File 0001-Use-non-deprecated-methods-to-access-OpenCascade-Tri.patch of Package OpenSceneGraph

From 54a2d77d56a7d459315cef6de46c853eefc3def4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <[email protected]>
Date: Tue, 5 Jul 2022 00:23:38 +0200
Subject: [PATCH] Use non-deprecated methods to access OpenCascade
 Triangulation elements

The Triangles() and Nodes() accessors have been deprecated in favor
of the Triangle(index) and Node(index) methods, available since OCC 7.2.0,
i.e. for over 5 years.

The Nodes() method has been removed with OCC 7.6.0, and Triangles() is
also slated for removal (currently). Use the non-deprecated methods,
and also fix the types of the index variables to Standard_Integer.
---
 .../OpenCASCADE/ReaderWriterOpenCASCADE.cpp   | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp b/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp
index 91a142200..1b0198d90 100644
--- a/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp
+++ b/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp
@@ -168,7 +168,6 @@ osg::ref_ptr<osg::Geometry> ReaderWritterOpenCASCADE::OCCTKReader::_createGeomet
 
     // create one osg primitive set
     osg::ref_ptr<osg::DrawElementsUInt> triangleStrip = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
-    unsigned int noOfTriangles = 0;
 
     osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
 
@@ -204,14 +203,14 @@ osg::ref_ptr<osg::Geometry> ReaderWritterOpenCASCADE::OCCTKReader::_createGeomet
             Handle (Poly_Triangulation) triangulation = BRep_Tool::Triangulation(face, location);
             if (!triangulation.IsNull())
             {
-                int noOfNodes = triangulation->NbNodes();
+                Standard_Integer noOfNodes = triangulation->NbNodes();
 
                 // Store vertices. Build vertex array here
-                for(int j = 1; j <= triangulation->NbNodes(); j++)
+                for (Standard_Integer j = 1; j <= triangulation->NbNodes(); j++)
                 {
                     // populate vertex list
                     // Ref: http://www.opencascade.org/org/forum/thread_16694/?forum=3
-                    gp_Pnt pt = (triangulation->Nodes())(j).Transformed(transformation * location.Transformation());
+                    gp_Pnt pt = triangulation->Node(j).Transformed(transformation * location.Transformation());
                     vertexList->push_back(osg::Vec3(pt.X(), pt.Y(), pt.Z()));
 
                     // populate color list
@@ -221,25 +220,21 @@ osg::ref_ptr<osg::Geometry> ReaderWritterOpenCASCADE::OCCTKReader::_createGeomet
                     }
                 }
 
-                /// now we need to get face indices for triangles
-                // get list of triangle first
-                const Poly_Array1OfTriangle& triangles = triangulation->Triangles();
-
                 //No of triangles in this triangulation
-                noOfTriangles = triangulation->NbTriangles();
+                Standard_Integer noOfTriangles = triangulation->NbTriangles();
 
                 Standard_Integer v1, v2, v3;
-                for (unsigned int j = 1; j <= noOfTriangles; j++)
+                for (Standard_Integer j = 1; j <= noOfTriangles; j++)
                 {
                     /// If face direction is reversed then we add verticews in reverse order
                     /// order of vertices is important for normal calculation later
                     if (face.Orientation() == TopAbs_REVERSED)
                     {
-                        triangles(j).Get(v1, v3, v2);
+                        triangulation->Triangle(j).Get(v1, v3, v2);
                     }
                     else
                     {
-                        triangles(j).Get(v1, v2, v3);
+                        triangulation->Triangle(j).Get(v1, v2, v3);
                     }
                     triangleStrip->push_back(index + v1 - 1);
                     triangleStrip->push_back(index + v2 - 1);
-- 
2.36.1