GPencil: Guides: Refactor and add new ISO option

+ Simplify code, move into own function and run once rather than on every point
+ Improved snapping when a stroke is between increments
+ Added ISO grid option for lines specified by Angle under guide settings
+ Radial snapping mode uses Angle as an offset

Differential Revision: https://developer.blender.org/D5668

1 files changed, 2 insertions, 2 deletions

diff --git a/release/scripts/startup/bl_ui/space_view3d.py b/release/scripts/startup/bl_ui/space_view3d.py
index 89de137df76..a86d09c55e6 100644
--- a/release/scripts/startup/bl_ui/space_view3d.py
+++ b/release/scripts/startup/bl_ui/space_view3d.py
@@ -6077,7 +6077,7 @@ class VIEW3D_PT_gpencil_guide(Panel):
         col.active = settings.use_guide
         col.prop(settings, "type", expand=True)
 
-        if settings.type == 'PARALLEL':
+        if settings.type in {'ISO', 'PARALLEL', 'RADIAL'}:
             col.prop(settings, "angle")
             row = col.row(align=True)
 
@@ -6089,7 +6089,7 @@ class VIEW3D_PT_gpencil_guide(Panel):
             else:
                 col.prop(settings, "spacing")
 
-        if settings.type in {'CIRCULAR', 'RADIAL'}:
+        if settings.type in {'CIRCULAR', 'RADIAL'} or settings.use_snapping:
             col.label(text="Reference Point")
             row = col.row(align=True)
             row.prop(settings, "reference_point", expand=True)