static void Main(string[] args)
{
ComputeServer.AuthToken = Rhino.Compute.AuthToken.Get();
var cube = new Box(new BoundingBox(-0.5, -0.5, -0.5, 0.5, 0.5, 0.5));
var sphere = new Sphere(new Point3d(0.5, 0.5, 0.5), 0.8);
Brep[] cubeBrep = new Brep[] { cube.ToBrep() };
Brep[] sphereBrep = new Brep[] { sphere.ToBrep() };
const double tolerance = 1.0e-8;
List <Brep> allBreps = new List <Brep>();
allBreps.AddRange(cubeBrep);
allBreps.AddRange(sphereBrep);
Brep[] union = BrepCompute.CreateBooleanUnion(allBreps, tolerance);
Rhino.Compute.ObjExport.ExportBrepsToObj("cube_sphere_union.obj", union);
Brep[] intersection = BrepCompute.CreateBooleanIntersection(cubeBrep, sphereBrep, tolerance);
Rhino.Compute.ObjExport.ExportBrepsToObj("cube_sphere_intersection.obj", intersection);
Brep[] difference = BrepCompute.CreateBooleanDifference(cubeBrep, sphereBrep, tolerance);
Rhino.Compute.ObjExport.ExportBrepsToObj("cube_sphere_difference.obj", difference);
}
private void GenerateGeo()
{
model = new Rhino.FileIO.File3dm();
int num = 10;
float outerRad = 2f;
var curves = new List <Rhino.Geometry.NurbsCurve>();
for (int i = 0; i < num; i++)
{
var pt = new Rhino.Geometry.Point3d(0, 0, height / (num - 1) * i);
var circle = new Rhino.Geometry.Circle(pt, pipeRad);
var polygon = Rhino.Geometry.Polyline.CreateInscribedPolygon(circle, segments);
var curve = polygon.ToNurbsCurve();
curve.Rotate(i * Mathf.Deg2Rad * angle, new Rhino.Geometry.Vector3d(0, 0, 1), new Rhino.Geometry.Point3d(0, 0, 0));
curve.Translate(new Rhino.Geometry.Vector3d(Mathf.Cos(Mathf.Deg2Rad * angle * i), Mathf.Sin(Mathf.Deg2Rad * angle * i), 0) * outerRad);
curves.Add(curve);
}
var breps = BrepCompute.CreateFromLoft(curves, Rhino.Geometry.Point3d.Unset, Rhino.Geometry.Point3d.Unset, Rhino.Geometry.LoftType.Normal, false);
var meshList = new List <Rhino.Geometry.Mesh>();
foreach (var brep in breps)
{
var brep2 = brep.CapPlanarHoles(0.001);
// generates two additional breps
var meshes = MeshCompute.CreateFromBrep(brep2);
meshList.AddRange(meshes.ToList());
model.Objects.AddBrep(brep2);
}
foreach (var mesh in meshList)
{
Mesh meshObj = new Mesh();
var vertices = new List <Vector3>();
foreach (var meshVertex in mesh.Vertices)
{
var vertex = new Vector3(meshVertex.X, meshVertex.Z, meshVertex.Y);
vertices.Add(vertex);
}
var triangles = new List <int>();
foreach (var meshFace in mesh.Faces)
{
if (meshFace.IsTriangle)
{
triangles.Add(meshFace.C);
triangles.Add(meshFace.B);
triangles.Add(meshFace.A);
}
else if (meshFace.IsQuad)
{
triangles.Add(meshFace.C);
triangles.Add(meshFace.B);
triangles.Add(meshFace.A);
triangles.Add(meshFace.D);
triangles.Add(meshFace.C);
triangles.Add(meshFace.A);
}
}
var normals = new List <Vector3>();
foreach (var normal in mesh.Normals)
{
normals.Add(new Vector3(normal.X, normal.Z, normal.Y));
}
meshObj.vertices = vertices.ToArray();
meshObj.triangles = triangles.ToArray();
meshObj.normals = normals.ToArray();
GameObject gb = new GameObject();
gb.AddComponent <MeshFilter>().mesh = meshObj;
gb.AddComponent <MeshRenderer>().material = mat;
}
}