I'm looking for flow accumulation open source implementation ( C++ or C# would do, Python no), on Windows, preferably the source code comes with Visual Studio project files so that I can just build and run immediately.
This is my actual problem statement:
I have a terrain ( in the form of mesh/element), and I want to indicate how the water flows in the terrain, subjected to gravity force and the terrain condition ( of course).
A crude way of doing this is to take every single mesh element, then draw the water flow direction from the highest point to the lowest, but I think this will result in a lot of ugly arrows that although can roughly point towards the correct directions, but really don't look nice when view as a whole.
I've asked this question at Computational Science Stack Exchange, but I reask here because I wonder whether there is any other flow accumulation option besides RichDEM, which I've some trouble with because I am not familiar with GCC compiler used to compile it, and also because I'm not too familiar with the R tools.