> On Mar 15, 2016, at 8:14 PM, Alex Mandel <tech_...@wildintellect.com> wrote: > > On 03/15/2016 11:02 AM, Adam Dershowitz wrote: >> I have a DWG fie that was provided to me. If I use any of a few viewers it >> appears to be correct. I then used TeighaFileConverter to convert it to a >> DXF file, and again it appears to be correct. But, when I import it into >> qgis, the LineStrings generally have the correct shape, but also have extra >> lines that go over to the origin. >> My DWG shape file is somewhat away from the origin. So, that means that >> there a whole bunch of extra lines connecting my object over to the origin >> when viewed in QGIS. >> I tried a few different DXF version of the export with no change. And, a >> few other viewers that don’t seem to have that problem. >> Does anyone have any suggestions for why that might be happening? Or how I >> can prevent it? Or, as a work around is there any way to just filter out >> all the points that are near the origin? >> This first occurred in QGIS 2.12, but I just upgraded to 2.14 and confirmed >> the same problem. I am using Mac OS 10.11.3. >> >> Thanks, >> >> >> --Adam >> > > It sounds a little like invalid geometries, or geometries that cross the > edges to wrap around to the other side (a common issue with data at the > dateline for example). > > Try running the geometry checking tools. > > Thanks, > Alex >
The geometry checking tool does report hundreds of errors. Many of these are "line 0 contains 7 duplicate node(s) at 8” So, what can I do about it? Any suggestions for why this happens and how to fix it? The data is not near a dateline, but is just a region in the middle of a state plane zone, except for all the lines that go over to 0,0. And, as I said, the DWG, and DFX both look OK in other viewers. _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
