[fusion-trac] #585: Redline: Local staging area for drawn redlines

[Fusion]

#585: Redline: Local staging area for drawn redlines
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   Reporter:  jng          |       Owner:  jng   
       Type:  enhancement  |      Status:  new   
   Priority:  P2           |   Milestone:  Future
  Component:  Widgets      |     Version:  2.0   
   Severity:  Major        |    Keywords:        
External_id:               |       State:  New   
    Browser:  All          |          Os:  All   
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 The problem with the current redline widget is that each redline drawn
 triggers a map refresh. When redlining against a heavy map, this is
 somewhat undesirable behaviour.

 To alleviate this problem, we should support a local staging area where
 drawn redlines go. These are OpenLayers.Feature.Vector objects sit in a
 OpenLayers.Layer.Vector until the user commits the whole set of features
 up to be saved to the Redline feature source

 This is somewhat similar to the feature [create/checkout]-edit-checkin
 workflow for AutoCAD Map. The main benefit of this is improved efficiency
 as the user can draw multiple redlines in succession without an automatic
 refresh (unless the user pans/zooms around while drawing)

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Ticket URL: <http://trac.osgeo.org/fusion/ticket/585>
Fusion <http://trac.osgeo.org/fusion>
Fusion is a web-mapping application development framework for MapServer and MapGuide OS.