0026112: Exception is raised during perform of General Fuse operation

class BOPAlgo_WireSplitter
method
Standard_Boolean RefineAngle2D(const TopoDS_Vertex& aV,
                               const TopoDS_Edge& aE,
                               const TopoDS_Face& myFace,
                               const Standard_Real aA1,
                               const Standard_Real aA2,
                               Standard_Real& aA)

Protection from null vector.

Test case for issue CR26112

diff --git a/src/BOPAlgo/BOPAlgo_WireSplitter_1.cxx b/src/BOPAlgo/BOPAlgo_WireSplitter_1.cxx
index 0afa8ad9a40c3f6009f8dbea8976e57d3e0bdc83..34408661d91f36c18c207ac9b60fa22bd747c186 100644 (file)
--- a/src/BOPAlgo/BOPAlgo_WireSplitter_1.cxx
+++ b/src/BOPAlgo/BOPAlgo_WireSplitter_1.cxx
@@ -1061,6 +1061,9 @@ Standard_Boolean RefineAngle2D(const TopoDS_Vertex& aV,
     }
     //
     dT = aTOp - aT1max;
+    if (Abs(dT) < aTolInt) {
+      continue;
+    }
     //
     aT=aT1max + aCf*dT;
     aC2D->D0(aT, aP);

diff --git a/tests/bugs/modalg_6/bug26112 b/tests/bugs/modalg_6/bug26112
new file mode 100755 (executable)
index 0000000..827db18
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26112
@@ -0,0 +1,38 @@
+puts "============"
+puts "OCC26112"
+puts "============"
+puts ""
+###############################
+## Exception is raised during perform of General Fuse operation
+###############################
+
+restore [locate_data_file bug26112_c.brep ] c
+
+explode c
+
+bclearobjects
+bcleartools
+baddobjects c_1
+baddtools c_2
+
+bfillds
+bbuild result
+
+set square 122.7
+
+set nbshapes_expected "
+Number of shapes in shape
+ VERTEX    : 7
+ EDGE      : 10
+ WIRE      : 5
+ FACE      : 4
+ SHELL     : 0
+ SOLID     : 0
+ COMPSOLID : 0
+ COMPOUND  : 1
+ SHAPE     : 27
+"
+
+checknbshapes result -ref ${nbshapes_expected} -t -m "Result obtained by General Fuse operator"
+
+set 3dviewer 1