From 3f90ce401b5018e9258352a93dd3440a83925cbd Mon Sep 17 00:00:00 2001
From: mpv <mikhail.ponikarov@opencascade.com>
Date: Tue, 23 Sep 2014 17:32:42 +0400
Subject: [PATCH] Length must not be zero or negative

---
 src/SketchPlugin/plugin-Sketch.xml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/SketchPlugin/plugin-Sketch.xml b/src/SketchPlugin/plugin-Sketch.xml
index 04a99179e..16c1b106d 100644
--- a/src/SketchPlugin/plugin-Sketch.xml
+++ b/src/SketchPlugin/plugin-Sketch.xml
@@ -50,8 +50,10 @@
           <validator id="SketchPlugin_ResultLine"/>
         </feature_selector>
         <point_selector id="ConstraintFlyoutValuePnt" internal="1"/>
-        <doublevalue_editor label="Value" tooltip="Constraint value" id="ConstraintValue" default="computed"/>
-        <validator id="PartSet_LengthValidator"/> 
+        <doublevalue_editor label="Value" tooltip="Constraint value" id="ConstraintValue" default="computed">
+          <validator id="GeomValidators_Positive"/>
+        </doublevalue_editor>
+        <validator id="PartSet_LengthValidator"/>
       </feature>
       
       <feature id="SketchConstraintRadius" title="Radius" tooltip="Create constraint for the given radius of a circle or an arc" icon=":icons/radius_constr.png">
-- 
2.39.2