Small usability fix for Knife Subdivide

* If there are no selected edges when the function's
invoked, it now gives an error message and returns.

If anyone can think of a better message, please suggest it
(or just commit it ;)

1 files changed, 6 insertions, 1 deletions

diff --git a/source/blender/src/editmesh.c b/source/blender/src/editmesh.c
index 0d0cecfa717..efd890724f2 100644
--- a/source/blender/src/editmesh.c
+++ b/source/blender/src/editmesh.c
@@ -7416,7 +7416,12 @@ void KnifeSubdivide(char mode){
 	Window *win;	
 	
 	if (G.obedit==0) return;
-	
+
+	if (editmesh_nvertices_selected() < 2) {
+		error("No edges are selected to operate on");
+		return;
+	}
+
 	if (mode==KNIFE_PROMPT) {
 		short val= pupmenu("Cut Type %t|Exact Line%x1|Midpoints%x2");
 		if(val<1) return;