[QGIS-trac] [Quantum GIS] #1325: Multipoint layer problems - zoom to selection doesn't work; layer extent has wild values on editing

[Quantum GIS]

#1325: Multipoint layer problems - zoom to selection doesn't work; layer extent
has wild values on editing
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   Reporter:  smizuno                           |              Owner:  nobody       
       Type:  bug                               |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.0.0
  Component:  Vectors                           |            Version:  HEAD         
   Keywords:                                    |   Platform_version:               
   Platform:  All                               |           Must_fix:  Yes          
Status_info:  0                                 |  
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 Vector layers of type Multipoint have the following problems:

 1. Zoom to selection doesn't do anything.

 2. When editing - adding or deleting points - the extent as shown in
 properties, Metadata goes to some wild values.

 This causes zoom to layer extent to zoom to a very small scale, such that
 the scale bar on the map shows a distance on the order of 1e+200km

 The points added are correctly positioned. Reloading the layer fixes the
 extents display.

 some examples of the extents shown in Metadata (layer has a few points
 over about 1000m):[[BR]]
         start:          xMin,yMin 499999,5e+06 : xMax,yMax
 501001,5.001e+06[[BR]]
         add point:      xMin,yMin 499999,-1.51934e-93 :
 Max,yMax2.95439e+202,5.001e+06[[BR]]
                         xMin,yMin 499999,5e+06 : xMax,yMax
 1.09228e+209,1.2796e+156[[BR]]
         delete point:   xMin,yMin 4.94066e-324,-2 : xMax,yMax 4.94066e-
 324,2[[BR]]

 I have tested with PostGIS and shapefiles.

 Expected behaviors: Zoom to selection operates as it does for Points - a
 single point is displayed at a fairly large scale; multiple points should
 be displayed over most of the map view.

 On add and delete points the extents should reflect the minimum/maximum of
 the locations of the layer.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/1325>
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