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<p class="MsoNormal">Hi All<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I see that the version of QgsFeatureRendererV2.startRender taking a QgsVectorLayer as a second parameter is deprecated in favour of a version taking a field list.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As yet this has not (as far as I can see) been applied to SIP and python, presumably because the name cannot be overloaded in python. At the moment this is good for me! I need to get information about the layer in order to implement
a custom renderer. However this will not be available in the future, which will be a problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In particular I want to get the layer CRS in order to determine the relationship between true north and projection north, so that I can apply this rotation to the symbol. It is not clear to me where I can get this from once the deprecated
implementation of startRender is removed. Possibly this could be added to the QGS render context? I can access coordinate transformations there, but I don't see that as a guaranteed API for getting the source CRS. Any suggestions?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Chris Crook<o:p></o:p></p>
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