<p>Marco,</p>
<p>I am not a developer, but I use both QGIS and ArcGIS on a regular basis and I have experienced the behavior that you described in ArcGIS a number of times with shapefiles that have never been "touched" by QGIS. I haven't been able to pin down a pattern of when it happens, but I suspect it is an ESRI problem.</p>
<p>Regards, </p>
<p>Matt</p>
<p><blockquote type="cite">On Jul 22, 2009 3:19 AM, "Marco Lechner - FOSSGIS e.V." <<a href="mailto:marco.lechner@fossgis.de">marco.lechner@fossgis.de</a>> wrote:<br><br>Hi,<br>
<br>
I'm having a weird problem with some shape-files. May be it's a QGIS- or<br>
a ArcGIS Bug:<br>
I'm managing a lineshape exported from an ArcGIS geodatabase into a<br>
lineshape. Extracts (also done with ArcGIS) are edited in QGIS (by the<br>
way: the editors find it much more comfortable to use QGIS for that. I<br>
just have to use ArcGIS for extensive Topology testing). We are using<br>
QGIS 1.2.0 unstable (Codestand 10965M on Windoof), because of some fixed<br>
Bugs from earlier versions that hit us.<br>
The problem is:<br>
The shapes seem to be without any problem using QGIS, but when I add it<br>
to ArcMap some Lines disapear at a specific Zoomlevel.<br>
The problem disapears by exporting the shape from ArcMap into a new shape.<br>
I'm not sure how to find the "guilty party" (well, I know who is the<br>
guilty one in general). Is it QGIS creating dirty shapes? Or is it just<br>
a Bug in ArcGIS? Honestly it's quite hard to get any support from ESRI.<br>
Does anybody who is just in the Code able to say, if it could be QGIS or<br>
ArcGIS doing something wrong?<br>
<br>
Marco<br>
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</blockquote></p>