[Qgis-user] Re: [Qgis-developer] announcing DPSimplify

[Giovanni Manghi]

Hi,

>  MultiLines are not supported yet.

this multiline vector

https://trac.osgeo.org/qgis/attachment/ticket/2493/evora_rios_shp.zip

causes qgis trunk to crash under ubuntu 9.10, when the plugin is used.
This is the terminal message:

--------
Warning: QObject::setParent: Cannot set parent, new parent is in a
different thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread
<unknown>: Fatal IO error 11 (Resource temporarily unavailable) on X
server :0.0
--------

maybe it would be better to add a control to warn the user that the
plugin does not work with such geometries.

With the same vector but under win xp (qgis trunk/osgeo4w) instead of a
crash I get a python error:

http://img51.yfrog.com/i/dpsimplifypythonerror.png/

Using the plugin with a copy of the vector obtained using the "multipart
to singleparts" tool works just fine.


cheers

-- Giovanni --