a place to shine a light on the work of students and teachers
Plugin is available for v6 pc only. When loaded it is permanent in your Rhino 6. No MAC Version.
For the Mac, google to find Mac Raster to Vector software.:
The Link: Trace plug-in. Download and Dbl-click
Install Trace for "Just Me" option
The Video: Trace Video (video will demonstrate the steps listed below):
1 cmd: Trace. (as you 'play' with the settings remember the 'Default Value' button... don't worry)
2 cmd: SelOpenCrv. Used to find open curves.
3 cmd: 'ShowEnds' will help you locate the openings. A new command with CrvStart, CrvEnd, etc to help you locate the openings in your curves.
4 Use an appropriate command(s) to 'close' up the open curve(s) with the goal of 'closed' geometry.
For v5 users, Inkscape is a useful tool to create curves from an image. Scroll down Projects/Tutorials/Tab.