View Full Version : How do I make a gore map

03-18-2012, 07:52 PM
I have a high-resolution topographic map of mars. I can't conceptualize it as a sphere and I need to draw some geographic regions on it. As such I was thinking of printing it out and making it into a globe then draw the regions on the globe, take it apart and scan it back in so I would have the regions I need flattened out appropriate to the actual globe.

As such, I need to know if there are any easy ways of making a gore map so I can do the globe. I found a gimp addon but I've never used gimp or would know how to use the addon.

Any help would be much appreciated, or if someone has a suggestion on how I could make this all easier that would be great too. See links below for more details:

Hi-res map:

Code for GIMP addon:

03-18-2012, 11:33 PM
This thread might be of use...


03-20-2012, 12:32 PM
Or this thread: http://www.cartographersguild.com/showthread.php?4216-free-SW-for-Transverse-Mercator-projections

-Rob A>

02-14-2015, 04:41 PM
If somebody is still looking for solution, I coded sinusoidal gores projection in javascript, and it is available here http://www.winski.net/?page_id=12 under BSD license (you can do whatever you want with the program and its source). It works in a web browser so you don't have to download anything.

02-16-2015, 05:35 AM
Cool. I ran a script for somebody not all that long ago. That thread was here: