From 4a680d12b72b00d28e6cb66f266dcbb1dfd9800c Mon Sep 17 00:00:00 2001
From: logari81 <logari81@gmail.com>
Date: Sat, 8 Dec 2012 23:48:35 +0100
Subject: [PATCH] Sketcher: Fix deletion of coincident constraints on the root
 point

---
 src/Mod/Sketcher/App/SketchObject.cpp       | 6 +++++-
 src/Mod/Sketcher/Gui/ViewProviderSketch.cpp | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 2d208284cc..78a76007ba 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -410,7 +410,11 @@ int SketchObject::delConstraintOnPoint(int VertexId, bool onlyCoincident)
 {
     int GeoId;
     PointPos PosId;
-    getGeoVertexIndex(VertexId, GeoId, PosId);
+    if (VertexId == -1) { // RootPoint
+        GeoId = -1;
+        PosId = start;
+    } else
+        getGeoVertexIndex(VertexId, GeoId, PosId);
     return delConstraintOnPoint(GeoId, PosId, onlyCoincident);
 }
 
diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index 2beb574b2b..8e625ab763 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -3349,6 +3349,8 @@ bool ViewProviderSketch::onDelete(const std::vector<std::string> &subList)
                     delGeometries.insert(GeoId);
                 else
                     delCoincidents.insert(VtId);
+            } else if (*it == "RootPoint") {
+                delCoincidents.insert(-1);
             } else if (it->size() > 10 && it->substr(0,10) == "Constraint") {
                 int ConstrId = std::atoi(it->substr(10,4000).c_str());
                 delConstraints.insert(ConstrId);