[Qgis-user] 'snapSegmentWithContext' with Quantum Navigator

[Martin Dobias]

Hi Joe

the Quantum Navigator project has been dead for several years, so such
errors from old API calls can jump at you from any corner. I'm quite
busy nowadays, so I guess you're on your own :-(

btw. for your particular error: try to have a look at the
QgsVectorLayer class. There are other snap*() functions which I
believe have replaced that snapSegmentWithContext method.

Regards
Martin

On Sun, Oct 17, 2010 at 5:54 PM, Joe Larson <joelarso at gmail.com> wrote:
> Hello All,
>
> I'm trying to get Quantum Navigator
> http://www.mapserver.sk/~wonder/qnavigator/ going on Maverick Meerkat, built
> against QGIS trunk.
>
> jef on IRC helped me with the API switch past QGIS 1.0, which got me past
> the initial 'make' compile. I got through ./dgbuild and can run
> qnavigator.py, but when I am in the 'Routing' tab and pass a Start event
> from(to) the map.
>
> seems 'snapSegmentWithContext' is stumping me:
>
>
> Traceback (most recent call last):
>   File "/home/joe/dev/qnavigator/python/gui/tools.py", line 21, in
> canvasReleaseEvent
>     self.callback(self.pos)
>   File "/home/joe/dev/qnavigator/python/gui/main.py", line 257, in gotStart
>     pnt = self.routing.setStart(pos)
>   File "/home/joe/dev/qnavigator/python/routing/routing.py", line 159, in
> setStart
>     self.start  = self.layer.findNearestPoint(point)
>   File "/home/joe/dev/qnavigator/python/routing/routing.py", line 84, in
> findNearestPoint
>     (result, point, vertexIndex, fid, geom) =
> self.snapSegmentWithContext(point, RoutingLayer.tolerance)
> AttributeError: 'RoutingLayer' object has no attribute
> 'snapSegmentWithContext'
>
>
> does anyone have any advice? i tried adjusting the tolerance, researching
> besides that...thank you,
>
> ~joe
>
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