[Qgis-user] Accuracy of image export dependent on CPU?

[Alex Mandel]

On 09/18/2014 10:27 AM, RKaplan wrote:
> I've developed an AutoCAD based application that imports geo aligned
> image markers (blocks) into a plan using EXIF metadata from images taken
> by GPS enabled cameras.
> 
>  
> 
> The base drawing consists of a JPEG image exported from QGIS (Chugiak
> 2.4.0 Windows XP 32, Windows 7 32 and Windows 7 64).  The images are
> exported using various NAD27 State Plane CRSs.
> 
>  
> 
> We're running into a situation where, on some of our systems, the image
> and world file generated by QGIS is off by up to 120'.  The same map and
> data, exported on other systems, will be very close - within a few feet
> of the camera image markers.
> 
>  
> 
> I've only been able to test this on a half dozen systems, but the only
> ones that generate an accurate JPEG/world file are running Xeon based
> processors.
> 
>  
> 
>  
> 
> Rick Kaplan
> 
> CAD Systems Administrator
> 

So you're using Project -> Save as Image?
Projection on the fly enabled?

Got an image some of us can test with?

Thanks,
Alex