add(-0.5, 0.5, 0.5);
pMesh.Vertices.Add(0.5, -0.5, 0.5);
pMesh.Vertices.Add(0.5, -0.5, -0.5);
pMesh.Vertices.Add(0.5, 0.5, -0.5);
pMesh.Vertices.Add(0.5, 0.5, 0.5);
pMesh.Faces.AddFace(3, 2, 1, 0);
pMesh.Faces.AddFace(1, 5, 4, 0);
pMesh.Faces.AddFace(2, 6, 5, 1);
pMesh.Faces.AddFace(7, 6, 2, 3);
pMesh.Faces.AddFace(4, 7, 3, 0);
pMesh.Faces.AddFace(5, 6, 7, 4);
var dual = pMesh.Dual();
Assert.AreEqual(new int[] { 2, 3, 0, 1 }, dual.Vertices.GetVertexFaces(0));
}
public static PlanktonMesh Needle(this PlanktonMesh pMesh)
{
return(pMesh.Dual().Kis());
}
protected override void SolveInstance(IGH_DataAccess DA)
{
PlanktonMesh P1 = null;
if (!DA.GetData(0, ref P1))
{
return;
}
List <double> RL = new List <double>();
if (!DA.GetDataList(1, RL))
{
return;
}
bool D = false;
if (!DA.GetData(2, ref D))
{
return;
}
if (D)
{
P1 = P1.Dual();
}
PlanktonMesh P2 = new PlanktonMesh();
int vcount = P1.Vertices.Count;
List <Vector3d> Normals = new List <Vector3d>();
List <int> Outer = new List <int>();
List <int> Inner = new List <int>();
List <int> Elbow = new List <int>();
for (int i = 0; i < vcount; i++)
{
Point3d Vertex = P1.Vertices[i].ToPoint3d();
Vector3d Normal = new Vector3d();
double AvgAngle = 0;
double R = 0;
if (RL.Count == 1)
{
R = RL[0];
}
else
{
R = RL[i];
}
int[] OutEdges = P1.Vertices.GetHalfedges(i);
int[] Neighbours = P1.Vertices.GetVertexNeighbours(i);
Vector3d[] OutVectors = new Vector3d[Neighbours.Length];
int Valence = P1.Vertices.GetValence(i);
for (int j = 0; j < Valence; j++)
{
Vector3d OutVector = P1.Vertices[Neighbours[j]].ToPoint3d() - Vertex;
OutVector.Unitize();
OutVectors[j] = OutVector;
}
for (int j = 0; j < Valence; j++)
{
if (P1.Halfedges[OutEdges[(j + 1) % Valence]].AdjacentFace != -1)
{
Normal += (Vector3d.CrossProduct(OutVectors[(j + 1) % Valence], OutVectors[j]));
}
}
Normal.Unitize();
Normals.Add(Normal);
for (int j = 0; j < Valence; j++)
{
AvgAngle += Vector3d.VectorAngle(Normal, OutVectors[j]);
}
AvgAngle = AvgAngle * (1.0 / Valence);
double Offset = R / (Math.Sin(AvgAngle));
Outer.Add(P2.Vertices.Add(Vertex + (Normal * Offset))); //this adds the actual point to the mesh, as well as its index to Outer
Inner.Add(P2.Vertices.Add(Vertex - (Normal * Offset)));
}
for (int i = 0; i < P1.Halfedges.Count; i++)
{
//get the 3 points of the angle
int Prev = P1.Halfedges[i].PrevHalfedge;
int Next = P1.Halfedges[i].NextHalfedge;
int PrevV = P1.Halfedges[Prev].StartVertex;
int NextV = P1.Halfedges[Next].StartVertex;
int ThisV = P1.Halfedges[i].StartVertex;
double R = 0;
if (RL.Count == 1)
{
R = RL[0];
}
else
{
R = RL[ThisV];
}
Point3d PrevPt = P1.Vertices[PrevV].ToPoint3d();
Point3d NextPt = P1.Vertices[NextV].ToPoint3d();
Point3d ThisPt = P1.Vertices[ThisV].ToPoint3d();
//construct the point at the inside of the 'elbow'
Vector3d Arm1 = PrevPt - ThisPt;
Vector3d Arm2 = NextPt - ThisPt;
Arm1.Unitize(); Arm2.Unitize();
double alpha = Vector3d.VectorAngle(Arm1, Arm2);
Point3d ThisElbow;
Vector3d Bisect = new Vector3d();
if (P1.Halfedges[i].AdjacentFace == -1)
{
Bisect = Vector3d.CrossProduct(Normals[ThisV], -1.0 * Arm1) + Vector3d.CrossProduct(Normals[ThisV], Arm2);
}
else
{
Bisect = Arm1 + Arm2;
}
Bisect.Unitize();
ThisElbow = ThisPt + Bisect * (R / Math.Sin(alpha * 0.5));
Elbow.Add(P2.Vertices.Add(ThisElbow));
}
for (int i = 0; i < P1.Halfedges.Count; i++)
{
int Next = P1.Halfedges[i].NextHalfedge;
int NextV = P1.Halfedges[Next].StartVertex;
int ThisV = P1.Halfedges[i].StartVertex;
P2.Faces.AddFace(Outer[ThisV], Outer[NextV], Elbow[Next], Elbow[i]);
P2.Faces.AddFace(Elbow[i], Elbow[Next], Inner[NextV], Inner[ThisV]);
}
Mesh OutputMesh = P2.ToRhinoMesh();
DA.SetData(0, OutputMesh);
}
/// <summary>
/// Same as `Dual`, but returns a PlanktonMesh, useful for chaining operators
/// </summary>
/// <param name="pMesh"></param>
/// <returns></returns>
public static PlanktonMesh Dual(this PlanktonMesh pMesh)
{
return(pMesh.Dual());
}
