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0028089: Mesh - New algorithm for triangulation of 2d polygons

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Added custom meshing core algorithm to generate base mesh using Delabella library,
which can be enabled via IMeshTools_Parameters::MeshAlgo option or CSF_MeshAlgo environment variable.

Do not fill cirles filter upon explicit initialization.
Call base postProcessMesh functionality after initialization of circles in BRepMesh_CustomDelaunayBaseMeshAlgo.

Added Vsprintf() wrapper for vsprintf() preserving C locale.
This commit is contained in:
oan
2019-07-10 13:04:25 +03:00
committed by bugmaster
parent 689dc3b1c9
commit f2006a6f19
30 changed files with 1923 additions and 68 deletions
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74
src/MeshTest/MeshTest.cxx
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@@ -43,6 +43,11 @@
#include <TopExp_Explorer.hxx>
#include <TopTools_MapIteratorOfMapOfShape.hxx>
#include <BRepMesh_Context.hxx>
#include <BRepMesh_FaceDiscret.hxx>
#include <BRepMesh_MeshAlgoFactory.hxx>
#include <BRepMesh_DelabellaMeshAlgoFactory.hxx>
//epa Memory leaks test
//OAN: for triepoints
#ifdef _WIN32
@@ -94,7 +99,8 @@ options:\n\
-adjust_min enables local adjustment of min size depending on edge size (switched off by default)\n\
-force_face_def disables usage of shape tolerances for computing face deflection (switched off by default)\n\
-decrease enforces the meshing of the shape even if current mesh satisfies the new criteria\
(switched off by default).\n";
(switched off by default).\n\
-algo {watson|delabella} changes core triangulation algorithm to one with specified id (watson is used by default)\n";
return 0;
}
@@ -109,6 +115,7 @@ options:\n\
aMeshParams.Deflection = aMeshParams.DeflectionInterior =
Max(Draw::Atof(argv[2]), Precision::Confusion());
Handle (IMeshTools_Context) aContext = new BRepMesh_Context;
if (nbarg > 3)
{
Standard_Integer i = 3;
@@ -135,23 +142,54 @@ options:\n\
aMeshParams.AllowQualityDecrease = Standard_True;
else if (i < nbarg)
{
Standard_Real aVal = Draw::Atof(argv[i++]);
if (aOpt == "-a")
if (aOpt == "-algo")
{
aMeshParams.Angle = aVal * M_PI / 180.;
}
else if (aOpt == "-ai")
{
aMeshParams.AngleInterior = aVal * M_PI / 180.;
}
else if (aOpt == "-min")
aMeshParams.MinSize = aVal;
else if (aOpt == "-di")
{
aMeshParams.DeflectionInterior = aVal;
TCollection_AsciiString anAlgoStr (argv[i++]);
anAlgoStr.LowerCase();
if (anAlgoStr == "watson"
|| anAlgoStr == "0")
{
aMeshParams.MeshAlgo = IMeshTools_MeshAlgoType_Watson;
aContext->SetFaceDiscret (new BRepMesh_FaceDiscret (new BRepMesh_MeshAlgoFactory));
}
else if (anAlgoStr == "delabella"
|| anAlgoStr == "1")
{
aMeshParams.MeshAlgo = IMeshTools_MeshAlgoType_Delabella;
aContext->SetFaceDiscret (new BRepMesh_FaceDiscret (new BRepMesh_DelabellaMeshAlgoFactory));
}
else if (anAlgoStr == "-1"
|| anAlgoStr == "default")
{
// already handled by BRepMesh_Context constructor
//aMeshParams.MeshAlgo = IMeshTools_MeshAlgoType_DEFAULT;
}
else
{
di << "Syntax error at " << anAlgoStr;
return 1;
}
}
else
--i;
{
Standard_Real aVal = Draw::Atof(argv[i++]);
if (aOpt == "-a")
{
aMeshParams.Angle = aVal * M_PI / 180.;
}
else if (aOpt == "-ai")
{
aMeshParams.AngleInterior = aVal * M_PI / 180.;
}
else if (aOpt == "-min")
aMeshParams.MinSize = aVal;
else if (aOpt == "-di")
{
aMeshParams.DeflectionInterior = aVal;
}
else
--i;
}
}
}
}
@@ -160,7 +198,11 @@ options:\n\
<< (aMeshParams.InParallel ? "ON" : "OFF") << "\n";
Handle(Draw_ProgressIndicator) aProgress = new Draw_ProgressIndicator(di, 1);
BRepMesh_IncrementalMesh aMesher (aShape, aMeshParams, aProgress->Start());
BRepMesh_IncrementalMesh aMesher;
aMesher.SetShape (aShape);
aMesher.ChangeParameters() = aMeshParams;
aMesher.Perform (aContext, aProgress->Start());
di << "Meshing statuses: ";
const Standard_Integer aStatus = aMesher.GetStatusFlags();