protected override void SolveInstance(IGH_DataAccess DA)
{
Brep Brep = null;
var Curves = new List <Curve>();;
var Points = new List <Point3d>();;
if (!DA.GetData("Brep", ref Brep))
{
return;
}
bool hasCurves = DA.GetDataList("Curves", Curves);
bool hasPoints = DA.GetDataList("Points", Points);
if (Brep != null)
{
Unroller unroller = new Unroller(Brep);
if (hasCurves)
{
unroller.AddFollowingGeometry(Curves);
}
if (hasPoints)
{
unroller.AddFollowingGeometry(Points);
}
TextDot[] dots;
Point3d[] pts;
Curve[] unrolledCrvs;
unroller.ExplodeOutput = false;
var B = unroller.PerformUnroll(out unrolledCrvs, out pts, out dots);
var C = unrolledCrvs;
var P = pts;
DA.SetDataList("Brep", B);
DA.SetDataList("Curves", C);
DA.SetDataList("Points", P);
}
}
public static Mesh ConvertBrepToMesh(Brep brep, List <Curve> curves, List <Point3d> points, double meshSize, List <Parameters.GsaMember1d> mem1ds = null, List <Parameters.GsaNode> nodes = null)
{
Brep in_brep = brep.DuplicateBrep();
in_brep.Faces.ShrinkFaces();
// set up unroller
Unroller unroller = new Unroller(in_brep);
List <Curve> memcrvs = new List <Curve>();
if (mem1ds != null)
{
memcrvs = mem1ds.ConvertAll(x => (Curve)x.PolyCurve);
unroller.AddFollowingGeometry(memcrvs);
}
List <Point3d> nodepts = new List <Point3d>();
if (nodes != null)
{
nodepts = nodes.ConvertAll(x => x.Point);
unroller.AddFollowingGeometry(nodepts);
}
unroller.AddFollowingGeometry(points);
unroller.AddFollowingGeometry(curves);
unroller.RelativeTolerance = 10 ^ 32;
//unroller.AbsoluteTolerance = 1000;
// create list of flattened geometry
Point3d[] inclPts;
Curve[] inclCrvs;
TextDot[] unused;
// perform unroll
Brep[] flattened = unroller.PerformUnroll(out inclCrvs, out inclPts, out unused);
// create 2d member from flattened geometry
Parameters.GsaMember2d mem = new Parameters.GsaMember2d(flattened[0], inclCrvs.ToList(), inclPts.ToList());
mem.Member.MeshSize = meshSize;
// add to temp list for input in assemble function
List <Parameters.GsaMember2d> mem2ds = new List <Parameters.GsaMember2d>();
mem2ds.Add(mem);
if (mem1ds != null)
{
for (int i = 0; i < mem1ds.Count; i++)
{
Parameters.GsaMember1d mem1d = new Parameters.GsaMember1d(inclCrvs[i]);
mem1d.Member.MeshSize = mem1ds[i].Member.MeshSize;
mem1ds[i] = mem1d;
}
}
if (nodes != null)
{
for (int i = 0; i < nodes.Count; i++)
{
nodes[i].Point = inclPts[i];
}
}
// assemble temp model
Model model = Util.Gsa.ToGSA.Assemble.AssembleModel(null, mem2ds, mem1ds, nodes);
// call the meshing algorithm
model.CreateElementsFromMembers();
// extract elements from model
Tuple <List <Parameters.GsaElement1dGoo>, List <Parameters.GsaElement2dGoo>, List <Parameters.GsaElement3dGoo> > elementTuple
= Util.Gsa.FromGSA.GetElements(model.Elements(), model.Nodes(), model.Sections(), model.Prop2Ds());
List <Parameters.GsaElement2dGoo> elem2dgoo = elementTuple.Item2;
Mesh mesh = elem2dgoo[0].Value.Mesh;
Surface flat = flattened[0].Surfaces[0];
Surface orig = in_brep.Surfaces[0];
MeshVertexList vertices = mesh.Vertices;
for (int i = 0; i < vertices.Count; i++)
{
flat.ClosestPoint(vertices.Point3dAt(i), out double u, out double v);
Point3d mapVertex = orig.PointAt(u, v);
vertices.SetVertex(i, mapVertex);
}
mesh.Faces.ConvertNonPlanarQuadsToTriangles(GhSA.Units.Tolerance, Rhino.RhinoMath.DefaultAngleTolerance, 0);
return(mesh);
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
//---- Declareing ---------------------------------------------------------------------------
GH_Structure <GH_Brep> AllStripes;
DA.GetDataTree("Triloop Stipes", out AllStripes);
GH_Structure <GH_Point> AllPoints;
DA.GetDataTree("Points", out AllPoints);
bool Reorient = false;
DA.GetData <bool>("Merge Stripes", ref Reorient);
bool Switch = false;
DA.GetData <bool>("Switch", ref Switch);
int Seam = 0;
DA.GetData <int>("Seam", ref Seam);
DataTree <Brep> AllUnrolledBreps = new DataTree <Brep>();
DataTree <Brep> ForReorientBreps = new DataTree <Brep>();
DataTree <Plane> AllOrientPlanes = new DataTree <Plane>();
DataTree <Curve> AllSharedCurves = new DataTree <Curve>();
DataTree <Point3d> AllUnrolledPoints = new DataTree <Point3d>();
//---- End Declareing -----------------------------------------------------------------------
//---- Functions ----------------------------------------------------------------------------
#region Unroll
for (int i = 0; i < AllStripes.Branches.Count; i++)
{
GH_Path pth = new GH_Path(i);
GH_Path originalPath = AllStripes.Paths[i];
int stripecounter = 0;
foreach (GH_Brep gbrep in AllStripes[i])
{
Unroller unroll = new Unroller(gbrep.Value);
// Add points to unroll with
if (AllPoints.Branches.Count != 0)
{
foreach (GH_Point pt in AllPoints[i])
{
unroll.AddFollowingGeometry(pt.Value);
}
}
unroll.ExplodeOutput = false;
Curve[] curves;
Point3d[] unrolledPoints;
TextDot[] dots;
Brep[] unrolledBreps = unroll.PerformUnroll(out curves, out unrolledPoints, out dots);
if (Reorient == false)
{
foreach (Brep b in unrolledBreps)
{
AllUnrolledBreps.Add(b, originalPath);
}
foreach (Point3d p in unrolledPoints)
{
AllUnrolledPoints.Add(p, originalPath);
}
}
else
{
foreach (Brep b in unrolledBreps)
{
AllUnrolledBreps.Add(b, pth.AppendElement(stripecounter));
}
}
// For reorientation
if (Reorient == true)
{
ForReorientBreps.Add(unrolledBreps[Seam], pth);
}
stripecounter++;
}
}
#endregion unroll
if (Reorient == true)
{
//ForReorientBreps.Branch(0)[0].Curves3D[0].PointAtEnd;
for (int i = 0; i < ForReorientBreps.BranchCount; i++)
{
GH_Path pth = new GH_Path(i);
foreach (Curve crv0 in ForReorientBreps.Branch(i)[0].Curves3D)
{
foreach (Curve crv1 in ForReorientBreps.Branch(i)[1].Curves3D)
{
double l0 = crv0.GetLength();
double l1 = crv1.GetLength();
if (Math.Abs(l0 - l1) < 0.00001)
{
// orient crv0
Plane origin0 = new Plane(new Point3d(0, 0, 0), new Vector3d(1, 0, 0), new Vector3d(0, 1, 0));
Plane target0 = new Plane(origin0);
AllOrientPlanes.Add(origin0, pth.AppendElement(0));
AllOrientPlanes.Add(target0, pth.AppendElement(0));
// orient crv1
Vector3d vect0 = crv1.TangentAtStart;
Vector3d vect1 = Vector3d.CrossProduct(vect0, new Vector3d(0.0, 0.0, 1.0));
Plane origin1 = new Plane(crv1.PointAtStart, vect0, vect1);
Vector3d vect2 = new Vector3d();
Vector3d vect3 = new Vector3d();
Plane target1 = new Plane();
if (Switch == true)
{
vect2 = crv0.TangentAtStart;
vect3 = Vector3d.CrossProduct(vect2, new Vector3d(0.0, 0.0, 1.0));
target1 = new Plane(crv0.PointAtStart, vect2, vect3);
}
else
{
vect2 = crv0.TangentAtStart;
vect3 = Vector3d.CrossProduct(-vect2, new Vector3d(0.0, 0.0, 1.0));
target1 = new Plane(crv0.PointAtEnd, -vect2, vect3);
}
AllOrientPlanes.Add(origin1, pth.AppendElement(1));
AllOrientPlanes.Add(target1, pth.AppendElement(1));
// shared curve of stripe0 and stripe 1
AllSharedCurves.Add(crv0, pth.AppendElement(0));
AllSharedCurves.Add(crv1, pth.AppendElement(0));
}
}
// orient crv2
foreach (Curve crv2 in ForReorientBreps.Branch(i)[2].Curves3D)
{
double l0 = crv0.GetLength();
double l1 = crv2.GetLength();
if (Math.Abs(l0 - l1) < 0.00001)
{
Vector3d vect0 = crv2.TangentAtStart;
Vector3d vect1 = Vector3d.CrossProduct(vect0, new Vector3d(0.0, 0.0, 1.0));
Plane origin2 = new Plane(crv2.PointAtStart, vect0, vect1);
Vector3d vect2 = new Vector3d();
Vector3d vect3 = new Vector3d();
Plane target2 = new Plane();
if (Switch == true)
{
vect2 = crv0.TangentAtStart;
vect3 = Vector3d.CrossProduct(vect2, new Vector3d(0.0, 0.0, 1.0));
target2 = new Plane(crv0.PointAtStart, vect2, vect3);
}
else
{
vect2 = crv0.TangentAtStart;
vect3 = Vector3d.CrossProduct(-vect2, new Vector3d(0.0, 0.0, 1.0));
target2 = new Plane(crv0.PointAtEnd, -vect2, vect3);
}
AllOrientPlanes.Add(origin2, pth.AppendElement(2));
AllOrientPlanes.Add(target2, pth.AppendElement(2));
// shared curve of stripe0 and stripe 2
AllSharedCurves.Add(crv2, pth.AppendElement(2));
AllSharedCurves.Add(crv0, pth.AppendElement(2));
}
}
}
// find the shared curve oft stripe 1 and stripe 2
foreach (Curve crv1 in ForReorientBreps.Branch(i)[1].Curves3D)
{
foreach (Curve crv2 in ForReorientBreps.Branch(i)[2].Curves3D)
{
double l1 = crv1.GetLength();
double l2 = crv2.GetLength();
// shared curve of stripe1 and stripe 2
if (Math.Abs(l1 - l2) < 0.00001)
{
AllSharedCurves.Add(crv1, pth.AppendElement(1));
AllSharedCurves.Add(crv2, pth.AppendElement(1));
}
}
}
}
}
//---- End Functions --------------------------------------------------------------------------
//----Set Output-------------------------------------------------------------------------------
DA.SetDataTree(0, AllUnrolledBreps);
DA.SetDataTree(1, AllOrientPlanes);
DA.SetDataTree(2, AllSharedCurves);
DA.SetDataTree(3, AllUnrolledPoints);
//----End Set Output---------------------------------------------------------------------------
}
