Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've got some old contour plots, paper copy only, that I'd like to be able to put into QGIS. I get as far as a successful polygonize into shp and it looks fine, but the scale is wrong. How might I either: 1. tell the raster routine the correct scale or 2. change the scale of a layer to the correct value in QGIS?

share|improve this question
1  
What do you mean by 'wrong scale'? There should be no issues if you were able to georeference raster correctly. – SS_Rebelious May 5 '13 at 5:18
    
Polygonize seems to use 1 map unit per pixel no matter what the georeference scale says, it just uses the x,y in the georeference. The tiff imports correctly when imported as a raster into QGIS. – johnsankey May 5 '13 at 12:10

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.