![]() A triangle is transformed into a vertex by fitting a circle to the three triangle vertices and setting the circle's center as the position of a Voronoi vertex. The dual of the Delaunay triangulation is computed to produce a Voronoi diagram, which is also stored as a DCEL.Įach vertex in the Delaunay triangulation becomes a face in the Voronoi diagram, and each triangle in the Delaunay triangulation becomes a vertex in the Voronoi diagram. The triangulation is stored in a doubly connected edge list (DCEL) data structure. The set of points are triangulated in a Delaunay triangulation. Generating Irregular GridsĪ Poisson disc sampler generates a set of random points with the property that no two points are within some set radius of eachother. The map generation process involves the generation of irregular grids, the generation of terrain, the generation of city/town locations and their borders, and the generation of label placements. map_generation.exe -v -timeseed -r 0.08 -o fantasy_map.png Map Generation Process The following command will output program information to the screen (-v), will set the random generator seed to your current system time (-timeseed), will set the resolution to 0.08 (-r 0.08), and write the generated map to the file fantasy_map.png (-o fantasy_map.png). v, -verbose output additional information to stdout ![]() drawing-supported display whether drawing is supported and exit no-arealabels disable area label drawing draw-scale= set scale of drawn lines/points erosion-steps= number of erosion iterations To check if P圜airo was installed correctly, try importing the module within the Python interpretor: The relevant section is titled "Graph plotting in igraph on Windows". Prebuilt Windows binaries for P圜airo and its dependencies can be obtained by following this guide on installing igraph, which uses P圜airo for drawing. There are three dependencies that are required to build this program: The project page and generation notes are also available here: ![]() ![]() This project uses jsoncons for parsing JSON data, Argtable3 for parsing command line arguments, Python and P圜airo for drawing, and data from GeoNames for city name data. ![]() This program is an implementation of a fantasy map generator written in C++ based on the methods described in Martin O'Leary's "Generating fantasy map" notes ( ). ![]()
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