[mapguide-trac] #968: Preview FeatureSource depends on Aggregates

[MapGuide Open Source]

#968: Preview FeatureSource depends on Aggregates
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 Reporter:  ksgeograf                            |         Owner:  brucedechant
     Type:  defect                               |        Status:  closed      
 Priority:  low                                  |     Milestone:  2.1         
Component:  General                              |       Version:  2.0.2       
 Severity:  trivial                              |    Resolution:  fixed       
 Keywords:  preview viewer aggregate OGR extent  |   External_id:              
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Changes (by brucedechant):

  * status:  assigned => closed
  * resolution:  => fixed

Old description:

> The FeatureSource Preview has been updated to use the actual contents of
> the datasource for determining the preview extent. This is optimal for
> most FeatureSources, but some providers (like the OGR provider) does not
> support the requested aggregates.
>
> There should be a fallback method to use the spatial extent from the
> spatial context, if the aggregate function fails, as that is better than
> no preview at all (and actually correct for the OGR provider).

New description:

 The !FeatureSource Preview has been updated to use the actual contents of
 the datasource for determining the preview extent. This is optimal for
 most !FeatureSources, but some providers (like the OGR provider) does not
 support the requested aggregates.

 There should be a fallback method to use the spatial extent from the
 spatial context, if the aggregate function fails, as that is better than
 no preview at all (and actually correct for the OGR provider).

Comment:

 Fixed.

 See changeset r3831

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/968#comment:7>
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