Path.Area: handle empty wires during sorting

2017-11-19 03:07:36 +08:00
parent 6ad0a1825c
commit 54219f151c
1 changed files with 7 additions and 2 deletions
--- a/src/Mod/Path/App/Area.cpp
+++ b/src/Mod/Path/App/Area.cpp
@@ -2535,13 +2535,18 @@ struct ShapeInfo{
    std::list<TopoDS_Shape> sortWires(const gp_Pnt &pstart, gp_Pnt &pend,
            double min_dist, double max_dist, gp_Pnt *pentry) {

+        std::list<TopoDS_Shape> wires;
+
        if(myWires.empty() ||
-           pstart.SquareDistance(myStartPt)>Precision::SquareConfusion())
+           pstart.SquareDistance(myStartPt)>Precision::SquareConfusion()) 
+        {
            nearest(pstart);
+            if(myWires.empty())
+                return wires;
+        }

        if(pentry) *pentry = myBestPt;

-        std::list<TopoDS_Shape> wires;
        if(min_dist < 0.01)
            min_dist = 0.01;
        while(true) {