[Qgis-developer] Where are the points?
Pēteris Brūns
pb at sungis.lv
Thu Dec 6 05:56:47 PST 2012
Hi,
simplest way is to reindex, if that does not work delete existing and
create a new.
See in spatialite deocumentation
http://www.gaia-gis.it/gaia-sins/spatialite-tutorial-2.3.1.html#t8 and
here
http://www.gaia-gis.it/spatialite-3.0.0-BETA/spatialite-cookbook/html/rtree.html
And check if the data at all are stored in database.
Regards,
On 2012.12.06. 15:12, Justin Hubbard wrote:
> Hi.
>
> When I load the layer outside of the plugin I get the same problem.
> If there is a problem with the database indexes, how would I rectify this?
>
>
> On Thu, Dec 6, 2012 at 10:36 AM, Pēteris Brūns <pb at sungis.lv
> <mailto:pb at sungis.lv>> wrote:
>
> Hi,
>
> try to open your Spatialite db and add layer without plugin. If
> then also are missing some geometries can be problems with your
> Spatialite database indexes.
>
> Regards,
>
> On 2012.12.06. 10 <tel:2012.12.06.%2010>:22, Tim Sutton wrote:
>> Hi
>>
>>
>> On Thu, Dec 6, 2012 at 8:47 AM, Justin Hubbard
>> <justin at pyrotechsoftware.com
>> <mailto: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
>> <mailto: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
>> <mailto: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
>> <mailto: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
>>
>>
>>
>> Mobile:
>>
>>
>>
>> +27 (0)79 827 1657 <tel:%2B27%20%280%2979%20827%201657>
>>
>>
>>
>> Fax:
>>
>>
>>
>> +27 (0)86 540 6016 <tel:%2B27%20%280%2986%20540%206016>
>>
>>
>>
>> Email:
>>
>>
>>
>> justin at pyrotechsoftware.com
>> <mailto:robert at plannermunicipalsoftware.co.za>
>>
>>
>>
>> Web Site:
>>
>>
>>
>> www.pyrotechsoftware.co
>> <http://www.plannermunicipalsoftware.co.za/>m
>>
>>
>>
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>>
>>
>>
>> --
>> Tim Sutton - QGIS Project Steering Committee Member (Release
>> Manager)
>> ==============================================
>> Please do not email me off-list with technical
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>> more exposure for your issues and the knowledge
>> surrounding your issue will be shared with all.
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>
>
> --
> Pēteris
>
>
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>
>
>
>
> --
>
> Warm regards
> *Justin Hubbard*
>
> *--*
>
>
>
>
>
> *Justin Hubbard*
>
> Software Engineer and Support
>
>
>
> Mobile:
>
>
>
> +27 (0)79 827 1657
>
>
>
> Fax:
>
>
>
> +27 (0)86 540 6016
>
>
>
> Email:
>
>
>
> justin at pyrotechsoftware.com <mailto:robert at plannermunicipalsoftware.co.za>
>
>
>
> Web Site:
>
>
>
> www.pyrotechsoftware.co <http://www.plannermunicipalsoftware.co.za/>m
>
>
--
Pēteris Brūns
SunGIS
+371 26336691
pb at sungis.lv
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