public List <Brep> CreateWallBrep()
{
double offsetDistance1 = this.thickness / 2 + offset;
double offsetDistance2 = this.thickness / 2 - offset;
List <Brep> solids = new List <Brep>();
Brep solid = new Brep();
for (int i = 0; i < this.wall.Surfaces.Count; i++)
{
Surface offsetSurface1 = this.wall.Surfaces[i].Offset(offsetDistance1, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance);
Surface offsetSurface2 = this.wall.Surfaces[i].Offset(-1 * offsetDistance2, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance);
List <Brep> solidBreps = new List <Brep>();
Brep wallBrep1 = offsetSurface1.ToBrep();
BrepEdgeList brepEdges1 = wallBrep1.Edges;
Brep wallBrep2 = offsetSurface2.ToBrep();
BrepEdgeList brepEdges2 = wallBrep2.Edges;
solidBreps.Add(wallBrep1);
solidBreps.Add(wallBrep2);
BrepFace wallSurface = wallBrep1.Faces[0];
solids.Add(Brep.CreateFromOffsetFace(wallSurface, -1 * this.thickness, Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance, false, true));
}
return(solids);
}
/// <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)
{
GeometryBase Geom = default(GeometryBase);
Vector3d Direction = default(Vector3d);
bool IsDubleSide = true, IsCape = true;
Brep Output = default(Brep);
if (!DA.GetData(0, ref Geom))
{
return;
}
if (!DA.GetData(1, ref Direction))
{
return;
}
if (!DA.GetData(2, ref IsDubleSide))
{
return;
}
if (!DA.GetData(3, ref IsCape))
{
return;
}
if (Geom is Curve)
{
Curve Crv = Geom as Curve;
Output = this.ExtrudeCurveBothSide(Crv, Direction, IsDubleSide, IsCape);
}
else if (Geom is Surface)
{
Surface Srf = Geom as Surface;
//
//实现在函数里面书写函数
//
//
Func <Surface, Curve> CreateBoundary = _Srf =>
{
Brep b = _Srf.ToBrep();
CurveList Crvs = new CurveList();
BrepEdgeList es = b.Edges;
foreach (BrepEdge e in es)
{
Crvs.Add(e.EdgeCurve);
}
return(Curve.JoinCurves(Crvs)[0]);
};
Curve Crv = CreateBoundary(Srf);
Output = this.ExtrudeCurveBothSide(Crv, Direction, IsDubleSide, IsCape);
}
if (Output == null)
{
this.AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "输入的几何体不是平面几何体");
}
DA.SetData(0, Output);
}
private Curve GetSurfaceBoundary(Surface Srf)
{
Brep b = Srf.ToBrep();
CurveList Crvs = new CurveList();
BrepEdgeList es = b.Edges;
foreach (BrepEdge e in es)
{
Crvs.Add(e.EdgeCurve);
}
return(Curve.JoinCurves(Crvs)[0]);
}
/// <summary>
/// This Method converts the two input curvelist to a meshlist
/// </summary>
/// <param name="sidewalkList"></param>
/// <param name="_FootprintList"></param>
/// <returns></returns>
private static List <Mesh> SidewalkCrvToMesh(List <Curve> sidewalkList, List <Curve> _FootprintList)
{
List <Brep> outLine = new List <Brep>();
List <Brep> inLine = new List <Brep>();
foreach (Curve sw in sidewalkList)
{
Curve sidewalk = sw.Simplify(CurveSimplifyOptions.All, 1, 2);
Brep[] planarSidewalkList = Brep.CreatePlanarBreps(sidewalk, 1.0);
outLine.AddRange(from Brep planarSidewalk in planarSidewalkList
select planarSidewalk);
}
Curve[] footprintCrvList = Curve.CreateBooleanUnion(_FootprintList, 1.0);
foreach (Curve footprint in footprintCrvList)
{
Brep[] planarBuildingList = Brep.CreatePlanarBreps(footprint, 1.0);
inLine.AddRange(from Brep planarFootprints in planarBuildingList
select planarFootprints);
}
Brep[] sidewalks = Brep.CreateBooleanDifference(outLine, inLine, 1.0);
List <Mesh> sidewalkMeshes = new List <Mesh>();
foreach (Brep sw in sidewalks)
{
Mesh[] sideWalkMeshList = Mesh.CreateFromBrep(sw, MeshingParameters.FastRenderMesh);
sidewalkMeshes.AddRange(from Mesh mesh in sideWalkMeshList
select mesh);
BrepEdgeList edges = sw.Edges;
}
return(sidewalkMeshes);
}
