Tool for map projections

Is there a tool which allows me to create projections of maps out of a wad like this: ?

I would be very thankful for any input concerning this topic!

Well you can use SLADE to save an image of the map view (similar to automap). It's not 3-D like above though.

Or GZDoom Builder's Visual Mode? Before scrolling high above the map turn Preferences/Interface/View distance to max 9000 mp.

Or try exporting the map from GZDB as wavefront.obj and then open it in some 3D editing program.
 

thank you for your answers, my original idea was also using slade and make a screenshot in 3D mode.

the problem here is that this will result into a perspective projection and not like in the image above a orthographic projection (what I need).

additionally since I want to do this with a lot of maps this procedure would take ages.

The author of that image used a self-made tool. He describes the process here: http://ian-albert.com/games/doom_maps/ There is no link to the program but perhaps you can ask kindly?

7 hours ago, Memfis said:

The author of that image used a self-made tool. He describes the process here: http://ian-albert.com/games/doom_maps/ There is no link to the program but perhaps you can ask kindly?

thank you! I already did that but sadly he does not have the code anymore...