[fusion-trac] #492: If a point feature is set as the selection then the map zooms to the scale 1:1

[Fusion]

#492: If a point feature is set as the selection then the map zooms to the scale
1:1
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   Reporter:  yangte      |       Owner:  yangte                       
       Type:  defect      |      Status:  new                          
   Priority:  P3          |   Milestone:  2.3                          
  Component:  MapGuide    |     Version:  2.0                          
   Severity:  Minor       |    Keywords:  setSelection, setExtents, 1:1
External_id:  1383396.01  |       State:  New                          
    Browser:  All         |          Os:  Windows                      
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 If a point feature is set as the selection then the map zooms to a scale
 of 1:1.  The map should not zoom so far to a point feature. It would be
 rarely that 1:1 is useful for a GIS user.

 Steps to reproduce:[[BR]]
 1. Create a layer based on a point feature and add it to a map[[BR]]
 2. View the map in fusion web layout[[BR]]
 3. Use the ‘Query’ widget to find one of the features on the point
 layer[[BR]]
 4. Select one of the found features in the Results list and then click the
 ‘Select’ button[[BR]]
 5. Map is zoomed to 1:1[[BR]]
 6. Same thing happens when the setSelection javascript function is
 called.[[BR]]
 7. Same thing happens if a point feature is manually selected and then
 ‘Zoom Selection’ is used[[BR]]
 8. Same thing happens when choosing a result from the ‘Search’
 widget[[BR]]

 all these functions will call the js function "setExtents" in Map.js,
 when the parameter "oExtents" is a point which should be a rectangle, it
 will zoom to 1:1, to prevent this situation, I suggest to add a check like
 this:
 [[BR]]
 {{{
 if(oExtents.bottom == oExtents.top && oExtents.left == oExtents.right)
 {
     this.oMapOL.panTo(new OpenLayers.LonLat(oExtents.left, oExtents.top));
 }
 }}}

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Ticket URL: <http://trac.osgeo.org/fusion/ticket/492>
Fusion <http://trac.osgeo.org/fusion>
Fusion is a web-mapping application development framework for MapServer and MapGuide OS.