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This has been a constant source of frustration for me. I can't seem to always get my map scale in meters in QGIS, even if I use a CRS that has map units of meters, e.g. Alberts Equal Area and others. Sometimes it works, but most of the time it doesn't.

I usually work with an area of a few square kilometers. I then have to georeference a satellite image of the area and load my different vector and raster data. Let's specifically look at the georeferencing, I first deselect OTF, then I select my GCP points and set my transformation type. Then I select the CRS, e.g. Hartebeeshoek94/Lo25 (map units = meters) and run the georeferencer. The result is a georeferenced satellite image with the correct coordinates but a scale of 1:1. The scale bar is then also completely incorrect in the map composer. I have now found that every time I save the georeferenced image as a CRS with the units in meters, the scale loads as a 1:1. When I load the layer as a CRS with map units in degrees, the scale is correct by the scale bar is still incorrect in the map composer (as would be expected).

  • Would you be able to edit your question to detail the precise steps that you performed to get the first problem that you mention, please? As per the tour there should be one question/problem per question posed here. – PolyGeo Jan 27 '16 at 7:14
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    Also can you indicate what you are trying to do, that you need to view the entire country in a projected CS? One would normally set it to the local projection for the area e.g. LO19 for Cape Town, LO31 for Durban etc. – Cindy Jayakumar Jan 27 '16 at 7:44
  • Are you georeferencing by clicking on the map canvas, or by entering coordinates manually? – AndreJ Jan 27 '16 at 13:26
  • I use the map canvas – Douw Jan 27 '16 at 14:11
  • You have to choose the same CRS as the map canvas is. – AndreJ Jun 29 '16 at 12:01

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