AW: [gdal-dev] Shapefile spatial index and updates

[Hugentobler Marco]

Hi Chaitanya

Thanks for this information. So I'm going to commit the workaround to QGIS for now and remove it later once your work is finished (and the corresponding OGR version found it's way into most standard distros).

Regards,
Marco

-----Ursprüngliche Nachricht-----
Von: Chaitanya kumar CH [mailto:chaitanya.ch at gmail.com]
Gesendet: Fr 31.07.2009 14:47
An: Hugentobler  Marco
Cc: gdal-dev at lists.osgeo.org
Betreff: Re: [gdal-dev] Shapefile spatial index and updates
 
Marco,

I have been working on this. http://trac.osgeo.org/gdal/ticket/2798

On Fri, Jul 31, 2009 at 6:12 PM, Hugentobler Marco <
marco.hugentobler at karto.baug.ethz.ch> wrote:

> Hi gdal/ogr devs
>
> In QGIS, there is a bug where updates to shapefiles are not displayed until
> the spatial index of a shapefile is recreated (
> http://trac.osgeo.org/qgis/ticket/1572).
>
> It seems to me that OGR does not update the index automatically when
> calling e.g. OGR_L_CreateFeature and then OGR_L_SyncToDisk.
>
> What I did is to check (in the ogr provider of qgis) if the shapefile
> already has an index file and, if yes, create a new spatial index. But this
> way, the whole index needs to be recreated, so I wanted to ask here on the
> list if you know about any more efficient and / or more elegant way to solve
> this problem.
>
>
> Thanks for your help,
> Marco
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Best regards,
-- 
Chaitanya kumar CH.