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Author Name: Michael Treglia (Michael Treglia)
Original Redmine Issue: 12581
Affected QGIS version: 2.8.1
Redmine category:rasters
When trying to use Singleband Pseudocolor rendering for a raster with very small-value, albeit high precision variables, applying the style fails. I'll note that upon import of the data, the Singleband Gray render type works fine.
Through testing, it seems that the module only has 16 bit variables, however sometimes rasters are higher precision than that allows. The particular raster I was working with was a kernel density surface (created in R), and the values were all extremely small (ranging 0 - 6.4773e-10). When applying a style, even after setting the value ranges for each color by hand, the entire surface appeared as a single color.
Multiplying the layer by 1000000 solved this problem, but having built-in capability to deal with such high precision would be great. Thus, it would be great to have higher-precision value-setting available for raster styles.
The text was updated successfully, but these errors were encountered:
qgib
added
Bug
Either a bug report, or a bug fix. Let's hope for the latter!
Rasters
Related to general raster layer handling (not specific data formats)
labels
May 25, 2019
Author Name: Michael Treglia (Michael Treglia)
Original Redmine Issue: 12581
Affected QGIS version: 2.8.1
Redmine category:rasters
When trying to use Singleband Pseudocolor rendering for a raster with very small-value, albeit high precision variables, applying the style fails. I'll note that upon import of the data, the Singleband Gray render type works fine.
Through testing, it seems that the module only has 16 bit variables, however sometimes rasters are higher precision than that allows. The particular raster I was working with was a kernel density surface (created in R), and the values were all extremely small (ranging 0 - 6.4773e-10). When applying a style, even after setting the value ranges for each color by hand, the entire surface appeared as a single color.
Multiplying the layer by 1000000 solved this problem, but having built-in capability to deal with such high precision would be great. Thus, it would be great to have higher-precision value-setting available for raster styles.
The text was updated successfully, but these errors were encountered: