OpenSCAD surface Gimp Export Plugin by ffaat

3D Printing

OpenSCAD surface Gimp Export Plugin

ffaat

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Published on November 22, 2012

Description

I've written a gimp python plugin to export the openscad surface format. The pic shows the greyscale height-field and the resultant openscad surface.
This was done to design terrain in gimp and send the tiles to a 3d printer.

Instructions

Extract the python file an put it in your gimp plugin directory.
Open a greyscale image in gimp then save it with a ".dat" extension (i.e. "testsurface.dat"

Then use this in openscad comme ca:

surface(file = "testsurface.dat", center=true, convexity = 5);

and scale as needed...

Note that really large surface files will cause openSCAD to die horribly, so it is best to prescale the image before exporting.

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flurin on April 18, 2013 said:

Thank you for the Plug-In. I tested it with Gimp 2.8.3 (OS X 10.8.3), it works.

How-to for use with Customizable Lithopane offline:

First extract the python file "openscad_surface_export.py" and put it in your gimp plugin folder (/Application/Gimp/Content/Resources/lib/glimp/2.0/plug-ins)

1. Open an image in Gimp.
2. Select <img> (right mouse click) Image -> Mode -> Grayscale.
3. Invert Colors: Menu > Colors > Invert.
4. Export the image with a ".dat" extension (i.e. "Surface.dat").

However it doesn't work with the latest Gimp-Version 2.8.4.

ffaat on April 18, 2013 said:

Can you be more specific other than "it doesn't work"? Are there any errors, does the file get created incorrectly, or nothing at all?

benbois on February 23, 2013 said:

Hi, I tested your plugin with Gimp 2.8.x in Linux, it doesn't work maybe with the new politic of the Saving menu (only Gimp file here).

pyrophreek on March 22, 2013 said:

For the newer version of GIMP, you need to use the export command, then select the .dat extension. Works great for me now. A bit of a learning curve to get it working. Awesome plugin!