mirror of
https://github.com/NGSolve/netgen.git
synced 2024-09-23 02:02:49 +05:00
1036 lines
34 KiB
C++
1036 lines
34 KiB
C++
#ifdef NG_PYTHON
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#ifdef OCCGEOMETRY
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#include <../general/ngpython.hpp>
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#include <core/python_ngcore.hpp>
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#include "../meshing/python_mesh.hpp"
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#include <meshing.hpp>
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#include <occgeom.hpp>
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#include <gp_Ax1.hxx>
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#include <gp_Ax2.hxx>
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#include <gp_Ax2d.hxx>
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#include <gp_Trsf.hxx>
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#include <BRepPrimAPI_MakeSphere.hxx>
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#include <BRepPrimAPI_MakeCylinder.hxx>
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#include <BRepPrimAPI_MakeRevol.hxx>
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#include <BRepPrimAPI_MakeBox.hxx>
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#include <BRepPrimAPI_MakePrism.hxx>
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#include <BRepOffsetAPI_MakePipe.hxx>
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#include <BRepAlgoAPI_Cut.hxx>
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#include <BRepAlgoAPI_Common.hxx>
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#include <BRepAlgoAPI_Fuse.hxx>
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// #include <XCAFDoc_VisMaterialTool.hxx>
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#include <TDF_Attribute.hxx>
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#include <Standard_GUID.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <Geom_Plane.hxx>
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#include <GC_MakeSegment.hxx>
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#include <GC_MakeCircle.hxx>
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#include <GC_MakeArcOfCircle.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepBuilderAPI_MakeWire.hxx>
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#include <BRepBuilderAPI_Transform.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepFilletAPI_MakeFillet.hxx>
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#include <BRepOffsetAPI_ThruSections.hxx>
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#include <BRepOffsetAPI_MakeOffset.hxx>
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#include <BRepGProp.hxx>
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#include <BRepOffsetAPI_MakeThickSolid.hxx>
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#include <BRepLib.hxx>
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#include <Geom2d_Curve.hxx>
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#include <Geom2d_Ellipse.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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#include <GCE2d_MakeSegment.hxx>
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#include <GCE2d_MakeCircle.hxx>
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#if OCC_VERSION_MAJOR>=7 && OCC_VERSION_MINOR>=4
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#define OCC_HAVE_DUMP_JSON
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#endif
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using namespace netgen;
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py::object CastShape(const TopoDS_Shape & s)
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{
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switch (s.ShapeType())
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{
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case TopAbs_VERTEX:
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return py::cast(TopoDS::Vertex(s));
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case TopAbs_FACE:
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return py::cast(TopoDS::Face(s));
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case TopAbs_EDGE:
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return py::cast(TopoDS::Edge(s));
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case TopAbs_WIRE:
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return py::cast(TopoDS::Wire(s));
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case TopAbs_COMPOUND:
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case TopAbs_COMPSOLID:
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case TopAbs_SOLID:
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case TopAbs_SHELL:
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case TopAbs_SHAPE:
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return py::cast(s);
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}
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};
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class WorkPlane : public enable_shared_from_this<WorkPlane>
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{
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gp_Ax3 axis;
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gp_Ax2d localpos;
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gp_Pnt2d startpnt;
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gp_Dir2d oldDir;
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Handle(Geom_Surface) surf;
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// Geom_Plane surf;
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BRepBuilderAPI_MakeWire wire_builder;
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std::vector<TopoDS_Wire> wires;
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public:
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WorkPlane (const gp_Ax3 & _axis, const gp_Ax2d _localpos = gp_Ax2d())
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: axis(_axis), localpos(_localpos) // , surf(_axis)
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{
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// surf = GC_MakePlane (gp_Ax1(axis.Location(), axis.Direction()));
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surf = new Geom_Plane(axis);
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}
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auto MoveTo (double h, double v)
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{
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startpnt = gp_Pnt2d(h,v);
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oldDir = gp_Dir2d(1,0);
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localpos.SetLocation(startpnt);
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return shared_from_this();
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}
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auto Direction (double h, double v)
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{
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localpos.SetDirection(gp_Dir2d(h,v));
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return shared_from_this();
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}
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auto LineTo (double h, double v)
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{
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gp_Pnt2d old2d = localpos.Location();
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gp_Pnt oldp = axis.Location() . Translated(old2d.X() * axis.XDirection() + old2d.Y() * axis.YDirection());
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// localpos.Translate (gp_Vec2d(h,v));
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localpos.SetLocation (gp_Pnt2d(h,v));
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gp_Pnt2d new2d = localpos.Location();
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gp_Pnt newp = axis.Location() . Translated(new2d.X() * axis.XDirection() + new2d.Y() * axis.YDirection());
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cout << "lineto, newp = " << occ2ng(newp) << endl;
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gp_Pnt pfromsurf;
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surf->D0(new2d.X(), new2d.Y(), pfromsurf);
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cout << "p from plane = " << occ2ng(pfromsurf) << endl;
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Handle(Geom_TrimmedCurve) curve = GC_MakeSegment(oldp, newp);
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auto edge = BRepBuilderAPI_MakeEdge(curve).Edge();
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wire_builder.Add(edge);
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return shared_from_this();
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}
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auto Line(double h, double v)
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{
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gp_Pnt2d oldp = localpos.Location();
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oldp.Translate(gp_Vec2d(h,v));
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return LineTo (oldp.X(), oldp.Y());
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}
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auto Line(double len)
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{
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gp_Dir2d dir = localpos.Direction();
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cout << "dir = " << dir.X() << ", " << dir.Y() << endl;
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gp_Pnt2d oldp = localpos.Location();
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oldp.Translate(len*dir);
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return LineTo (oldp.X(), oldp.Y());
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}
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auto Rotate (double angle)
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{
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oldDir = localpos.Direction();
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localpos.Rotate(localpos.Location(), angle*M_PI/180);
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return shared_from_this();
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}
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auto ArcTo (double h, double v, const gp_Vec tangv, double angle)
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{
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double newAngle = fmod(angle,360)<180?fmod(angle,360):(-360+fmod(angle,360));
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gp_Dir2d dir = localpos.Direction();
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gp_Pnt2d old2d = localpos.Location();
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gp_Pnt oldp = axis.Location() . Translated(old2d.X() * axis.XDirection() + old2d.Y() * axis.YDirection());
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localpos.SetLocation (gp_Pnt2d(h,v));
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gp_Pnt2d new2d = localpos.Location();
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gp_Pnt newp = axis.Location() . Translated(new2d.X() * axis.XDirection() + new2d.Y() * axis.YDirection());
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cout << "arcto, newp = " << occ2ng(newp) << endl;
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cout << "tangv = " << occ2ng(tangv) << endl;
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gp_Pnt pfromsurf;
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surf->D0(new2d.X(), new2d.Y(), pfromsurf);
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cout << "p from plane = " << occ2ng(pfromsurf) << endl;
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//TODO: use GCE2d_MakeArcOfCircle
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Handle(Geom_TrimmedCurve) curve = GC_MakeArcOfCircle(oldp, tangv, newp);
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auto edge = BRepBuilderAPI_MakeEdge(curve).Edge();
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wire_builder.Add(edge);
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Rotate(newAngle);
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return shared_from_this();
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}
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auto Arc(double radius, double angle)
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{
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double newAngle = fmod(angle,360)<180?fmod(angle,360):(-360+fmod(angle,360));
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newAngle = newAngle*M_PI/180;
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gp_Dir2d dir = localpos.Direction();
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gp_Dir2d dirn;
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//compute center point of arc
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if(newAngle>=0)
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dirn = gp_Dir2d(-dir.Y(),dir.X());
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else
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dirn = gp_Dir2d(dir.Y(),-dir.X());
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gp_Pnt2d oldp = localpos.Location();
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oldp.Translate(radius*dirn);
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dirn.Rotate(newAngle-M_PI);
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oldp.Translate(radius*dirn);
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//compute tangent vector in P1
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gp_Pnt tangvEndp = axis.Location() . Translated(dir.X() * axis.XDirection() + dir.Y() * axis.YDirection());
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gp_Vec tangv = gp_Vec(axis.Location(),tangvEndp);
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//cout << "dir = " << occ2ng(dir) << endl;
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cout << "tangv = " << occ2ng(tangv) << endl;
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//add arc
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return ArcTo (oldp.X(), oldp.Y(), tangv, newAngle*180/M_PI);
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}
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auto Rectangle (double l, double w)
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{
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Line (l);
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Rotate (90);
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Line(w);
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Rotate (90);
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Line (l);
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Rotate (90);
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Line(w);
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Rotate (90);
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wires.push_back (wire_builder.Wire());
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wire_builder = BRepBuilderAPI_MakeWire();
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return shared_from_this();
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}
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auto Close ()
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{
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LineTo (startpnt.X(), startpnt.Y());
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wires.push_back (wire_builder.Wire());
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wire_builder = BRepBuilderAPI_MakeWire();
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return shared_from_this();
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}
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auto Reverse()
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{
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wires.back().Reverse();
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return shared_from_this();
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}
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auto Offset(double d)
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{
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TopoDS_Wire wire = wires.back();
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wires.pop_back();
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BRepOffsetAPI_MakeOffset builder;
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builder.AddWire(wire);
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cout << "call builder" << endl;
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builder.Perform(d);
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cout << "perform is back" << endl;
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auto shape = builder.Shape();
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cout << "builder is back" << endl;
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cout << "Offset got shape type " << shape.ShapeType() << endl;
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wires.push_back (TopoDS::Wire(shape.Reversed()));
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return shared_from_this();
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}
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TopoDS_Wire Last()
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{
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return wires.back();
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}
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TopoDS_Face Face()
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{
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// crashes ????
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BRepBuilderAPI_MakeFace builder(surf, 1e-8);
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for (auto w : wires)
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builder.Add(w);
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return builder.Face();
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// only one wire, for now:
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// return BRepBuilderAPI_MakeFace(wires.back()).Face();
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}
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};
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DLL_HEADER void ExportNgOCCShapes(py::module &m)
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{
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cout << "export shapes" << endl;
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py::enum_<TopAbs_ShapeEnum>(m, "TopAbs_ShapeEnum", "Enumeration of all supported TopoDS_Shapes")
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.value("COMPOUND", TopAbs_COMPOUND) .value("COMPSOLID", TopAbs_COMPSOLID)
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.value("SOLID", TopAbs_SOLID) .value("SHELL", TopAbs_SHELL)
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.value("FACE", TopAbs_FACE) .value("WIRE", TopAbs_WIRE)
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.value("EDGE", TopAbs_EDGE) .value("VERTEX", TopAbs_VERTEX)
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.value("SHAPE", TopAbs_SHAPE)
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.export_values()
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;
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class ListOfShapes : public std::vector<TopoDS_Shape> { };
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py::class_<TopoDS_Shape> (m, "TopoDS_Shape")
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.def("__str__", [] (const TopoDS_Shape & shape)
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{
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stringstream str;
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#ifdef OCC_HAVE_DUMP_JSON
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shape.DumpJson(str);
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#endif // OCC_HAVE_DUMP_JSON
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return str.str();
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})
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.def("ShapeType", [] (const TopoDS_Shape & shape)
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{
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cout << "WARNING: pls use 'shape' instead of 'ShapeType()'" << endl;
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return shape.ShapeType();
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})
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.def_property_readonly("type", [](const TopoDS_Shape & shape)
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{ return shape.ShapeType(); })
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.def("SubShapes", [] (const TopoDS_Shape & shape, TopAbs_ShapeEnum & type)
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{
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/*
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py::list sub;
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TopExp_Explorer e;
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for (e.Init(shape, type); e.More(); e.Next())
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{
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switch (type)
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{
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case TopAbs_FACE:
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sub.append(TopoDS::Face(e.Current())); break;
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default:
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sub.append(e.Current());
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}
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}
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return sub;
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*/
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ListOfShapes sub;
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for (TopExp_Explorer e(shape, type); e.More(); e.Next())
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sub.push_back(e.Current());
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return sub;
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})
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.def_property_readonly("faces", [] (const TopoDS_Shape & shape)
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{
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ListOfShapes sub;
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for (TopExp_Explorer e(shape, TopAbs_FACE); e.More(); e.Next())
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sub.push_back(e.Current());
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return sub;
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})
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.def_property_readonly("edges", [] (const TopoDS_Shape & shape)
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{
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ListOfShapes sub;
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for (TopExp_Explorer e(shape, TopAbs_EDGE); e.More(); e.Next())
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sub.push_back(e.Current());
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return sub;
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})
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.def_property_readonly("vertices", [] (const TopoDS_Shape & shape)
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{
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ListOfShapes sub;
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for (TopExp_Explorer e(shape, TopAbs_VERTEX); e.More(); e.Next())
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sub.push_back(e.Current());
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return sub;
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})
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.def("Properties", [] (const TopoDS_Shape & shape)
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{
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GProp_GProps props;
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switch (shape.ShapeType())
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{
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case TopAbs_FACE:
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BRepGProp::SurfaceProperties (shape, props); break;
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default:
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BRepGProp::LinearProperties(shape, props);
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// throw Exception("Properties implemented only for FACE");
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}
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double mass = props.Mass();
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gp_Pnt center = props.CentreOfMass();
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return tuple( py::cast(mass), py::cast(center) );
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})
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.def_property_readonly("center", [](const TopoDS_Shape & shape) {
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GProp_GProps props;
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switch (shape.ShapeType())
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{
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case TopAbs_FACE:
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BRepGProp::SurfaceProperties (shape, props); break;
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default:
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BRepGProp::LinearProperties(shape, props);
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}
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return props.CentreOfMass();
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})
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.def("bc", [](const TopoDS_Shape & shape, const string & name)
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{
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for (TopExp_Explorer e(shape, TopAbs_FACE); e.More(); e.Next())
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OCCGeometry::global_shape_properties[e.Current().TShape()].name = name;
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return shape;
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})
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.def("mat", [](const TopoDS_Shape & shape, const string & name)
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{
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for (TopExp_Explorer e(shape, TopAbs_SOLID); e.More(); e.Next())
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OCCGeometry::global_shape_properties[e.Current().TShape()].name = name;
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return shape;
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})
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.def_property("name", [](const TopoDS_Shape & self) {
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if (auto name = OCCGeometry::global_shape_properties[self.TShape()].name)
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return *name;
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else
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return string();
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}, [](const TopoDS_Shape & self, string name) {
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OCCGeometry::global_shape_properties[self.TShape()].name = name;
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})
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.def_property("col", [](const TopoDS_Shape & self) {
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auto it = OCCGeometry::global_shape_properties.find(self.TShape());
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Vec<3> col(0.2, 0.2, 0.2);
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if (it != OCCGeometry::global_shape_properties.end() && it->second.col)
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col = *it->second.col; // .value();
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return std::vector<double> ( { col(0), col(1), col(2) } );
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}, [](const TopoDS_Shape & self, std::vector<double> c) {
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Vec<3> col(c[0], c[1], c[2]);
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OCCGeometry::global_shape_properties[self.TShape()].col = col;
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})
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.def_property("location",
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[](const TopoDS_Shape & shape) { return shape.Location(); },
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[](TopoDS_Shape & shape, const TopLoc_Location & loc)
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{ shape.Location(loc); })
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.def("Located", [](const TopoDS_Shape & shape, const TopLoc_Location & loc)
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{ return shape.Located(loc); })
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.def("__add__", [] (const TopoDS_Shape & shape1, const TopoDS_Shape & shape2) {
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return BRepAlgoAPI_Fuse(shape1, shape2).Shape();
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})
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.def("__mul__", [] (const TopoDS_Shape & shape1, const TopoDS_Shape & shape2) {
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// return BRepAlgoAPI_Common(shape1, shape2).Shape();
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BRepAlgoAPI_Common builder(shape1, shape2);
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#ifdef OCC_HAVE_HISTORY
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Handle(BRepTools_History) history = builder.History ();
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/*
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// work in progress ...
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TopTools_ListOfShape modlist = history->Modified(shape1);
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for (auto s : modlist)
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cout << "modified from list el: " << s.ShapeType() << endl;
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*/
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for (auto & s : { shape1, shape2 })
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for (TopExp_Explorer e(s, TopAbs_FACE); e.More(); e.Next())
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{
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auto & prop = OCCGeometry::global_shape_properties[e.Current().TShape()];
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for (auto smod : history->Modified(e.Current()))
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OCCGeometry::global_shape_properties[smod.TShape()].Merge(prop);
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}
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#endif // OCC_HAVE_HISTORY
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return builder.Shape();
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})
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.def("__sub__", [] (const TopoDS_Shape & shape1, const TopoDS_Shape & shape2) {
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// return BRepAlgoAPI_Cut(shape1, shape2).Shape();
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BRepAlgoAPI_Cut builder(shape1, shape2);
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#ifdef OCC_HAVE_HISTORY
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Handle(BRepTools_History) history = builder.History ();
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for (auto s : { shape1, shape2 })
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for (TopExp_Explorer e(s, TopAbs_FACE); e.More(); e.Next())
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{
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/*
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const string & name = OCCGeometry::global_shape_names[e.Current().TShape()];
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for (auto s : history->Modified(e.Current()))
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OCCGeometry::global_shape_names[s.TShape()] = name;
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*/
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/*
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auto it = OCCGeometry::global_shape_cols.find(e.Current().TShape());
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if (it != OCCGeometry::global_shape_cols.end())
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for (auto s : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_cols[s.TShape()] = it->second;
|
|
*/
|
|
auto propit = OCCGeometry::global_shape_properties.find(e.Current().TShape());
|
|
if (propit != OCCGeometry::global_shape_properties.end())
|
|
for (auto s : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_properties[s.TShape()].Merge(propit->second);
|
|
}
|
|
|
|
/*
|
|
for (TopExp_Explorer e(shape2, TopAbs_FACE); e.More(); e.Next())
|
|
{
|
|
auto it = OCCGeometry::global_shape_cols[e.Current().TShape()];
|
|
if (it != OCCGeometry::global_shape_cols.end())
|
|
for (auto s : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_cols[s.TShape()] = it->second;
|
|
}
|
|
*/
|
|
#endif // OCC_HAVE_HISTORY
|
|
|
|
|
|
return builder.Shape();
|
|
})
|
|
|
|
.def("Reversed", [](const TopoDS_Shape & shape) {
|
|
return CastShape(shape.Reversed()); })
|
|
|
|
.def("Extrude", [](const TopoDS_Shape & shape, double h) {
|
|
for (TopExp_Explorer e(shape, TopAbs_FACE); e.More(); e.Next())
|
|
{
|
|
Handle(Geom_Surface) surf = BRep_Tool::Surface (TopoDS::Face(e.Current()));
|
|
gp_Vec du, dv;
|
|
gp_Pnt p;
|
|
surf->D1 (0,0,p,du,dv);
|
|
return BRepPrimAPI_MakePrism (shape, h*du^dv).Shape();
|
|
}
|
|
throw Exception("no face found for extrusion");
|
|
})
|
|
|
|
.def("Revolve", [](const TopoDS_Shape & shape, const gp_Ax1 &A, const double D) {
|
|
for (TopExp_Explorer e(shape, TopAbs_FACE); e.More(); e.Next())
|
|
{
|
|
return BRepPrimAPI_MakeRevol (shape, A, D*M_PI/180).Shape();
|
|
}
|
|
throw Exception("no face found for revolve");
|
|
})
|
|
|
|
.def("Find", [](const TopoDS_Shape & shape, gp_Pnt p)
|
|
{
|
|
// find sub-shape contianing point
|
|
// BRepClass_FaceClassifier::Perform (p);
|
|
})
|
|
|
|
.def("MakeFillet", [](const TopoDS_Shape & shape, std::vector<TopoDS_Shape> edges, double r) {
|
|
BRepFilletAPI_MakeFillet mkFillet(shape);
|
|
for (auto e : edges)
|
|
mkFillet.Add (r, TopoDS::Edge(e));
|
|
return mkFillet.Shape();
|
|
})
|
|
|
|
.def("MakeThickSolid", [](const TopoDS_Shape & body, std::vector<TopoDS_Shape> facestoremove,
|
|
double offset, double tol) {
|
|
TopTools_ListOfShape faces;
|
|
for (auto f : facestoremove)
|
|
faces.Append(f);
|
|
|
|
BRepOffsetAPI_MakeThickSolid maker;
|
|
maker.MakeThickSolidByJoin(body, faces, offset, tol);
|
|
return maker.Shape();
|
|
})
|
|
|
|
.def("MakeTriangulation", [](const TopoDS_Shape & shape)
|
|
{
|
|
BRepTools::Clean (shape);
|
|
double deflection = 0.01;
|
|
BRepMesh_IncrementalMesh (shape, deflection, true);
|
|
})
|
|
|
|
.def("Triangulation", [](const TopoDS_Shape & shape)
|
|
{
|
|
// extracted from vsocc.cpp
|
|
TopoDS_Face face;
|
|
try
|
|
{
|
|
face = TopoDS::Face(shape);
|
|
}
|
|
catch (Standard_Failure & e)
|
|
{
|
|
e.Print (cout);
|
|
throw NgException ("Triangulation: shape is not a face");
|
|
}
|
|
|
|
/*
|
|
BRepTools::Clean (shape);
|
|
double deflection = 0.01;
|
|
BRepMesh_IncrementalMesh (shape, deflection, true);
|
|
*/
|
|
|
|
Handle(Geom_Surface) surf = BRep_Tool::Surface (face);
|
|
|
|
TopLoc_Location loc;
|
|
Handle(Poly_Triangulation) triangulation = BRep_Tool::Triangulation (face, loc);
|
|
|
|
if (triangulation.IsNull())
|
|
{
|
|
BRepTools::Clean (shape);
|
|
double deflection = 0.01;
|
|
BRepMesh_IncrementalMesh (shape, deflection, true);
|
|
triangulation = BRep_Tool::Triangulation (face, loc);
|
|
}
|
|
// throw Exception("Don't have a triangulation, call 'MakeTriangulation' first");
|
|
|
|
int ntriangles = triangulation -> NbTriangles();
|
|
Array< std::array<Point<3>,3> > triangles;
|
|
for (int j = 1; j <= ntriangles; j++)
|
|
{
|
|
Poly_Triangle triangle = (triangulation -> Triangles())(j);
|
|
std::array<Point<3>,3> pts;
|
|
for (int k = 0; k < 3; k++)
|
|
pts[k] = occ2ng( (triangulation -> Nodes())(triangle(k+1)).Transformed(loc) );
|
|
|
|
triangles.Append ( pts );
|
|
}
|
|
|
|
// return MoveToNumpyArray(triangles);
|
|
return triangles;
|
|
})
|
|
;
|
|
|
|
py::class_<TopoDS_Vertex, TopoDS_Shape> (m, "TopoDS_Vertex")
|
|
.def(py::init([] (const TopoDS_Shape & shape) {
|
|
return TopoDS::Vertex(shape);
|
|
}))
|
|
.def_property_readonly("p", [] (const TopoDS_Vertex & v) -> gp_Pnt {
|
|
return BRep_Tool::Pnt (v); })
|
|
;
|
|
|
|
py::class_<TopoDS_Edge, TopoDS_Shape> (m, "TopoDS_Edge")
|
|
.def(py::init([] (const TopoDS_Shape & shape) {
|
|
return TopoDS::Edge(shape);
|
|
}))
|
|
.def_property_readonly("start",
|
|
[](const TopoDS_Edge & e) {
|
|
double s0, s1;
|
|
auto curve = BRep_Tool::Curve(e, s0, s1);
|
|
return curve->Value(s0);
|
|
})
|
|
.def_property_readonly("end",
|
|
[](const TopoDS_Edge & e) {
|
|
double s0, s1;
|
|
auto curve = BRep_Tool::Curve(e, s0, s1);
|
|
return curve->Value(s1);
|
|
})
|
|
;
|
|
py::class_<TopoDS_Wire, TopoDS_Shape> (m, "TopoDS_Wire");
|
|
py::class_<TopoDS_Face, TopoDS_Shape> (m, "TopoDS_Face")
|
|
.def(py::init([] (const TopoDS_Shape & shape) {
|
|
return TopoDS::Face(shape);
|
|
}))
|
|
.def_property_readonly("surf", [] (TopoDS_Face face) -> Handle(Geom_Surface)
|
|
{
|
|
Handle(Geom_Surface) surf = BRep_Tool::Surface (face);
|
|
return surf;
|
|
})
|
|
.def("WorkPlane",[] (const TopoDS_Face & face) {
|
|
Handle(Geom_Surface) surf = BRep_Tool::Surface (face);
|
|
gp_Vec du, dv;
|
|
gp_Pnt p;
|
|
surf->D1 (0,0,p,du,dv);
|
|
auto ax = gp_Ax3(p, du^dv, du);
|
|
return make_shared<WorkPlane> (ax);
|
|
})
|
|
;
|
|
py::class_<TopoDS_Solid, TopoDS_Shape> (m, "TopoDS_Solid");
|
|
|
|
|
|
|
|
py::class_<Handle(Geom_Surface)> (m, "Geom_Surface")
|
|
.def("Value", [] (const Handle(Geom_Surface) & surf, double u, double v) {
|
|
return surf->Value(u, v); })
|
|
.def("D1", [] (const Handle(Geom_Surface) & surf, double u, double v) {
|
|
gp_Vec du, dv;
|
|
gp_Pnt p;
|
|
surf->D1 (u,v,p,du,dv);
|
|
return tuple(p,du,dv);
|
|
})
|
|
;
|
|
|
|
|
|
py::implicitly_convertible<TopoDS_Shape, TopoDS_Face>();
|
|
|
|
|
|
|
|
class ListOfShapesIterator
|
|
{
|
|
TopoDS_Shape * ptr;
|
|
public:
|
|
ListOfShapesIterator (TopoDS_Shape * aptr) : ptr(aptr) { }
|
|
ListOfShapesIterator operator++ () { return ListOfShapesIterator(++ptr); }
|
|
auto operator*() const { return CastShape(*ptr); }
|
|
bool operator!=(ListOfShapesIterator it2) const { return ptr != it2.ptr; }
|
|
bool operator==(ListOfShapesIterator it2) const { return ptr == it2.ptr; }
|
|
|
|
};
|
|
|
|
py::class_<ListOfShapes> (m, "ListOfShapes")
|
|
.def("__iter__", [](ListOfShapes &s) {
|
|
return py::make_iterator(ListOfShapesIterator(&*s.begin()),
|
|
ListOfShapesIterator(&*s.end()));
|
|
},
|
|
py::keep_alive<0, 1>() /* Essential: keep object alive while iterator exists */)
|
|
.def("__getitem__", [](const ListOfShapes & list, size_t i) {
|
|
return CastShape(list[i]); })
|
|
|
|
.def("__getitem__", [](const ListOfShapes & self, py::slice inds) {
|
|
size_t start, step, n, stop;
|
|
if (!inds.compute(self.size(), &start, &stop, &step, &n))
|
|
throw py::error_already_set();
|
|
ListOfShapes sub;
|
|
sub.reserve(n);
|
|
for (size_t i = 0; i < n; i++)
|
|
sub.push_back (self[start+i*step]);
|
|
return sub;
|
|
})
|
|
|
|
.def("__add__", [](const ListOfShapes & l1, const ListOfShapes & l2) {
|
|
ListOfShapes l = l1;
|
|
for (auto s : l2) l.push_back(s);
|
|
return l;
|
|
} )
|
|
.def("__add__", [](const ListOfShapes & l1, py::list l2) {
|
|
ListOfShapes l = l1;
|
|
for (auto s : l2) l.push_back(py::cast<TopoDS_Shape>(s));
|
|
return l;
|
|
} )
|
|
.def("__len__", [](const ListOfShapes & l) { return l.size(); })
|
|
.def("Max", [] (ListOfShapes & shapes, gp_Vec dir)
|
|
{
|
|
double maxval = -1e99;
|
|
TopoDS_Shape maxshape;
|
|
for (auto shape : shapes)
|
|
{
|
|
GProp_GProps props;
|
|
gp_Pnt center;
|
|
|
|
switch (shape.ShapeType())
|
|
{
|
|
case TopAbs_VERTEX:
|
|
center = BRep_Tool::Pnt (TopoDS::Vertex(shape)); break;
|
|
case TopAbs_FACE:
|
|
BRepGProp::SurfaceProperties (shape, props);
|
|
center = props.CentreOfMass();
|
|
break;
|
|
default:
|
|
BRepGProp::LinearProperties(shape, props);
|
|
center = props.CentreOfMass();
|
|
}
|
|
|
|
double val = center.X()*dir.X() + center.Y()*dir.Y() + center.Z() * dir.Z();
|
|
if (val > maxval)
|
|
{
|
|
maxval = val;
|
|
maxshape = shape;
|
|
}
|
|
}
|
|
return CastShape(maxshape);
|
|
})
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
py::class_<Handle(Geom2d_Curve)> (m, "Geom2d_Curve")
|
|
.def("Trim", [](Handle(Geom2d_Curve) curve, double u1, double u2) -> Handle(Geom2d_Curve)
|
|
{
|
|
return new Geom2d_TrimmedCurve (curve, u1, u2);
|
|
})
|
|
.def("Value", [](Handle(Geom2d_Curve) curve, double s) {
|
|
return curve->Value(s);
|
|
})
|
|
.def_property_readonly("start", [](Handle(Geom2d_Curve) curve) {
|
|
return curve->Value(curve->FirstParameter());
|
|
})
|
|
.def_property_readonly("end", [](Handle(Geom2d_Curve) curve) {
|
|
return curve->Value(curve->LastParameter());
|
|
})
|
|
;
|
|
|
|
|
|
m.def("Sphere", [] (gp_Pnt cc, double r) {
|
|
return BRepPrimAPI_MakeSphere (cc, r).Solid();
|
|
});
|
|
|
|
m.def("Cylinder", [] (gp_Pnt cpnt, gp_Dir cdir, double r, double h) {
|
|
return BRepPrimAPI_MakeCylinder (gp_Ax2(cpnt, cdir), r, h).Solid();
|
|
}, py::arg("p"), py::arg("d"), py::arg("r"), py::arg("h"));
|
|
m.def("Cylinder", [] (gp_Ax2 ax, double r, double h) {
|
|
return BRepPrimAPI_MakeCylinder (ax, r, h).Solid();
|
|
}, py::arg("axis"), py::arg("r"), py::arg("h"));
|
|
|
|
m.def("Box", [] (gp_Pnt cp1, gp_Pnt cp2) {
|
|
return BRepPrimAPI_MakeBox (cp1, cp2).Solid();
|
|
});
|
|
|
|
m.def("Prism", [] (const TopoDS_Shape & face, gp_Vec vec) {
|
|
return BRepPrimAPI_MakePrism (face, vec).Shape();
|
|
});
|
|
|
|
m.def("Revolve", [] (const TopoDS_Shape & face,const gp_Ax1 &A, const double D) {
|
|
//comvert angle from deg to rad
|
|
return BRepPrimAPI_MakeRevol (face, A, D*M_PI/180).Shape();
|
|
});
|
|
|
|
m.def("Pipe", [] (const TopoDS_Wire & spine, const TopoDS_Shape & profile) {
|
|
return BRepOffsetAPI_MakePipe (spine, profile).Shape();
|
|
}, py::arg("spine"), py::arg("profile"));
|
|
|
|
// Handle(Geom2d_Ellipse) anEllipse1 = new Geom2d_Ellipse(anAx2d, aMajor, aMinor);
|
|
m.def("Ellipse", [] (const gp_Ax2d & ax, double major, double minor) -> Handle(Geom2d_Curve)
|
|
{
|
|
return new Geom2d_Ellipse(ax, major, minor);
|
|
});
|
|
|
|
m.def("Segment", [](gp_Pnt2d p1, gp_Pnt2d p2) -> Handle(Geom2d_Curve) {
|
|
Handle(Geom2d_TrimmedCurve) curve = GCE2d_MakeSegment(p1, p2);
|
|
return curve;
|
|
// return BRepBuilderAPI_MakeEdge(curve).Edge();
|
|
// return GCE2d_MakeSegment(p1, p2);
|
|
});
|
|
|
|
m.def("Circle", [](gp_Pnt2d p1, double r) -> Handle(Geom2d_Curve) {
|
|
Handle(Geom2d_Circle) curve = GCE2d_MakeCircle(p1, r);
|
|
return curve;
|
|
// gp_Ax2d ax; ax.SetLocation(p1);
|
|
// return new Geom2d_Circle(ax, r);
|
|
});
|
|
|
|
m.def("Glue", [] (const std::vector<TopoDS_Shape> shapes) -> TopoDS_Shape
|
|
{
|
|
BOPAlgo_Builder builder;
|
|
for (auto & s : shapes)
|
|
{
|
|
for (TopExp_Explorer e(s, TopAbs_SOLID); e.More(); e.Next())
|
|
builder.AddArgument(e.Current());
|
|
if (s.ShapeType() == TopAbs_FACE)
|
|
builder.AddArgument(s);
|
|
}
|
|
|
|
builder.Perform();
|
|
|
|
#ifdef OCC_HAVE_HISTORY
|
|
Handle(BRepTools_History) history = builder.History ();
|
|
|
|
for (auto & s : shapes)
|
|
for (TopExp_Explorer e(s, TopAbs_SOLID); e.More(); e.Next())
|
|
{
|
|
auto prop = OCCGeometry::global_shape_properties[e.Current().TShape()];
|
|
for (auto mods : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_properties[mods.TShape()].Merge(prop);
|
|
}
|
|
/*
|
|
{
|
|
auto name = OCCGeometry::global_shape_names[e.Current().TShape()];
|
|
for (auto mods : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_names[mods.TShape()] = name;
|
|
}
|
|
*/
|
|
#endif // OCC_HAVE_HISTORY
|
|
|
|
return builder.Shape();
|
|
});
|
|
|
|
m.def("Glue", [] (TopoDS_Shape shape) -> TopoDS_Shape
|
|
{
|
|
BOPAlgo_Builder builder;
|
|
|
|
for (TopExp_Explorer e(shape, TopAbs_SOLID); e.More(); e.Next())
|
|
builder.AddArgument(e.Current());
|
|
|
|
builder.Perform();
|
|
|
|
if (builder.HasErrors())
|
|
builder.DumpErrors(cout);
|
|
if (builder.HasWarnings())
|
|
builder.DumpWarnings(cout);
|
|
|
|
#ifdef OCC_HAVE_HISTORY
|
|
Handle(BRepTools_History) history = builder.History ();
|
|
|
|
for (TopExp_Explorer e(shape, TopAbs_SOLID); e.More(); e.Next())
|
|
{
|
|
auto prop = OCCGeometry::global_shape_properties[e.Current().TShape()];
|
|
for (auto mods : history->Modified(e.Current()))
|
|
OCCGeometry::global_shape_properties[mods.TShape()].Merge(prop);
|
|
}
|
|
#endif // OCC_HAVE_HISTORY
|
|
|
|
return builder.Shape();
|
|
});
|
|
|
|
|
|
// py::class_<Handle(Geom_TrimmedCurve)> (m, "Geom_TrimmedCurve")
|
|
// ;
|
|
|
|
m.def("Segment", [](gp_Pnt p1, gp_Pnt p2) {
|
|
Handle(Geom_TrimmedCurve) curve = GC_MakeSegment(p1, p2);
|
|
return BRepBuilderAPI_MakeEdge(curve).Edge();
|
|
});
|
|
m.def("Circle", [](gp_Pnt c, gp_Dir n, double r) {
|
|
Handle(Geom_Circle) curve = GC_MakeCircle (c, n, r);
|
|
return BRepBuilderAPI_MakeEdge(curve).Edge();
|
|
});
|
|
|
|
m.def("ArcOfCircle", [](gp_Pnt p1, gp_Pnt p2, gp_Pnt p3) {
|
|
Handle(Geom_TrimmedCurve) curve = GC_MakeArcOfCircle(p1, p2, p3);
|
|
return BRepBuilderAPI_MakeEdge(curve).Edge();
|
|
}, py::arg("p1"), py::arg("p2"), py::arg("p3"));
|
|
|
|
m.def("ArcOfCircle", [](gp_Pnt p1, gp_Vec v, gp_Pnt p2) {
|
|
Handle(Geom_TrimmedCurve) curve = GC_MakeArcOfCircle(p1, v, p2);
|
|
return BRepBuilderAPI_MakeEdge(curve).Edge();
|
|
}, py::arg("p1"), py::arg("v"), py::arg("p2"));
|
|
|
|
|
|
m.def("Edge", [](Handle(Geom2d_Curve) curve2d, TopoDS_Face face) {
|
|
auto edge = BRepBuilderAPI_MakeEdge(curve2d, BRep_Tool::Surface (face)).Edge();
|
|
BRepLib::BuildCurves3d(edge);
|
|
return edge;
|
|
});
|
|
|
|
m.def("Wire", [](std::vector<TopoDS_Shape> edges) {
|
|
BRepBuilderAPI_MakeWire builder;
|
|
for (auto s : edges)
|
|
switch (s.ShapeType())
|
|
{
|
|
case TopAbs_EDGE:
|
|
try
|
|
{
|
|
builder.Add(TopoDS::Edge(s)); break;
|
|
}
|
|
catch (Standard_Failure & e)
|
|
{
|
|
e.Print(cout);
|
|
throw NgException("cannot add to wire");
|
|
}
|
|
case TopAbs_WIRE:
|
|
builder.Add(TopoDS::Wire(s)); break;
|
|
default:
|
|
throw Exception("can make wire only from edges and wires");
|
|
}
|
|
try
|
|
{
|
|
return builder.Wire();
|
|
}
|
|
catch (Standard_Failure & e)
|
|
{
|
|
e.Print(cout);
|
|
throw NgException("error in wire builder");
|
|
}
|
|
});
|
|
|
|
m.def("Face", [](TopoDS_Wire wire) {
|
|
return BRepBuilderAPI_MakeFace(wire).Face();
|
|
}, py::arg("w"));
|
|
m.def("Face", [](const TopoDS_Face & face, const TopoDS_Wire & wire) {
|
|
// return BRepBuilderAPI_MakeFace(face, wire).Face();
|
|
return BRepBuilderAPI_MakeFace(BRep_Tool::Surface (face), wire).Face();
|
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}, py::arg("f"), py::arg("w"));
|
|
m.def("Face", [](const TopoDS_Face & face, std::vector<TopoDS_Wire> wires) {
|
|
// return BRepBuilderAPI_MakeFace(face, wire).Face();
|
|
cout << "build from list of wires" << endl;
|
|
auto surf = BRep_Tool::Surface (face);
|
|
BRepBuilderAPI_MakeFace builder(surf, 1e-8);
|
|
for (auto w : wires)
|
|
builder.Add(w);
|
|
return builder.Face();
|
|
}, py::arg("f"), py::arg("w"));
|
|
/*
|
|
not yet working .... ?
|
|
m.def("Face", [](std::vector<TopoDS_Wire> wires) {
|
|
cout << "face from wires" << endl;
|
|
BRepBuilderAPI_MakeFace builder;
|
|
for (auto w : wires)
|
|
{
|
|
cout << "add wire" << endl;
|
|
builder.Add(w);
|
|
}
|
|
return builder.Face();
|
|
}, py::arg("w"));
|
|
*/
|
|
|
|
m.def("MakeFillet", [](TopoDS_Shape shape, std::vector<TopoDS_Shape> edges, double r) {
|
|
throw Exception("call 'shape.MakeFilled'");
|
|
BRepFilletAPI_MakeFillet mkFillet(shape);
|
|
for (auto e : edges)
|
|
mkFillet.Add (r, TopoDS::Edge(e));
|
|
return mkFillet.Shape();
|
|
});
|
|
|
|
m.def("MakeThickSolid", [](TopoDS_Shape body, std::vector<TopoDS_Shape> facestoremove,
|
|
double offset, double tol) {
|
|
throw Exception("call 'shape.MakeThickSolid'");
|
|
TopTools_ListOfShape faces;
|
|
for (auto f : facestoremove)
|
|
faces.Append(f);
|
|
|
|
BRepOffsetAPI_MakeThickSolid maker;
|
|
maker.MakeThickSolidByJoin(body, faces, offset, tol);
|
|
return maker.Shape();
|
|
});
|
|
|
|
m.def("ThruSections", [](std::vector<TopoDS_Shape> wires)
|
|
{
|
|
BRepOffsetAPI_ThruSections aTool(Standard_True);
|
|
for (auto shape : wires)
|
|
aTool.AddWire(TopoDS::Wire(shape));
|
|
aTool.CheckCompatibility(Standard_False);
|
|
return aTool.Shape();
|
|
});
|
|
|
|
|
|
|
|
py::class_<WorkPlane, shared_ptr<WorkPlane>> (m, "WorkPlane")
|
|
.def(py::init<gp_Ax3, gp_Ax2d>(), py::arg("axis"), py::arg("pos")=gp_Ax2d())
|
|
.def("MoveTo", &WorkPlane::MoveTo)
|
|
.def("Direction", &WorkPlane::Direction)
|
|
.def("LineTo", &WorkPlane::LineTo)
|
|
.def("ArcTo", &WorkPlane::ArcTo)
|
|
.def("Arc", &WorkPlane::Arc)
|
|
.def("Rotate", &WorkPlane::Rotate)
|
|
.def("Line", [](WorkPlane&wp,double l) { return wp.Line(l); })
|
|
.def("Line", [](WorkPlane&wp,double h,double v) { return wp.Line(h,v); })
|
|
.def("Rectangle", &WorkPlane::Rectangle)
|
|
.def("Offset", &WorkPlane::Offset)
|
|
.def("Reverse", &WorkPlane::Reverse)
|
|
.def("Close", &WorkPlane::Close)
|
|
.def("Last", &WorkPlane::Last)
|
|
.def("Face", &WorkPlane::Face)
|
|
;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
#endif // OCCGEOMETRY
|
|
#endif // NG_PYTHON
|