diff --git a/src/src/Rendering/Core/DraggableActor.cpp b/src/src/Rendering/Core/DraggableActor.cpp
index cc6e7b6..b17769a 100644
--- a/src/src/Rendering/Core/DraggableActor.cpp
+++ b/src/src/Rendering/Core/DraggableActor.cpp
@@ -78,9 +78,9 @@ void DraggableActor::MapScreenPointToWorld(double x, double y, vtkRenderer *rend
     renderer->DisplayToWorld();
     double *p = renderer->GetWorldPoint();
     if (MapMode == MapToSlice){
-        result[0] = dp[0] > 0.0 ? fp[0] : p[0];
-        result[1] = dp[1] > 0.0 ? fp[1] : p[1];
-        result[2] = dp[2] > 0.0 ? fp[2] : p[2];
+        result[0] = abs(dp[0]) > 0.9 ? fp[0] : p[0];
+        result[1] = abs(dp[1]) > 0.9 ? fp[1] : p[1];
+        result[2] = abs(dp[2]) > 0.9 ? fp[2] : p[2];
     }
     if(MapMode == MapToWorld){
         result[0] = p[0];