Ratgut - Random Terrain Generation Utility 
Copyright (c) 2016 wezu.dev@gmail.com

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, 
including commercial applications, and to alter it and redistribute it freely, 
subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.

Usage: ratgut.py [-res] [-edit] [-preset]

Options:
-res    resolution of the created maps (default 512)
-edit   show an interactive gui for editing the heightmap
-preset define a preset to generate a new map, the presets are:
        moutains
        hills
        dunes
        ridge
        foothills
        plains
        spikes
        canyon
        
You will need the Panda3D SDK to make this work.