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heightmap's Issues

Extract texture data from tiles

Tiles are numbered as:

  • A1 - 90N, 180W to 0N, 90W
  • B1 - 90N, 90W to 0N, 0W
  • C1 - 90N, 0W to 0N, 90E
  • D1 - 90N, 90E to 0N, 180E
  • A2 - 0N, 180W to 90S, 90W
  • B2 - 0N, 90W to 90S, 0W
  • C2 - 0N, 0W to 90S, 90E
  • D2 - 0N, 90E to 90S, 180E

subdomains

Generated heightmap/texture dimensions off by one

Width/Height is 1 pixel too big.

Example. In heightmap each degree should be 86400/360 = 240 pixels. The example cmdline:

./hm 74 3 19 27 scandinavia

should generate a 27_240 x 19_240 = 6480 x 4560 heightmap image, but the generated image is 6481 x 4561 pixels.

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