[Bf-extensions-cvs] [69cb19cf] master: MeasureIt: Fix for ensure_lookup_table bug mentioned in T52236

[NBurn]

Commit: 69cb19cf71bf62fddb5e43e1aa31a807e839eb41
Author: NBurn
Date:   Wed Aug 2 06:16:26 2017 -0400
Branches: master
https://developer.blender.org/rBA69cb19cf71bf62fddb5e43e1aa31a807e839eb41

MeasureIt: Fix for ensure_lookup_table bug mentioned in T52236

===================================================================

M	measureit/measureit_geometry.py
M	measureit/measureit_main.py

===================================================================

diff --git a/measureit/measureit_geometry.py b/measureit/measureit_geometry.py
index 14328a9e..87b97a20 100644
--- a/measureit/measureit_geometry.py
+++ b/measureit/measureit_geometry.py
@@ -470,16 +470,6 @@ def draw_segments(context, myobj, op, region, rv3d):
                             txtpoint2d = tmp_point[0] + ms.glfontx, tmp_point[1] + ms.glfonty
                             draw_text(myobj, txtpoint2d, tx_dist, rgb, fsize)
 
-                        '''
-                        try:
-                            tx_dist = ms.gltxt
-                            gap3d = (vn1[0], vn1[1], vn1[2])
-                            txtpoint2d = get_2d_point(region, rv3d, gap3d)
-                            draw_text(myobj, (txtpoint2d[0] + ms.glfontx, txtpoint2d[1] + ms.glfonty),
-                                      tx_dist, rgb, fsize)
-                        except:
-                            pass
-                        '''
                     # ------------------------------------
                     # Draw lines
                     # ------------------------------------
@@ -1195,12 +1185,11 @@ def draw_faces(context, myobj, region, rv3d):
                     b2d = get_2d_point(region, rv3d, a_p2)
                     c2d = get_2d_point(region, rv3d, a_p3)
                     # draw vectors
-                    if None not in (a2d, b2d, c2d):
-                        draw_arrow(a2d, b2d, 10, "99", "1")
-                        draw_arrow(b2d, c2d, 10, "99", "1")
-                        # Normal vector data
-                        txt = format_point(normal, precision)
-                        draw_text(myobj, point2, txt, rgb2, fsize)
+                    draw_arrow(a2d, b2d, 10, "99", "1")
+                    draw_arrow(b2d, c2d, 10, "99", "1")
+                    # Normal vector data
+                    txt = format_point(normal, precision)
+                    draw_text(myobj, point2, txt, rgb2, fsize)
 
         except:
             print("Unexpected error:" + str(exc_info()))
diff --git a/measureit/measureit_main.py b/measureit/measureit_main.py
index 5476931c..633a1754 100644
--- a/measureit/measureit_main.py
+++ b/measureit/measureit_main.py
@@ -26,6 +26,7 @@
 # ----------------------------------------------------------
 # noinspection PyUnresolvedReferences
 import bpy
+import bmesh
 from bmesh import from_edit_mesh
 # noinspection PyUnresolvedReferences
 import bgl
@@ -411,6 +412,10 @@ class MeasureitEditPanel(Panel):
                         if (ms.gltype == 1 or ms.gltype == 12
                             or ms.gltype == 13 or ms.gltype == 14) and ms.gltot != '99' \
                                 and ms.glfree is False:  # only segments
+                            if bpy.context.mode == "EDIT_MESH":
+                                bm = bmesh.from_edit_mesh(bpy.context.edit_object.data)
+                                if hasattr(bm.verts, "ensure_lookup_table"):
+                                    bm.verts.ensure_lookup_table()
                             if ms.glpointa <= len(obverts) and ms.glpointb <= len(obverts):
                                 p1 = get_point(obverts[ms.glpointa].co, myobj)
                                 if ms.gltype == 1: