[QGIS-trac] Re: [Quantum GIS] #3651: Possibility to set rotation constraint for pal label candidate generation (was: label rotation not working as expected)

[Quantum GIS]

#3651: Possibility to set rotation constraint for pal label candidate generation
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   Reporter:  jctull                            |              Owner:  mhugent      
       Type:  enhancement                       |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.7.0
  Component:  Vectors                           |            Version:  Trunk        
   Keywords:  label rotation                    |   Platform_version:               
   Platform:  All                               |           Must_fix:  No           
Status_info:  0                                 |  
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Changes (by mhugent):

  * platform:  OS X => All
  * type:  bug => enhancement


Comment:

 The new labeling has two distinct modes:
 1. fully automatic mode: pal library determines possible positions and
 rotations (depending on placement options set)
 2. fully data defined mode: one candidate position with fixed position and
 optionally rotation is forced

 What you describe would be a way to go with 1. but to specify a rotation.
 This is not totally impossible, but requires enhancements in the candidate
 generation code of the pal library. I'm therefore changing the type of
 this ticket.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/3651#comment:1>
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