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i have a shape file wit UTM zone 16. This projection is wrong. It must be UTM zone 32. How can i correct the projection?

When i convert (f-tool) to UTM zone 32, all the vector are rotated. The property of the layer shows funny numbers that is not correct:

xMin,yMin -4417494.80;6867783.98 : xMax,yMax -4416554.49;6869279.82

Correct property shold be:

xMin,yMin 3410596.14;5317812.48 : xMax,yMax 3411876.35;5318694.50
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2 Answers 2

If your file is actually in UTM32 and not UTM16 then you need to update the .prj file not actually reproject the data which is what f-tools (ogr2ogr?) is actually doing. So go to http://spatialreference.org/ref/epsg/32632/ and download the .prj file provided there, save it with the same name as your shapefile and all should be fine.

Note: You will need to make sure you have picked the right UTM projection (I just guessed with the link above.

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great! It works. Thank you –  Sattaya Apr 16 '12 at 15:19
1  
@Sattaya: Please mark the answer "accepted" if your problem is solved. –  underdark Apr 17 '12 at 13:37

You don't need to convert / reproject the shapefile!

Right-click on the layer in QGIS and "Set Layer CRS" - you will see the (incorrect) UTM Zone 16 indicated there, and you need only select the correct CRS (32).

HOWEVER ... to be really careful, I would strongly advise you to:

  1. Delete the .prj file associated with the shapefile;
  2. Add the shapefile to your canvas with other Zone 32 data (and only that data) to ensure that it lines up properly;
  3. Set the layer CRS once you're sure it's correct.

You can 'save as' the layer to generate a shapefile with the correct .prj file at that point.

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