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I use QGIS 1.8.0 for Linux, and I want to draw roads manually on the map.

enter image description here

So according some tutorials, I use Raster>Geoferencer>Geoferencer to import a bitmap image including roads, and set Geoferencer like this screenshot.

However, after "Start geoferencing", the Geoferencer layer didn't appear on the map. Just like this:

enter image description here

I've tried move the reference layer to top and toggle "update drawing order" but it doesn't work.

What should I do?

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Which coordinate reference systems (Layer/Project CRS) are you using? – donschoe Jan 4 at 10:14
TWD67, and all of my layer set as that(including georeferencer) – kuanyui Jan 4 at 11:02
What happens if you "Zoom to Layer Extend" (right click)? – donschoe Jan 4 at 12:41

1 Answer

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Look for Settings -> Options, CRS Tab

under CRS for new Layer, you should activate Ask for CRS. and choose your custom CRS.

Standard is EPSG:4326, and the coordinates of your tif are most probably outside the allowed bounds of +-180°/90° of lat/lon coordinates.

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All of my layer is TWD67-TM2(a common CRS used in Taiwan), including groreferencer. But it doesn't work when georefrencing. – kuanyui Jan 4 at 11:09
Qgis Master offers EPSG:3827 and 3828 for that CRS. If you don't want to use that, you can use current GDAL to reproject the tif to a CRS known in your Qgis Lisboa. – Andre Joost Jan 4 at 11:17
Have tried, but doesn't work :( – kuanyui Jan 4 at 11:22
Can you share the referenced tif? – Andre Joost Jan 4 at 11:59

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