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I was wondering how to check the value of a pixel at a mouse click in QGIS (as of 2.4).

In ArcGIS, the Identify tool does the job for both rasters and vectors. However, in QGIS, the Identify tool seems to be greyed out when only one raster layer is loaded.

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    Even if there is only one layer, you have to select it in the TOC to activate the identify tool.
    – AndreJ
    Feb 21, 2015 at 6:01
  • That's kind of unintuitive. But thanks though. That might be the issue.
    – tinlyx
    Feb 27, 2015 at 18:45

1 Answer 1

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In QGIS v.2.6.1, I can effectively use the Identify tool to get values from each raster band on a mouse click.

Additionally (and if you are using other QGIS versions), you could use the Value Tool plugin, which displays raster band values (and even a graph) on mouse movement.

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    Thanks! I just upgraded to QGIS 2.6.1, and it works as suggested.
    – tinlyx
    Feb 21, 2015 at 4:11

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