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Updated RFC: Raster color interpretation (markdown)

Sandro Santilli 2014-07-16 01:13:06 -07:00
parent f13976390d
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RFC:-Raster-color-interpretation.md

@ -1,6 +1,7 @@
``` ```
Author: Sandro Santilli <strk@keybit.net> Author: Sandro Santilli <strk@keybit.net>
Last Updated: 2014-07-11 Last Updated: 2014-07-16
Version: 0.2
Status: draft Status: draft
``` ```
@ -31,29 +32,32 @@ The band parameter could have the following values:
Same as `rgba:1,2,3,4` Same as `rgba:1,2,3,4`
- `grayscale[:<n>]` - `g[:<n>]`
Grayscale.
Where `<n>` is an integer representing 1-based band indexes. Where `<n>` is an integer representing 1-based band indexes.
- `grayscale` - `ga[:<g>,<a>]
Same as `grayscale:1` Grayscale with alpha.
Where `<g>` and `<a>` are integer representing 1-based band indexes.
- `data[:<n>]` - `d[:<n>]`
Where `<n>` is an integer representing 1-based band indexes. Where `<n>` is an integer representing 1-based band indexes.
- `<n>` - `<n>`
Same as `data:<n>`. Same as `d:<n>`.
**This is for backward compatibility with the GDAL plugin** **This is for backward compatibility with the GDAL plugin**
- `auto` - `auto`
The default value, if band parameter is omitted, enables guess based on input raster: The default value, if band parameter is omitted, enables guess based on input raster:
- If the input has 1 band, `g` assumed
- If the input has 2 band, `ga` assumed
- If the input has 3 bands, `rgb` assumed - If the input has 3 bands, `rgb` assumed
- If the input has 4 bands, `rgba` assumed - If the input has 4 bands, `rgba` assumed
- If the input has 1 band, `grayscale` assumed
- `-1` - `-1`