[mapguide-trac] #267: "Bobbing" effect when zooming with mouse wheel or panning in Firefox 2.0.0.7

[MapGuide Open Source]

#267: "Bobbing" effect when zooming with mouse wheel or panning in Firefox
2.0.0.7
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 Reporter:  jng          |         Owner:       
     Type:  defect       |        Status:  new  
 Priority:  medium       |     Milestone:       
Component:  AJAX Viewer  |       Version:  1.2.0
 Severity:  minor        |    Resolution:       
 Keywords:               |   External_id:       
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Changes (by MaksimS):

  * priority:  low => medium

Comment:

 I guess "bobbing" here represents a discrepancy between refreshing of
 dynamic layers over base ones when using mouse-wheel zoom in/out. It also
 happens with IE 6.x, including other versions of IE. In IE, panning
 operation performs OK - without "bobbing" effect.

 My map has several groups of fully tiled (cached) base layers. It also has
 few standard (dynamic) layers. When user performs mouse-wheel zoom in/out,
 base layers disappear while dynamic ones get "zoomed". Looks ugly and
 confusing at the same time.

 IMHO, both dynamic and base layers should follow identical refreshing
 scheme - they should both either disappear, or "zoom" in/out.

 Please see attached images. Parcels (polygons with black edges) belong to
 dynamic layer. All other polygons below belong to pre-cached base layers.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/267#comment:3>
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