From a079b415aee20b834d0061b5e8a80bb5ddf364ba Mon Sep 17 00:00:00 2001
From: Ian Rees <ian.rees@gmail.com>
Date: Sun, 2 Apr 2017 18:52:43 +1200
Subject: [PATCH] Path: Use Deflection param for PathSurface meshes

The MaxLength option is quite slow and doesn't give as well-defined of
control over meshing accuracy as the deflection parameter.
---
 src/Mod/Path/PathScripts/PathSurface.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Mod/Path/PathScripts/PathSurface.py b/src/Mod/Path/PathScripts/PathSurface.py
index 128f33f203..9619c7b657 100644
--- a/src/Mod/Path/PathScripts/PathSurface.py
+++ b/src/Mod/Path/PathScripts/PathSurface.py
@@ -304,7 +304,6 @@ class ObjectSurface:
 
         if mesh.TypeId.startswith('Mesh'):
             mesh = mesh.Mesh
-            bb = mesh.BoundBox
         else:
             # try/except is for Path Jobs created before GeometryTolerance
             try:
@@ -313,8 +312,9 @@ class ObjectSurface:
                 from PathScripts.PathPreferences import PathPreferences
                 deflection = PathPreferences.defaultGeometryTolerance()
 
-            mesh = MeshPart.meshFromShape(mesh.Shape, MaxLength=2)
-            bb = mesh.Shape.BoundBox
+            mesh = MeshPart.meshFromShape(mesh.Shape, Deflection = deflection)
+
+        bb = mesh.BoundBox
 
         s = ocl.STLSurf()
         for f in mesh.Facets: