[Qgis-developer] Where are the points?

Tim Sutton lists at linfiniti.com
Thu Dec 6 00:22:58 PST 2012


Hi


On Thu, Dec 6, 2012 at 8:47 AM, Justin Hubbard
<justin at pyrotechsoftware.com>wrote:

> Hi
>
> I am using QGis 1.8.
> The code I am using is identical to the code in the cookbook. I have also
> tried doing this in the console. Same result.
> When I create a new shapefile layer and add the points as described in the
> code, they appear correctly.
> However with this layer - Which is a Spatialite Layer I cannot see the
> points at all.
>
> With regards to the symbology, I have tried new and old symbology, and
> even loading the layer in a blank project with no custom symbology at all.
> Same result.
> If I use the map tool to create a point with the mouse the point appears,
> and works correctly. This is causing me to think that the error is in the
> code. (Perhaps Spatialite requires something extra?)
>
>
Justin it is always better to provide code samples (as plain text)  - it
makes it much easier to help you as we can see exactly what you are
doing....


Did you commit your changes to the dataset?

Regards

Tim


>
> On Wed, Dec 5, 2012 at 8:35 PM, Ian Packham <i.packham at ucd.ie> wrote:
>
>> Justin
>>
>> Which version of QGIS are you using? Are you using code exactly as in the
>> cookbook (Using Vector Layers chapter?)?. If not, can you provide the code?
>> Also how did you create the symbology?
>>
>> Ian
>>
>>
>> ----- Original Message -----
>> From: Justin Hubbard <justin at pyrotechsoftware.com>
>> Date: Wednesday, December 5, 2012 1:51 pm
>> Subject: [Qgis-developer] Where are the points?
>> To: qgis-developer <qgis-developer at lists.osgeo.org>
>>
>> > In my plugin, I am able to create features as per the cookbook. And
>> when I zoom to the layer extent I can see the points are there and they are
>> rendered as per my symbology.
>>
>> > However when I try to zoom / Pan to them, they disappear.
>> > If I run QgsFeature.isValid() they all return true. I just cannot
>> understand it.
>> >
>> > --
>>
>> > Warm regards
>> *> Justin Hubbard*
>> >
>> **
>>
>
>
>
> --
>
> Warm regards
> *Justin Hubbard*
>
> *--*
>
>
>
>
>
> *Justin Hubbard*
>
> Software Engineer and Support
>
>
>
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>   justin at pyrotechsoftware.com <robert at plannermunicipalsoftware.co.za>
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-- 
Tim Sutton - QGIS Project Steering Committee Member (Release  Manager)
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