QGIS direct access to ODC-WCS

[AnaBelgun]

• datacube-wms version:
• Python version:
• Operating System:

Acceptance Criteria

Works with QGIS versions 2.14 and 3.2

[SpacemanPaul]

Mostly seems to work with 3.2

Notes:

• Set your viewing canvas to an appropriate zoom level before adding the WCS layer.
• QGIS makes a lot of strange calls for reasons that are not clear, including several that attempt to pull the entire coverage area (at low resolution) which will always fail unless we get overviews working smoothly. But as long as the zoom level is appropriate, the layer will display eventually.
• The styling defaults to useless setting that will leave the screen completely black. The following steps give a viewable image reasonably quickly:

1) Turn off live update. 2) Select "multiband color" if necessary (should be selected by default) 3) Open the "Min/Max values settings" panel. 4) Select "Cumulative Count Cut" and set the range to 0.0% - 99.0% 5) Set the "statistics extent" to "updated canvas". 6) Click the "Apply" button

[SpacemanPaul]

When adding a WCS service to QGIS, add it as http, even if it prefers https. The QGIS client apparently doesn't know what https is. :/

[SpacemanPaul]

I think this is as far as we can go with the built-in QGIS WCS client.

Next steps would be to search the plugin repositories for a WCS client plugin that works better with our servers than the native one, or write our own WGIS plugin.