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More correction in the algorithm of merging edges, applying more strict requirement to fluctuation of built curve from initial vertices.

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msv 2016-08-05 17:10:57 +03:00 committed by ema
parent fbc3f28c6e
commit 07af2e5c9b
1 changed files with 29 additions and 16 deletions
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45
src/ShapeUpgrade/ShapeUpgrade_CombineToCylinder.cxx
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@ -552,17 +552,26 @@ static TopoDS_Face createCylFaceFromArea(const TopoDS_Compound& theFaces,
//function : updateVertexOnCirc
//purpose :
//=======================================================================
static void updateVertexOnCirc(const TopoDS_Vertex& theV,
const gp_Circ& theCirc,
Standard_Real& thePar)
static Standard_Boolean updateVertexOnCirc(const TopoDS_Vertex& theV,
const gp_Circ& theCirc,
Standard_Real theMaxDist,
Standard_Real& thePar)
{
Standard_Real aTol = BRep_Tool::Tolerance(theV);
gp_Pnt aP = BRep_Tool::Pnt(theV);
thePar = ElCLib::Parameter(theCirc, aP);
gp_Pnt aProj = ElCLib::Value(thePar, theCirc);
Standard_Real aDist = aProj.SquareDistance(aP);
Standard_Boolean isOK = Standard_False;
if (aDist > aTol*aTol)
BRep_Builder().UpdateVertex(theV, sqrt(aDist)*1.001);
{
if (aDist < theMaxDist*theMaxDist)
{
BRep_Builder().UpdateVertex(theV, sqrt(aDist)*1.001);
isOK = Standard_True;
}
}
return isOK;
}
//=======================================================================
@ -670,23 +679,27 @@ static TopoDS_Edge createCurveEdge(const TopTools_ListOfShape& theChain,
aCircDir.Reverse();
gp_Circ aCirc(gp_Ax2(aCenter, aCircDir, aXDir), aRadius);
Handle(Geom_Circle) aCurve = new Geom_Circle(aCirc);
// update vertices tolerance
// update vertices tolerance, but not more than on a value aTol,
// otherwise skip building a circle, and build bspline.
Standard_Real aPar;
updateVertexOnCirc(aVF, aCirc, aPar);
if (isClosed)
if (updateVertexOnCirc(aVF, aCirc, aTol, aPar))
{
// full circle
aNewEdge = BRepBuilderAPI_MakeEdge(aCurve, aVF, aVL, 0, M_PI*2.);
}
else
{
// an arc
updateVertexOnCirc(aVL, aCirc, aPar);
aNewEdge = BRepBuilderAPI_MakeEdge(aCurve, aVF, aVL, 0., aPar);
if (isClosed)
{
// full circle
aNewEdge = BRepBuilderAPI_MakeEdge(aCurve, aVF, aVL, 0, M_PI*2.);
}
else
{
// an arc
if (updateVertexOnCirc(aVL, aCirc, aTol, aPar))
aNewEdge = BRepBuilderAPI_MakeEdge(aCurve, aVF, aVL, 0., aPar);
}
}
}
else
if (aNewEdge.IsNull())
{
// not a circle, try building bspline
gp_Pnt aPnts1[3];
const gp_Pnt* pPnts = &aPnts(1);
Standard_Integer np = aPnts.Length();