ForkMaster/netgen
1
0
Fork 0
mirror of https://github.com/NGSolve/netgen.git synced 2024-12-26 05:50:32 +05:00
Code Issues Packages Projects Releases Wiki Activity
a53149131e
netgen/libsrc/occ/occgeom.cpp

1613 lines
49 KiB
C++
Raw Normal View History

* Converted the minimum edge length used for subdividing geometry edges during the meshing phase into a user defined parameter accessible from the GUI
2014-01-26 03:17:16 +06:00
#ifdef OCCGEOMETRY
#include <mystdlib.h>
#include <occgeom.hpp>
#include "ShapeAnalysis_ShapeTolerance.hxx"
#include "ShapeAnalysis_ShapeContents.hxx"
#include "ShapeAnalysis_CheckSmallFace.hxx"
#include "ShapeAnalysis_DataMapOfShapeListOfReal.hxx"
#include "ShapeAnalysis_Surface.hxx"
#include "BRepAlgoAPI_Fuse.hxx"
#include "BRepCheck_Analyzer.hxx"
#include "BRepLib.hxx"
#include "ShapeBuild_ReShape.hxx"
#include "ShapeFix.hxx"
#include "ShapeFix_FixSmallFace.hxx"
#include "Partition_Spliter.hxx"
namespace netgen
{
void OCCGeometry :: PrintNrShapes ()
{
TopExp_Explorer e;
int count = 0;
for (e.Init(shape, TopAbs_COMPSOLID); e.More(); e.Next()) count++;
cout << "CompSolids: " << count << endl;
cout << "Solids : " << somap.Extent() << endl;
cout << "Shells : " << shmap.Extent() << endl;
cout << "Faces : " << fmap.Extent() << endl;
cout << "Edges : " << emap.Extent() << endl;
cout << "Vertices : " << vmap.Extent() << endl;
}
void PrintContents (OCCGeometry * geom)
{
ShapeAnalysis_ShapeContents cont;
cont.Clear();
cont.Perform(geom->shape);
(*testout) << "OCC CONTENTS" << endl;
(*testout) << "============" << endl;
(*testout) << "SOLIDS : " << cont.NbSolids() << endl;
(*testout) << "SHELLS : " << cont.NbShells() << endl;
(*testout) << "FACES : " << cont.NbFaces() << endl;
(*testout) << "WIRES : " << cont.NbWires() << endl;
(*testout) << "EDGES : " << cont.NbEdges() << endl;
(*testout) << "VERTICES : " << cont.NbVertices() << endl;
TopExp_Explorer e;
int count = 0;
for (e.Init(geom->shape, TopAbs_COMPOUND); e.More(); e.Next())
count++;
(*testout) << "Compounds: " << count << endl;
count = 0;
for (e.Init(geom->shape, TopAbs_COMPSOLID); e.More(); e.Next())
count++;
(*testout) << "CompSolids: " << count << endl;
(*testout) << endl;
cout << "Highest entry in topology hierarchy: " << endl;
if (count)
cout << count << " composite solid(s)" << endl;
else
if (geom->somap.Extent())
cout << geom->somap.Extent() << " solid(s)" << endl;
else
if (geom->shmap.Extent())
cout << geom->shmap.Extent() << " shells(s)" << endl;
else
if (geom->fmap.Extent())
cout << geom->fmap.Extent() << " face(s)" << endl;
else
if (geom->wmap.Extent())
cout << geom->wmap.Extent() << " wire(s)" << endl;
else
if (geom->emap.Extent())
cout << geom->emap.Extent() << " edge(s)" << endl;
else
if (geom->vmap.Extent())
cout << geom->vmap.Extent() << " vertices(s)" << endl;
else
cout << "no entities" << endl;
}
void OCCGeometry :: HealGeometry ()
{
int nrc = 0, nrcs = 0,
nrso = somap.Extent(),
nrsh = shmap.Extent(),
nrf = fmap.Extent(),
nrw = wmap.Extent(),
nre = emap.Extent(),
nrv = vmap.Extent();
TopExp_Explorer exp0;
TopExp_Explorer exp1;
for (exp0.Init(shape, TopAbs_COMPOUND); exp0.More(); exp0.Next()) nrc++;
for (exp0.Init(shape, TopAbs_COMPSOLID); exp0.More(); exp0.Next()) nrcs++;
double surfacecont = 0;
{
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
rebuild->Remove(edge, false);
}
shape = rebuild->Apply(shape);
}
BuildFMap();
for (exp0.Init (shape, TopAbs_FACE); exp0.More(); exp0.Next())
{
TopoDS_Face face = TopoDS::Face(exp0.Current());
GProp_GProps system;
BRepGProp::SurfaceProperties(face, system);
surfacecont += system.Mass();
}
cout << "Starting geometry healing procedure (tolerance: " << tolerance << ")" << endl
<< "-----------------------------------" << endl;
{
cout << endl << "- repairing faces" << endl;
Handle(ShapeFix_Face) sff;
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp0.Init (shape, TopAbs_FACE); exp0.More(); exp0.Next())
{
// Variable to hold the colour (if there exists one) of
// the current face being processed
Quantity_Color face_colour;
TopoDS_Face face = TopoDS::Face (exp0.Current());
if(face_colours.IsNull()
|| (!(face_colours->GetColor(face,XCAFDoc_ColorSurf,face_colour))))
{
// Set the default face colour to green (Netgen Standard)
// if no colour has been defined for the face
face_colour = Quantity_Color(0.0,1.0,0.0,Quantity_TOC_RGB);
}
sff = new ShapeFix_Face (face);
sff->FixAddNaturalBoundMode() = Standard_True;
sff->FixSmallAreaWireMode() = Standard_True;
sff->Perform();
if(sff->Status(ShapeExtend_DONE1) ||
sff->Status(ShapeExtend_DONE2) ||
sff->Status(ShapeExtend_DONE3) ||
sff->Status(ShapeExtend_DONE4) ||
sff->Status(ShapeExtend_DONE5))
{
cout << "repaired face " << fmap.FindIndex(face) << " ";
if(sff->Status(ShapeExtend_DONE1))
cout << "(some wires are fixed)" <<endl;
else if(sff->Status(ShapeExtend_DONE2))
cout << "(orientation of wires fixed)" <<endl;
else if(sff->Status(ShapeExtend_DONE3))
cout << "(missing seam added)" <<endl;
else if(sff->Status(ShapeExtend_DONE4))
cout << "(small area wire removed)" <<endl;
else if(sff->Status(ShapeExtend_DONE5))
cout << "(natural bounds added)" <<endl;
TopoDS_Face newface = sff->Face();
rebuild->Replace(face, newface, Standard_False);
}
// Set the original colour of the face to the newly created
// face (after the healing process)
face = TopoDS::Face (exp0.Current());
face_colours->SetColor(face,face_colour,XCAFDoc_ColorSurf);
}
shape = rebuild->Apply(shape);
}
{
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
rebuild->Remove(edge, false);
}
shape = rebuild->Apply(shape);
}
if (fixsmalledges)
{
cout << endl << "- fixing small edges" << endl;
Handle(ShapeFix_Wire) sfw;
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp0.Init (shape, TopAbs_FACE); exp0.More(); exp0.Next())
{
TopoDS_Face face = TopoDS::Face(exp0.Current());
for (exp1.Init (face, TopAbs_WIRE); exp1.More(); exp1.Next())
{
TopoDS_Wire oldwire = TopoDS::Wire(exp1.Current());
sfw = new ShapeFix_Wire (oldwire, face ,tolerance);
sfw->ModifyTopologyMode() = Standard_True;
sfw->ClosedWireMode() = Standard_True;
bool replace = false;
replace = sfw->FixReorder() || replace;
replace = sfw->FixConnected() || replace;
if (sfw->FixSmall (Standard_False, tolerance) && ! (sfw->StatusSmall(ShapeExtend_FAIL1) ||
sfw->StatusSmall(ShapeExtend_FAIL2) ||
sfw->StatusSmall(ShapeExtend_FAIL3)))
{
cout << "Fixed small edge in wire " << wmap.FindIndex (oldwire) << endl;
replace = true;
}
else if (sfw->StatusSmall(ShapeExtend_FAIL1))
cerr << "Failed to fix small edge in wire " << wmap.FindIndex (oldwire)
<< ", edge cannot be checked (no 3d curve and no pcurve)" << endl;
else if (sfw->StatusSmall(ShapeExtend_FAIL2))
cerr << "Failed to fix small edge in wire " << wmap.FindIndex (oldwire)
<< ", edge is null-length and has different vertives at begin and end, and lockvtx is True or ModifiyTopologyMode is False" << endl;
else if (sfw->StatusSmall(ShapeExtend_FAIL3))
cerr << "Failed to fix small edge in wire " << wmap.FindIndex (oldwire)
<< ", CheckConnected has failed" << endl;
replace = sfw->FixEdgeCurves() || replace;
replace = sfw->FixDegenerated() || replace;
replace = sfw->FixSelfIntersection() || replace;
replace = sfw->FixLacking(Standard_True) || replace;
if(replace)
{
TopoDS_Wire newwire = sfw->Wire();
rebuild->Replace(oldwire, newwire, Standard_False);
}
//delete sfw; sfw = NULL;
}
}
shape = rebuild->Apply(shape);
{
BuildFMap();
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if (vmap.FindIndex(TopExp::FirstVertex (edge)) ==
vmap.FindIndex(TopExp::LastVertex (edge)))
{
GProp_GProps system;
BRepGProp::LinearProperties(edge, system);
if (system.Mass() < tolerance)
{
cout << "removing degenerated edge " << emap.FindIndex(edge)
<< " from vertex " << vmap.FindIndex(TopExp::FirstVertex (edge))
<< " to vertex " << vmap.FindIndex(TopExp::LastVertex (edge)) << endl;
rebuild->Remove(edge, false);
}
}
}
shape = rebuild->Apply(shape);
//delete rebuild; rebuild = NULL;
}
{
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
rebuild->Remove(edge, false);
}
shape = rebuild->Apply(shape);
}
Handle(ShapeFix_Wireframe) sfwf = new ShapeFix_Wireframe;
sfwf->SetPrecision(tolerance);
sfwf->Load (shape);
sfwf->ModeDropSmallEdges() = Standard_True;
sfwf->SetPrecision(boundingbox.Diam());
if (sfwf->FixWireGaps())
{
cout << endl << "- fixing wire gaps" << endl;
if (sfwf->StatusWireGaps(ShapeExtend_OK)) cout << "no gaps found" << endl;
if (sfwf->StatusWireGaps(ShapeExtend_DONE1)) cout << "some 2D gaps fixed" << endl;
if (sfwf->StatusWireGaps(ShapeExtend_DONE2)) cout << "some 3D gaps fixed" << endl;
if (sfwf->StatusWireGaps(ShapeExtend_FAIL1)) cout << "failed to fix some 2D gaps" << endl;
if (sfwf->StatusWireGaps(ShapeExtend_FAIL2)) cout << "failed to fix some 3D gaps" << endl;
}
sfwf->SetPrecision(tolerance);
{
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
cout << "degenerated edge at position 4" << endl;
}
}
if (sfwf->FixSmallEdges())
{
cout << endl << "- fixing wire frames" << endl;
if (sfwf->StatusSmallEdges(ShapeExtend_OK)) cout << "no small edges found" << endl;
if (sfwf->StatusSmallEdges(ShapeExtend_DONE1)) cout << "some small edges fixed" << endl;
if (sfwf->StatusSmallEdges(ShapeExtend_FAIL1)) cout << "failed to fix some small edges" << endl;
}
shape = sfwf->Shape();
//delete sfwf; sfwf = NULL;
//delete rebuild; rebuild = NULL;
}
{
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
cout << "degenerated edge at position 5" << endl;
}
}
if (fixspotstripfaces)
{
cout << endl << "- fixing spot and strip faces" << endl;
Handle(ShapeFix_FixSmallFace) sffsm = new ShapeFix_FixSmallFace();
sffsm -> Init (shape);
sffsm -> SetPrecision (tolerance);
sffsm -> Perform();
shape = sffsm -> FixShape();
//delete sffsm; sffsm = NULL;
}
{
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
cout << "degenerated edge at position 6" << endl;
}
}
if (sewfaces)
{
cout << endl << "- sewing faces" << endl;
BRepOffsetAPI_Sewing sewedObj(tolerance);
for (exp0.Init (shape, TopAbs_FACE); exp0.More(); exp0.Next())
{
TopoDS_Face face = TopoDS::Face (exp0.Current());
sewedObj.Add (face);
}
sewedObj.Perform();
if (!sewedObj.SewedShape().IsNull())
shape = sewedObj.SewedShape();
else
cout << " not possible";
}
{
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Apply(shape);
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
rebuild->Remove(edge, false);
}
shape = rebuild->Apply(shape);
}
if (makesolids)
{
cout << endl << "- making solids" << endl;
BRepBuilderAPI_MakeSolid ms;
int count = 0;
for (exp0.Init(shape, TopAbs_SHELL); exp0.More(); exp0.Next())
{
count++;
ms.Add (TopoDS::Shell(exp0.Current()));
}
if (!count)
{
cout << " not possible (no shells)" << endl;
}
else
{
BRepCheck_Analyzer ba(ms);
if (ba.IsValid ())
{
Handle(ShapeFix_Shape) sfs = new ShapeFix_Shape;
sfs->Init (ms);
sfs->SetPrecision(tolerance);
sfs->SetMaxTolerance(tolerance);
sfs->Perform();
shape = sfs->Shape();
for (exp0.Init(shape, TopAbs_SOLID); exp0.More(); exp0.Next())
{
TopoDS_Solid solid = TopoDS::Solid(exp0.Current());
TopoDS_Solid newsolid = solid;
BRepLib::OrientClosedSolid (newsolid);
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
// rebuild->Apply(shape);
rebuild->Replace(solid, newsolid, Standard_False);
TopoDS_Shape newshape = rebuild->Apply(shape, TopAbs_COMPSOLID);//, 1);
// TopoDS_Shape newshape = rebuild->Apply(shape);
shape = newshape;
}
//delete sfs; sfs = NULL;
}
else
cout << " not possible" << endl;
}
}
if (splitpartitions)
{
cout << "- running SALOME partition splitter" << endl;
TopExp_Explorer e2;
Partition_Spliter ps;
int count = 0;
for (e2.Init (shape, TopAbs_SOLID);
e2.More(); e2.Next())
{
count++;
ps.AddShape (e2.Current());
}
ps.Compute();
shape = ps.Shape();
cout << " before: " << count << " solids" << endl;
count = 0;
for (e2.Init (shape, TopAbs_SOLID);
e2.More(); e2.Next()) count++;
cout << " after : " << count << " solids" << endl;
}
BuildFMap();
{
for (exp1.Init (shape, TopAbs_EDGE); exp1.More(); exp1.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
if ( BRep_Tool::Degenerated(edge) )
cout << "degenerated edge at position 8" << endl;
}
}
double newsurfacecont = 0;
for (exp0.Init (shape, TopAbs_FACE); exp0.More(); exp0.Next())
{
TopoDS_Face face = TopoDS::Face(exp0.Current());
GProp_GProps system;
BRepGProp::SurfaceProperties(face, system);
newsurfacecont += system.Mass();
}
int nnrc = 0, nnrcs = 0,
nnrso = somap.Extent(),
nnrsh = shmap.Extent(),
nnrf = fmap.Extent(),
nnrw = wmap.Extent(),
nnre = emap.Extent(),
nnrv = vmap.Extent();
for (exp0.Init(shape, TopAbs_COMPOUND); exp0.More(); exp0.Next()) nnrc++;
for (exp0.Init(shape, TopAbs_COMPSOLID); exp0.More(); exp0.Next()) nnrcs++;
cout << "-----------------------------------" << endl;
cout << "Compounds : " << nnrc << " (" << nrc << ")" << endl;
cout << "Composite solids: " << nnrcs << " (" << nrcs << ")" << endl;
cout << "Solids : " << nnrso << " (" << nrso << ")" << endl;
cout << "Shells : " << nnrsh << " (" << nrsh << ")" << endl;
cout << "Wires : " << nnrw << " (" << nrw << ")" << endl;
cout << "Faces : " << nnrf << " (" << nrf << ")" << endl;
cout << "Edges : " << nnre << " (" << nre << ")" << endl;
cout << "Vertices : " << nnrv << " (" << nrv << ")" << endl;
cout << endl;
cout << "Totol surface area : " << newsurfacecont << " (" << surfacecont << ")" << endl;
cout << endl;
}
void OCCGeometry :: BuildFMap()
{
somap.Clear();
shmap.Clear();
fmap.Clear();
wmap.Clear();
emap.Clear();
vmap.Clear();
TopExp_Explorer exp0, exp1, exp2, exp3, exp4, exp5;
for (exp0.Init(shape, TopAbs_COMPOUND);
exp0.More(); exp0.Next())
{
TopoDS_Compound compound = TopoDS::Compound (exp0.Current());
(*testout) << "compound" << endl;
int i = 0;
for (exp1.Init(compound, TopAbs_SHELL);
exp1.More(); exp1.Next())
{
(*testout) << "shell " << ++i << endl;
}
}
for (exp0.Init(shape, TopAbs_SOLID);
exp0.More(); exp0.Next())
{
TopoDS_Solid solid = TopoDS::Solid (exp0.Current());
if (somap.FindIndex(solid) < 1)
{
somap.Add (solid);
for (exp1.Init(solid, TopAbs_SHELL);
exp1.More(); exp1.Next())
{
TopoDS_Shell shell = TopoDS::Shell (exp1.Current());
if (shmap.FindIndex(shell) < 1)
{
shmap.Add (shell);
for (exp2.Init(shell, TopAbs_FACE);
exp2.More(); exp2.Next())
{
TopoDS_Face face = TopoDS::Face(exp2.Current());
if (fmap.FindIndex(face) < 1)
{
fmap.Add (face);
(*testout) << "face " << fmap.FindIndex(face) << " ";
(*testout) << ((face.Orientation() == TopAbs_REVERSED) ? "-" : "+") << ", ";
(*testout) << ((exp2.Current().Orientation() == TopAbs_REVERSED) ? "-" : "+") << endl;
for (exp3.Init(exp2.Current(), TopAbs_WIRE);
exp3.More(); exp3.Next())
{
TopoDS_Wire wire = TopoDS::Wire (exp3.Current());
if (wmap.FindIndex(wire) < 1)
{
wmap.Add (wire);
for (exp4.Init(exp3.Current(), TopAbs_EDGE);
exp4.More(); exp4.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp4.Current());
if (emap.FindIndex(edge) < 1)
{
emap.Add (edge);
for (exp5.Init(exp4.Current(), TopAbs_VERTEX);
exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
}
}
}
}
}
}
}
}
}
}
// Free Shells
for (exp1.Init(shape, TopAbs_SHELL, TopAbs_SOLID); exp1.More(); exp1.Next())
{
TopoDS_Shell shell = TopoDS::Shell(exp1.Current());
if (shmap.FindIndex(shell) < 1)
{
shmap.Add (shell);
(*testout) << "shell " << shmap.FindIndex(shell) << " ";
(*testout) << ((shell.Orientation() == TopAbs_REVERSED) ? "-" : "+") << ", ";
(*testout) << ((exp1.Current().Orientation() == TopAbs_REVERSED) ? "-" : "+") << endl;
for (exp2.Init(shell, TopAbs_FACE); exp2.More(); exp2.Next())
{
TopoDS_Face face = TopoDS::Face(exp2.Current());
if (fmap.FindIndex(face) < 1)
{
fmap.Add (face);
for (exp3.Init(face, TopAbs_WIRE); exp3.More(); exp3.Next())
{
TopoDS_Wire wire = TopoDS::Wire (exp3.Current());
if (wmap.FindIndex(wire) < 1)
{
wmap.Add (wire);
for (exp4.Init(wire, TopAbs_EDGE); exp4.More(); exp4.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp4.Current());
if (emap.FindIndex(edge) < 1)
{
emap.Add (edge);
for (exp5.Init(edge, TopAbs_VERTEX); exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
}
}
}
}
}
}
}
}
// Free Faces
for (exp2.Init(shape, TopAbs_FACE, TopAbs_SHELL); exp2.More(); exp2.Next())
{
TopoDS_Face face = TopoDS::Face(exp2.Current());
if (fmap.FindIndex(face) < 1)
{
fmap.Add (face);
for (exp3.Init(exp2.Current(), TopAbs_WIRE); exp3.More(); exp3.Next())
{
TopoDS_Wire wire = TopoDS::Wire (exp3.Current());
if (wmap.FindIndex(wire) < 1)
{
wmap.Add (wire);
for (exp4.Init(exp3.Current(), TopAbs_EDGE); exp4.More(); exp4.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp4.Current());
if (emap.FindIndex(edge) < 1)
{
emap.Add (edge);
for (exp5.Init(exp4.Current(), TopAbs_VERTEX); exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
}
}
}
}
}
}
// Free Wires
for (exp3.Init(shape, TopAbs_WIRE, TopAbs_FACE); exp3.More(); exp3.Next())
{
TopoDS_Wire wire = TopoDS::Wire (exp3.Current());
if (wmap.FindIndex(wire) < 1)
{
wmap.Add (wire);
for (exp4.Init(exp3.Current(), TopAbs_EDGE); exp4.More(); exp4.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp4.Current());
if (emap.FindIndex(edge) < 1)
{
emap.Add (edge);
for (exp5.Init(exp4.Current(), TopAbs_VERTEX); exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
}
}
}
}
// Free Edges
for (exp4.Init(shape, TopAbs_EDGE, TopAbs_WIRE); exp4.More(); exp4.Next())
{
TopoDS_Edge edge = TopoDS::Edge(exp4.Current());
if (emap.FindIndex(edge) < 1)
{
emap.Add (edge);
for (exp5.Init(exp4.Current(), TopAbs_VERTEX); exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
}
}
// Free Vertices
for (exp5.Init(shape, TopAbs_VERTEX, TopAbs_EDGE); exp5.More(); exp5.Next())
{
TopoDS_Vertex vertex = TopoDS::Vertex(exp5.Current());
if (vmap.FindIndex(vertex) < 1)
vmap.Add (vertex);
}
facemeshstatus.DeleteAll();
facemeshstatus.SetSize (fmap.Extent());
facemeshstatus = 0;
// Philippose - 15/01/2009
face_maxh.DeleteAll();
face_maxh.SetSize (fmap.Extent());
face_maxh = mparam.maxh;
// Philippose - 15/01/2010
face_maxh_modified.DeleteAll();
face_maxh_modified.SetSize(fmap.Extent());
face_maxh_modified = 0;
// Philippose - 17/01/2009
face_sel_status.DeleteAll();
face_sel_status.SetSize (fmap.Extent());
face_sel_status = 0;
fvispar.SetSize (fmap.Extent());
evispar.SetSize (emap.Extent());
vvispar.SetSize (vmap.Extent());
fsingular.SetSize (fmap.Extent());
esingular.SetSize (emap.Extent());
vsingular.SetSize (vmap.Extent());
fsingular = esingular = vsingular = false;
}
void OCCGeometry :: SewFaces ()
{
(*testout) << "Trying to sew faces ..." << endl;
cout << "Trying to sew faces ..." << flush;
BRepOffsetAPI_Sewing sewedObj(1);
for (int i = 1; i <= fmap.Extent(); i++)
{
TopoDS_Face face = TopoDS::Face (fmap(i));
sewedObj.Add (face);
}
sewedObj.Perform();
if (!sewedObj.SewedShape().IsNull())
{
shape = sewedObj.SewedShape();
cout << " done" << endl;
}
else
cout << " not possible";
}
void OCCGeometry :: MakeSolid ()
{
TopExp_Explorer exp0;
(*testout) << "Trying to build solids ..." << endl;
cout << "Trying to build solids ..." << flush;
BRepBuilderAPI_MakeSolid ms;
int count = 0;
for (exp0.Init(shape, TopAbs_SHELL); exp0.More(); exp0.Next())
{
count++;
ms.Add (TopoDS::Shell(exp0.Current()));
}
if (!count)
{
cout << " not possible (no shells)" << endl;
return;
}
BRepCheck_Analyzer ba(ms);
if (ba.IsValid ())
{
Handle(ShapeFix_Shape) sfs = new ShapeFix_Shape;
sfs->Init (ms);
sfs->SetPrecision(1e-5);
sfs->SetMaxTolerance(1e-5);
sfs->Perform();
shape = sfs->Shape();
for (exp0.Init(shape, TopAbs_SOLID); exp0.More(); exp0.Next())
{
TopoDS_Solid solid = TopoDS::Solid(exp0.Current());
TopoDS_Solid newsolid = solid;
BRepLib::OrientClosedSolid (newsolid);
Handle_ShapeBuild_ReShape rebuild = new ShapeBuild_ReShape;
rebuild->Replace(solid, newsolid, Standard_False);
TopoDS_Shape newshape = rebuild->Apply(shape, TopAbs_SHAPE, 1);
shape = newshape;
}
cout << " done" << endl;
}
else
cout << " not possible" << endl;
}
void OCCGeometry :: BuildVisualizationMesh (double deflection)
{
cout << "Preparing visualization (deflection = " << deflection << ") ... " << flush;
BRepTools::Clean (shape);
// BRepMesh_IncrementalMesh::
BRepMesh_IncrementalMesh (shape, deflection, true);
cout << "done" << endl;
}
void OCCGeometry :: CalcBoundingBox ()
{
Bnd_Box bb;
BRepBndLib::Add (shape, bb);
double x1,y1,z1,x2,y2,z2;
bb.Get (x1,y1,z1,x2,y2,z2);
Point<3> p1 = Point<3> (x1,y1,z1);
Point<3> p2 = Point<3> (x2,y2,z2);
(*testout) << "Bounding Box = [" << p1 << " - " << p2 << "]" << endl;
boundingbox = Box<3> (p1,p2);
SetCenter();
}
void OCCGeometry :: Project (int surfi, Point<3> & p) const
{
static int cnt = 0;
if (++cnt % 1000 == 0) cout << "Project cnt = " << cnt << endl;
gp_Pnt pnt(p(0), p(1), p(2));
double u,v;
Handle( Geom_Surface ) thesurf = BRep_Tool::Surface(TopoDS::Face(fmap(surfi)));
Handle( ShapeAnalysis_Surface ) su = new ShapeAnalysis_Surface( thesurf );
gp_Pnt2d suval = su->ValueOfUV ( pnt, BRep_Tool::Tolerance( TopoDS::Face(fmap(surfi)) ) );
suval.Coord( u, v);
pnt = thesurf->Value( u, v );
p = Point<3> (pnt.X(), pnt.Y(), pnt.Z());
}
bool OCCGeometry :: FastProject (int surfi, Point<3> & ap, double& u, double& v) const
{
gp_Pnt p(ap(0), ap(1), ap(2));
Handle(Geom_Surface) surface = BRep_Tool::Surface(TopoDS::Face(fmap(surfi)));
gp_Pnt x = surface->Value (u,v);
if (p.SquareDistance(x) <= sqr(PROJECTION_TOLERANCE)) return true;
gp_Vec du, dv;
surface->D1(u,v,x,du,dv);
int count = 0;
gp_Pnt xold;
gp_Vec n;
double det, lambda, mu;
do {
count++;
n = du^dv;
det = Det3 (n.X(), du.X(), dv.X(),
n.Y(), du.Y(), dv.Y(),
n.Z(), du.Z(), dv.Z());
if (det < 1e-15) return false;
lambda = Det3 (n.X(), p.X()-x.X(), dv.X(),
n.Y(), p.Y()-x.Y(), dv.Y(),
n.Z(), p.Z()-x.Z(), dv.Z())/det;
mu = Det3 (n.X(), du.X(), p.X()-x.X(),
n.Y(), du.Y(), p.Y()-x.Y(),
n.Z(), du.Z(), p.Z()-x.Z())/det;
u += lambda;
v += mu;
xold = x;
surface->D1(u,v,x,du,dv);
} while (xold.SquareDistance(x) > sqr(PROJECTION_TOLERANCE) && count < 50);
// (*testout) << "FastProject count: " << count << endl;
if (count == 50) return false;
ap = Point<3> (x.X(), x.Y(), x.Z());
return true;
}
fix issues with OpenCascade
2016-02-15 12:55:49 +05:00
// void OCCGeometry :: WriteOCC_STL(char * filename)
// {
// cout << "writing stl..."; cout.flush();
// StlAPI_Writer writer;
// writer.RelativeMode() = Standard_False;
//
// writer.SetDeflection(0.02);
// writer.Write(shape,filename);
//
// cout << "done" << endl;
// }
* Converted the minimum edge length used for subdividing geometry edges during the meshing phase into a user defined parameter accessible from the GUI
2014-01-26 03:17:16 +06:00
// Philippose - 23/02/2009
/* Special IGES File load function including the ability
to extract individual surface colours via the extended
OpenCascade XDE and XCAF Feature set.
*/
OCCGeometry *LoadOCC_IGES(const char *filename)
{
OCCGeometry *occgeo;
occgeo = new OCCGeometry;
// Initiate a dummy XCAF Application to handle the IGES XCAF Document
static Handle_XCAFApp_Application dummy_app = XCAFApp_Application::GetApplication();
// Create an XCAF Document to contain the IGES file itself
Handle_TDocStd_Document iges_doc;
// Check if a IGES File is already open under this handle, if so, close it to prevent
// Segmentation Faults when trying to create a new document
if(dummy_app->NbDocuments() > 0)
{
dummy_app->GetDocument(1,iges_doc);
dummy_app->Close(iges_doc);
}
dummy_app->NewDocument ("IGES-XCAF",iges_doc);
IGESCAFControl_Reader reader;
Standard_Integer stat = reader.ReadFile((char*)filename);
if(stat != IFSelect_RetDone)
{
delete occgeo;
return NULL;
}
// Enable transfer of colours
reader.SetColorMode(Standard_True);
reader.Transfer(iges_doc);
// Read in the shape(s) and the colours present in the IGES File
Handle_XCAFDoc_ShapeTool iges_shape_contents = XCAFDoc_DocumentTool::ShapeTool(iges_doc->Main());
Handle_XCAFDoc_ColorTool iges_colour_contents = XCAFDoc_DocumentTool::ColorTool(iges_doc->Main());
TDF_LabelSequence iges_shapes;
iges_shape_contents->GetShapes(iges_shapes);
// List out the available colours in the IGES File as Colour Names
TDF_LabelSequence all_colours;
iges_colour_contents->GetColors(all_colours);
PrintMessage(1,"Number of colours in IGES File: ",all_colours.Length());
for(int i = 1; i <= all_colours.Length(); i++)
{
Quantity_Color col;
stringstream col_rgb;
iges_colour_contents->GetColor(all_colours.Value(i),col);
col_rgb << " : (" << col.Red() << "," << col.Green() << "," << col.Blue() << ")";
PrintMessage(1, "Colour [", i, "] = ",col.StringName(col.Name()),col_rgb.str());
}
// For the IGES Reader, all the shapes can be exported as one compund shape
// using the "OneShape" member
occgeo->shape = reader.OneShape();
occgeo->face_colours = iges_colour_contents;
occgeo->changed = 1;
occgeo->BuildFMap();
occgeo->CalcBoundingBox();
PrintContents (occgeo);
return occgeo;
}
// Philippose - 29/01/2009
/* Special STEP File load function including the ability
to extract individual surface colours via the extended
OpenCascade XDE and XCAF Feature set.
*/
OCCGeometry * LoadOCC_STEP (const char * filename)
{
OCCGeometry * occgeo;
occgeo = new OCCGeometry;
// Initiate a dummy XCAF Application to handle the STEP XCAF Document
static Handle_XCAFApp_Application dummy_app = XCAFApp_Application::GetApplication();
// Create an XCAF Document to contain the STEP file itself
Handle_TDocStd_Document step_doc;
// Check if a STEP File is already open under this handle, if so, close it to prevent
// Segmentation Faults when trying to create a new document
if(dummy_app->NbDocuments() > 0)
{
dummy_app->GetDocument(1,step_doc);
dummy_app->Close(step_doc);
}
dummy_app->NewDocument ("STEP-XCAF",step_doc);
STEPCAFControl_Reader reader;
// Enable transfer of colours
reader.SetColorMode(Standard_True);
Standard_Integer stat = reader.ReadFile((char*)filename);
if(stat != IFSelect_RetDone)
{
delete occgeo;
return NULL;
}
reader.Transfer(step_doc);
// Read in the shape(s) and the colours present in the STEP File
Handle_XCAFDoc_ShapeTool step_shape_contents = XCAFDoc_DocumentTool::ShapeTool(step_doc->Main());
Handle_XCAFDoc_ColorTool step_colour_contents = XCAFDoc_DocumentTool::ColorTool(step_doc->Main());
TDF_LabelSequence step_shapes;
step_shape_contents->GetShapes(step_shapes);
// List out the available colours in the STEP File as Colour Names
TDF_LabelSequence all_colours;
step_colour_contents->GetColors(all_colours);
PrintMessage(1,"Number of colours in STEP File: ",all_colours.Length());
for(int i = 1; i <= all_colours.Length(); i++)
{
Quantity_Color col;
stringstream col_rgb;
step_colour_contents->GetColor(all_colours.Value(i),col);
col_rgb << " : (" << col.Red() << "," << col.Green() << "," << col.Blue() << ")";
PrintMessage(1, "Colour [", i, "] = ",col.StringName(col.Name()),col_rgb.str());
}
// For the STEP File Reader in OCC, the 1st Shape contains the entire
// compound geometry as one shape
occgeo->shape = step_shape_contents->GetShape(step_shapes.Value(1));
occgeo->face_colours = step_colour_contents;
occgeo->changed = 1;
occgeo->BuildFMap();
occgeo->CalcBoundingBox();
PrintContents (occgeo);
return occgeo;
}
OCCGeometry *LoadOCC_BREP (const char *filename)
{
OCCGeometry * occgeo;
occgeo = new OCCGeometry;
BRep_Builder aBuilder;
Standard_Boolean result = BRepTools::Read(occgeo->shape, const_cast<char*> (filename),aBuilder);
if(!result)
{
delete occgeo;
return NULL;
}
// Philippose - 23/02/2009
// Fixed a bug in the OpenCascade XDE Colour handling when
// opening BREP Files, since BREP Files have no colour data.
// Hence, the face_colours Handle needs to be created as a NULL handle.
occgeo->face_colours = Handle_XCAFDoc_ColorTool();
occgeo->face_colours.Nullify();
occgeo->changed = 1;
occgeo->BuildFMap();
occgeo->CalcBoundingBox();
PrintContents (occgeo);
return occgeo;
}
void OCCGeometry :: Save (string sfilename) const
{
const char * filename = sfilename.c_str();
if (strlen(filename) < 4)
throw NgException ("illegal filename");
if (strcmp (&filename[strlen(filename)-3], "igs") == 0)
{
IGESControl_Writer writer("millimeters", 1);
writer.AddShape (shape);
writer.Write (filename);
}
else if (strcmp (&filename[strlen(filename)-3], "stp") == 0)
{
STEPControl_Writer writer;
writer.Transfer (shape, STEPControl_AsIs);
writer.Write (filename);
}
else if (strcmp (&filename[strlen(filename)-3], "stl") == 0)
{
StlAPI_Writer writer;
writer.ASCIIMode() = Standard_True;
writer.Write (shape, filename);
}
else if (strcmp (&filename[strlen(filename)-4], "stlb") == 0)
{
StlAPI_Writer writer;
writer.ASCIIMode() = Standard_False;
writer.Write (shape, filename);
}
}
const char * shapesname[] =
{" ", "CompSolids", "Solids", "Shells",
"Faces", "Wires", "Edges", "Vertices"};
const char * shapename[] =
{" ", "CompSolid", "Solid", "Shell",
"Face", "Wire", "Edge", "Vertex"};
const char * orientationstring[] =
{"+", "-"};
void OCCGeometry :: RecursiveTopologyTree (const TopoDS_Shape & sh,
stringstream & str,
TopAbs_ShapeEnum l,
bool isfree,
const char * lname)
{
if (l > TopAbs_VERTEX) return;
TopExp_Explorer e;
int count = 0;
int count2 = 0;
if (isfree)
e.Init(sh, l, TopAbs_ShapeEnum(l-1));
else
e.Init(sh, l);
for (; e.More(); e.Next())
{
count++;
stringstream lname2;
lname2 << lname << "/" << shapename[l] << count;
str << lname2.str() << " ";
switch (e.Current().ShapeType())
{
case TopAbs_SOLID:
count2 = somap.FindIndex(TopoDS::Solid(e.Current())); break;
case TopAbs_SHELL:
count2 = shmap.FindIndex(TopoDS::Shell(e.Current())); break;
case TopAbs_FACE:
count2 = fmap.FindIndex(TopoDS::Face(e.Current())); break;
case TopAbs_WIRE:
count2 = wmap.FindIndex(TopoDS::Wire(e.Current())); break;
case TopAbs_EDGE:
count2 = emap.FindIndex(TopoDS::Edge(e.Current())); break;
case TopAbs_VERTEX:
count2 = vmap.FindIndex(TopoDS::Vertex(e.Current())); break;
default:
cout << "RecursiveTopologyTree: Case " << e.Current().ShapeType() << " not handeled" << endl;
}
int nrsubshapes = 0;
if (l <= TopAbs_WIRE)
{
TopExp_Explorer e2;
for (e2.Init (e.Current(), TopAbs_ShapeEnum (l+1));
e2.More(); e2.Next())
nrsubshapes++;
}
str << "{" << shapename[l] << " " << count2;
if (l <= TopAbs_EDGE)
{
str << " (" << orientationstring[e.Current().Orientation()];
if (nrsubshapes != 0) str << ", " << nrsubshapes;
str << ") } ";
}
else
str << " } ";
RecursiveTopologyTree (e.Current(), str, TopAbs_ShapeEnum (l+1),
false, (char*)lname2.str().c_str());
}
}
void OCCGeometry :: GetTopologyTree (stringstream & str)
{
cout << "Building topology tree ... " << flush;
RecursiveTopologyTree (shape, str, TopAbs_COMPSOLID, false, "CompSolids");
RecursiveTopologyTree (shape, str, TopAbs_SOLID, true, "FreeSolids");
RecursiveTopologyTree (shape, str, TopAbs_SHELL, true, "FreeShells");
RecursiveTopologyTree (shape, str, TopAbs_FACE, true, "FreeFaces");
RecursiveTopologyTree (shape, str, TopAbs_WIRE, true, "FreeWires");
RecursiveTopologyTree (shape, str, TopAbs_EDGE, true, "FreeEdges");
RecursiveTopologyTree (shape, str, TopAbs_VERTEX, true, "FreeVertices");
str << flush;
// cout << "done" << endl;
}
void OCCGeometry :: CheckIrregularEntities(stringstream & str)
{
ShapeAnalysis_CheckSmallFace csm;
csm.SetTolerance (1e-6);
TopTools_DataMapOfShapeListOfShape mapEdges;
ShapeAnalysis_DataMapOfShapeListOfReal mapParam;
TopoDS_Compound theAllVert;
int spotfaces = 0;
int stripsupportfaces = 0;
int singlestripfaces = 0;
int stripfaces = 0;
int facessplitbyvertices = 0;
int stretchedpinfaces = 0;
int smoothpinfaces = 0;
int twistedfaces = 0;
// int edgessamebutnotidentified = 0;
cout << "checking faces ... " << flush;
int i;
for (i = 1; i <= fmap.Extent(); i++)
{
TopoDS_Face face = TopoDS::Face (fmap(i));
TopoDS_Edge e1, e2;
if (csm.CheckSpotFace (face))
{
if (!spotfaces++)
str << "SpotFace {Spot face} ";
(*testout) << "Face " << i << " is a spot face" << endl;
str << "SpotFace/Face" << i << " ";
str << "{Face " << i << " } ";
}
if (csm.IsStripSupport (face))
{
if (!stripsupportfaces++)
str << "StripSupportFace {Strip support face} ";
(*testout) << "Face " << i << " has strip support" << endl;
str << "StripSupportFace/Face" << i << " ";
str << "{Face " << i << " } ";
}
if (csm.CheckSingleStrip(face, e1, e2))
{
if (!singlestripfaces++)
str << "SingleStripFace {Single strip face} ";
(*testout) << "Face " << i << " is a single strip (edge " << emap.FindIndex(e1)
<< " and edge " << emap.FindIndex(e2) << " are identical)" << endl;
str << "SingleStripFace/Face" << i << " ";
str << "{Face " << i << " (edge " << emap.FindIndex(e1)
<< " and edge " << emap.FindIndex(e2) << " are identical)} ";
}
if (csm.CheckStripFace(face, e1, e2))
{
if (!stripfaces++)
str << "StripFace {Strip face} ";
(*testout) << "Face " << i << " is a strip (edge " << emap.FindIndex(e1)
<< " and edge " << emap.FindIndex(e2)
<< " are identical)" << endl;
str << "StripFace/Face" << i << " ";
str << "{Face " << i << " (edge " << emap.FindIndex(e1)
<< " and edge " << emap.FindIndex(e2) << " are identical)} ";
}
if (int count = csm.CheckSplittingVertices(face, mapEdges, mapParam, theAllVert))
{
if (!facessplitbyvertices++)
str << "FaceSplitByVertices {Face split by vertices} ";
(*testout) << "Face " << i << " is split by " << count
<< " vertex/vertices " << endl;
str << "FaceSplitByVertices/Face" << i << " ";
str << "{Face " << i << " (split by " << count << "vertex/vertices)} ";
}
int whatrow, sens;
if (int type = csm.CheckPin (face, whatrow, sens))
{
if (type == 1)
{
if (!smoothpinfaces++)
str << "SmoothPinFace {Smooth pin face} ";
(*testout) << "Face " << i << " is a smooth pin" << endl;
str << "SmoothPinFace/Face" << i << " ";
str << "{Face " << i << " } ";
}
else
{
if (!stretchedpinfaces++)
str << "StretchedPinFace {Stretched pin face} ";
(*testout) << "Face " << i << " is a streched pin" << endl;
str << "StretchedPinFace/Face" << i << " ";
str << "{Face " << i << " } ";
}
}
double paramu, paramv;
if (csm.CheckTwisted (face, paramu, paramv))
{
if (!twistedfaces++)
str << "TwistedFace {Twisted face} ";
(*testout) << "Face " << i << " is twisted" << endl;
str << "TwistedFace/Face" << i << " ";
str << "{Face " << i << " } ";
}
}
cout << "done" << endl;
cout << "checking edges ... " << flush;
// double dmax;
// int cnt = 0;
Array <double> edgeLengths;
Array <int> order;
edgeLengths.SetSize (emap.Extent());
order.SetSize (emap.Extent());
for (i = 1; i <= emap.Extent(); i++)
{
TopoDS_Edge edge1 = TopoDS::Edge (emap(i));
GProp_GProps system;
BRepGProp::LinearProperties(edge1, system);
edgeLengths[i-1] = system.Mass();
}
Sort (edgeLengths, order);
str << "ShortestEdges {Shortest edges} ";
for (i = 1; i <= min(20, emap.Extent()); i++)
{
str << "ShortestEdges/Edge" << i;
str << " {Edge " << order[i-1] << " (L=" << edgeLengths[order[i-1]-1] << ")} ";
}
str << flush;
cout << "done" << endl;
}
void OCCGeometry :: GetUnmeshedFaceInfo (stringstream & str)
{
for (int i = 1; i <= fmap.Extent(); i++)
{
if (facemeshstatus[i-1] == -1)
str << "Face" << i << " {Face " << i << " } ";
}
str << flush;
}
void OCCGeometry :: GetNotDrawableFaces (stringstream & str)
{
for (int i = 1; i <= fmap.Extent(); i++)
{
if (!fvispar[i-1].IsDrawable())
str << "Face" << i << " {Face " << i << " } ";
}
str << flush;
}
bool OCCGeometry :: ErrorInSurfaceMeshing ()
{
for (int i = 1; i <= fmap.Extent(); i++)
if (facemeshstatus[i-1] == -1)
return true;
return false;
}
occ meshing with mesh-sharedptr
2014-09-30 23:30:36 +06:00
int OCCGeometry :: GenerateMesh (shared_ptr<Mesh> & mesh, MeshingParameters & mparam,
* Converted the minimum edge length used for subdividing geometry edges during the meshing phase into a user defined parameter accessible from the GUI
2014-01-26 03:17:16 +06:00
int perfstepsstart, int perfstepsend)
{
return OCCGenerateMesh (*this, mesh, mparam, perfstepsstart, perfstepsend);
}
const Refinement & OCCGeometry :: GetRefinement () const
{
return * new OCCRefinementSurfaces (*this);
}
OCCParameters :: OCCParameters()
{
resthcloseedgefac = 1;
resthcloseedgeenable = 1;
resthminedgelen = 0.001;
resthminedgelenenable = 1;
}
void OCCParameters :: Print(ostream & ost) const
{
ost << "OCC Parameters:" << endl
<< "close edges: " << resthcloseedgeenable
<< ", fac = " << resthcloseedgefac << endl
<< "minimum edge length: " << resthminedgelenenable
<< ", min len = " << resthminedgelen << endl;
}
OCCParameters occparam;
}
#endif
Reference in New Issue Copy Permalink