Templates or saveability/loadability in the color stretches (custom color maps)?

[qgib]

Author Name: yury_t - (yury_t -)
Original Redmine Issue: 805

Redmine category:rasters
Assignee: ersts -

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Is there any way to make color stretches saveable/loadable? Possibly,
the "Classify" parameters (palette?) saveable/loadable, too? Or would
the Classify templates be feasible?

Right now doing the customized stretch is lots of work, the result
isn't transferrable, and occasional hit of "Claassify" button resets
everything in the stretch.

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• slope.tar.bz2 (Maciej Sieczka -)

[qgib]

Author Name: ersts - (ersts -)

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You can now save your color maps as a textfile. It is a very simple format and could be edited or created by hand if a user wants

The structure of the file is:

1. {COMMENTS}
   INTERPOLATION: {Method = INTERPOLATED, DISCRETE, EXACT}
   {PixelValue},{RedValue 0-255},{GreenValue 0-255},{Blue 0-255},{Alpha 0-255}, {Label}
   {PixelValue},{RedValue 0-255},{GreenValue 0-255},{Blue 0-255},{Alpha 0-255}, {Label}
   {PixelValue},{RedValue 0-255},{GreenValue 0-255},{Blue 0-255},{Alpha 0-255}, {Label}
   ...

Where values inside {} are numbers or strings.

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• resolution was changed from to fixed
• status_id was changed from Open to Closed

[qgib]

Author Name: Maciej Sieczka - (Maciej Sieczka -)

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GDAL is able to create and interpret a colortable in an XML file, for any raster. Would it be possible to use this format instead of introducing QGIS's own one?

See the attached [[ArcInfo]] ASCII raster with an external colortable. QGIS renders the raster all nice in colors.

[qgib]

Author Name: ersts - (ersts -)

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I would prefer to not look at this as one format or another. I would rather see an enhancement request for QGIS being able import and export several different types of color maps/gradient formats - as there are some nice features in each but not all are 100% compatible - for example, class label support.

Currently QGIS will read/load any initial color map provided by GDAL for a band.

[qgib]

Author Name: Anónimo (Anónimo)

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Milestone Version 1.0.0 deleted