Thanks for your contribution!
I personally have several proposals:
- Alignment tools: can be used to manually align and arrange uv islands, works just like 2D graphic softwares adobe illustrator or inkscape etc.
- Average islands scale according to the active island: the way Average islands scale command currently works is to scale every selected island to match a ratio. By adding a option, to make it possible to set the active island to be the base or reference, keeping it untouched and scale others.
- Export UV Layout with real world units: by now, blender can exports vector file formats as SVG and EPS, consider supporting pdf format and keep it’s size and unit the same as the meshs’ size and unit. A very good reference implent is a addon comes with blender called “Export Paper Model”.
Finally, wish your project in smooth progress!