TerrainGeneration (user)
From OpenCity
Opencity have a built-in map generator, also allow loading from height-map.
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Built-in generator
Usage: opencity {...} --generator-seed seed [--generator-map MAP-TYPE] [--generator-water WATER-TYPE]
[--generator-map-shape MAP-SHAPE-TYPE] [--generator-tree-density TREE-DENSITY-TYPE]
It generate a height-map post-processed by different kinds of re-sharper. Look at TerrainGeneration to see how it work.
Map type
0=plain (default) 1=hill 2=mountain
Set rough base map.
Map shape type
0=none (default) 1=island 2=volcano 3=crater
Re-shape the base map in order to look like.
Water type
0=dry 1=lake (default) 2=coast
Set water level.
Tree density type
0=sparse (default) 1=normal 2=dense
Generate a tree density (height-map), same thing as map type but for tree.
Height-map loader
Usage: opencity {...} [--generator-height-map heightMapPicture]
Load a gray-level picture as height map (PNG). The water level is gray level 128, each map level is one gray level. that's why the whole picture seems to be in a medium gray, because there's only a minor difference between the pixels. You can draw yourself the height-map or generate from any map sources. The interesting data for this work are the DEM satellite data. The map generator in OpenCity will crop the picture if it's too big.
