markstock / makeprofile

Generate a vertical profile image from a digital elevation model

makeprofile

Generate a png profile from an 8- or 16-bit digital elevation model

the above profile came from the horizontal centerline of this DEM

Build

If you have gcc and libpng installed, this should be as easy as

make

Run

It helps to have a 16-bit DEM or DSM as the input, though an 8-bit file will do. No consideration is paid to matching the vertical and horizontal dimensions - you need to do that math and set the output image pixel sizes appropriately.

./makeprofile.bin -i FranceLesArcs.png -o profile.png -x 2000 -y 781

To do

Many things need to be finished here!

• Use bilinear interpolation instead of nearest
• Allow arbitrary lines through the DEM/DSM
• Option to flip black and white in the output image

Credits

Thanks to the developers of CLI11. All the rest of the code is mine, cribbed from various projects.

Citing makeprofile

I don't get paid for writing or maintaining this, so if you find this tool useful or mention it in your writing, please please cite it by using the following BibTeX entry.

@Misc{Makeprofile2023,
  author =       {Mark J.~Stock},
  title =        {Makeprofile:  Generate a png profile from a digital elevation model},
  howpublished = {\url{https://github.com/markstock/makeprofile}},
  year =         {2023}
}