====== Maps ======
Some functions take map handles as arguments, including most of the heightfield effect functions. To access a map, we use the ''GetMap'' function, like so:
calc.HF.ClampMap  -150.2 1224.6 true
The above code clamps the heightfield (retrieved by ) between an altitude of -150.2 metres and 1224.6 metres, and shows the progress bar whilst doing so (true).
By default, the following map are available:
^ Map name ^ What? ^
| "DM" | Design map |
| "HF" | Heightfield |
| "WM" | Water map |
| "WS" | Salinity map |
| "AM" | Attributes map |
| "TN" | Terrain normals |
| "SH" | Shadow map |
| "LM" | Light map |
| "SpecLM" | Specular light map |
| "TX" | Texture map |
More maps may be added by plugins, or by the user via the '//File->Import->Custom map layer//' or '//Layers->New map layer//' menu options.