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 those running Xeon based processors. I'm wondering if there isn't some inherent difference in the floating point processing of the Xeon based systems that accounts for this. Has anybody else seen this phenomenon? Thanks Rick Rick Kaplan CAD Systems Administrator ECS Corporate Services, LLC 14026 Thunderbolt Place, Suite 300, Chantilly, VA 20151 T: 571-299-6000 D: 571-299-6006 C: 571-233-6128 F: 703-832-0265 www.ecslimited.com CELEBRATING 25 YEARS ******* _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user