OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-08-04 13:13:25 +03:00
Code Activity

0028599: Replacement of old Boolean operations with new ones in BRepProj_Projection algorithm

Browse Source 
The usage of *BRepAlgo_Section* has been replaced with the usage of *BRepAlgoAPI_Section* in *BRepProj_Projection* algorithm.

The TODO statements have been removed from the failing test case in the "prj" grid as they are working correctly now.

The following changes have been made to improve the performance *BRepAlgoAPI_Section*:
1. Revision of the *IntPolyh_Intersection* class to avoid repeated calculation of the deflection of the same triangulation.
2. Small revision of the Edge/Face intersection algorithm to perform Extrema computation on the whole intersection range of the edge instead of discrete ranges.
3. Implementation of the extrema computation for the Circle and Sphere.
4. Correct computation of the parameter of the point on the Circle.
This commit is contained in:
emv
2017-12-26 14:28:27 +03:00
committed by apn
parent 95f688263d
commit 03cca6f742
50 changed files with 2340 additions and 1978 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/BRepProj/BRepProj_Projection.cxx
View File

@@ -16,7 +16,7 @@
#include <Bnd_Box.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <BRepAlgo_Section.hxx>
#include <BRepAlgoAPI_Section.hxx>
#include <BRepBndLib.hxx>
#include <BRepFill_Generator.hxx>
#include <BRepLib_MakeEdge.hxx>
@@ -125,15 +125,17 @@ void BRepProj_Projection::BuildSection (const TopoDS_Shape& theShape,
if ( aShape.IsNull() )
throw Standard_ConstructionError(__FILE__": target shape has no faces");
// build section computing pcurves on the shape
// BRepAlgoAPI_Section aSectionTool (aShape, theTool, Standard_False);
BRepAlgo_Section aSectionTool (aShape, theTool, Standard_False);
aSectionTool.Approximation (Standard_True);
aSectionTool.ComputePCurveOn1 (Standard_True);
// build section computing p-curves on both shapes to get higher precision
BRepAlgoAPI_Section aSectionTool(aShape, theTool, Standard_False);
aSectionTool.Approximation(Standard_True);
aSectionTool.ComputePCurveOn1(Standard_True);
aSectionTool.ComputePCurveOn2(Standard_True);
// Use Oriented Bounding Boxes inside Booleans to speed up calculation of the section
aSectionTool.SetUseOBB(Standard_True);
aSectionTool.Build();
// check for successful work of the section tool
if (! aSectionTool.IsDone())
if (!aSectionTool.IsDone())
return;
// get edges of the result