From 53152e6dd9cfd9248bccce27f0911de8d1480fe7 Mon Sep 17 00:00:00 2001
From: gka <gka@opencascade.com>
Date: Wed, 17 Aug 2022 16:58:24 +0300
Subject: [PATCH] 0033101: Data Exchange - STEP reader makes unexpected
enormous scaling of some parts
Modification to apply units scale factor for faces based on the triangulation
---
src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx b/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
index 998c8e1687..209eb69338 100644
--- a/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
@@ -46,6 +46,7 @@
#include <ShapeAlgo.hxx>
#include <ShapeAlgo_AlgoContainer.hxx>
#include <StdFail_NotDone.hxx>
+#include <StepData_GlobalFactors.hxx>
#include <StepGeom_BSplineSurface.hxx>
#include <StepGeom_BSplineSurfaceForm.hxx>
#include <StepGeom_OffsetSurface.hxx>
@@ -488,9 +489,11 @@ StepToTopoDS_TranslateFace::createMesh(const Handle(StepVisual_TriangulatedFace)
const Standard_Boolean aHasNormals = (theTF->NbNormals() > 0);
Handle(Poly_Triangulation) aMesh = new Poly_Triangulation(theTF->NbPnindex(), theTF->NbTriangles(), aHasUVNodes, aHasNormals);
+ const Standard_Real aLF = StepData_GlobalFactors::Intance().LengthFactor();
for (Standard_Integer j = 1; j <= theTF->NbPnindex(); ++j)
{
- aMesh->SetNode(j, aNodes->Value(theTF->PnindexValue(j)));
+ const gp_XYZ& aPoint = aNodes->Value(theTF->PnindexValue(j));
+ aMesh->SetNode(j, aPoint * aLF);
}
for (Standard_Integer k = 1; k <= theTF->NbTriangles(); ++k)
@@ -573,9 +576,11 @@ StepToTopoDS_TranslateFace::createMesh(const Handle(StepVisual_ComplexTriangulat
Handle(Poly_Triangulation) aMesh = new Poly_Triangulation(theTF->NbPnindex(),
aNbTriaStrips + aNbTriaFans, aHasUVNodes, aHasNormals);
+ const Standard_Real aLF = StepData_GlobalFactors::Intance().LengthFactor();
for (Standard_Integer j = 1; j <= theTF->NbPnindex(); ++j)
{
- aMesh->SetNode(j, aNodes->Value(theTF->PnindexValue(j)));
+ const gp_XYZ& aPoint = aNodes->Value(theTF->PnindexValue(j));
+ aMesh->SetNode(j, aLF * aPoint);
}
Standard_Integer k = 1;