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I am using QGIS to open mrsid files from NAIP, clipping the part of the county that I need and using the "save as" option to export as a geotiff in state plane coordinates for use in Autocad. I am having a few issues with this method: First, the resolution on the image is not great. Second, the insertion point comes into Autocad correctly but when I close the image correlation dialogue box the image rescales for some reason.

I can rescale the image, but am wondering what I'm doing wrong?

  • You might want to show the original, transformed image, or give a bit more detail. – John Powell May 22 '16 at 6:42
  • It depends on CAD. Simplest way any of this family members understands is image rectangle shape, vector. Scale raster to opposite corners – FelixIP May 22 '16 at 9:45
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As an alternative to Save As ..., you can try Raster -> Conversion -> Translate. It allows you to rescale the output as well.

If you need a different coordinate system, you have to use Raster -> Projections -> Warp.

I'm not sure what units of measure Autocad uses, QGIS uses degrees, meters or feet, depending on the layer's CRS. You can create a custom CRS that uses other units if needed.

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