You can override variables on the command line with -D, so for example, -Dinside_diameter=2. Pass --preview if you want colours. On Tue, 26 Apr 2022 at 10:36, Jeremy Ardley via Discuss < discuss@lists.openscad.org> wrote: > > > > ---------- Forwarded message ---------- > From: Jeremy Ardley <jeremy@ardley.org> > To: OpenSCAD general discussion <discuss@lists.openscad.org> > Cc: > Bcc: > Date: Tue, 26 Apr 2022 17:36:18 +0800 > Subject: [OpenSCAD] Scripted image generation? > > In my case I want to generate many images of O-Rings of varying sizes. > > I can do this with a very simple stanza of code with parameters for > thickness and internal diameter > > inside_diameter= 1.07; > oring_width=1.27; > $fn=200; > color("#505050"){ > rotate_extrude(){ > translate([(inside_diameter+oring_width), 0]){ > circle(oring_width); > } > } > } > > I then export the image each time I run it with different parameters > > I would like to automate this process so I can feed in a list of diameters > and thicknesses and get multiple PNG files as output. > > Is there any way to do this? > > As a secondary issue, I set the color to be used in my script and it works > in preview, but in render I only get one of a few possible variants > selected via the menu, > > I would like to be able to force render to use the color value of my > script. Is this possible? > > Finally, the lighting used is diffuse. It would be good to be able to > specify an origin and distance of the light source, and perhaps further, > specify a color or spectrum to use > -- > Jeremy > > > > ---------- Forwarded message ---------- > From: Jeremy Ardley via Discuss <discuss@lists.openscad.org> > To: OpenSCAD general discussion <discuss@lists.openscad.org> > Cc: Jeremy Ardley <jeremy@ardley.org> > Bcc: > Date: Tue, 26 Apr 2022 17:36:18 +0800 > Subject: [OpenSCAD] Scripted image generation? > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >