[Gvsig_english] How to import a legend file by a python script

[Jose Manuel Vivó (Chema)]

Hi Antonio:

The method 'VectorialUniqueValueLegend' recive an instance of 
'XMLEntity' (com.iver.utiles.XMLEntity) and not a string.

Normally this kind of errors prints a trace in the java console.


You can try to load a legend from a file using this function:

def loadLeyendFromFile(pathToFile):
  # imports 
  from java.io import InputStreamReader, FileInputStream, File

  from com.iver.utiles.xmlEntity.generate import XmlTag

  LegendFactory = 
gvSIG.classForName("com.iver.cit.gvsig.fmap.rendering.LegendFactory")

  # code
  reader = InputStreamReader( FileInputStream(File(pathToFile)),"UTF-8")

  xml = XmlTag.unmarshal(reader)

  return LegendFactory.createFromXML(xml)



Good Luck

Chema.


El Sábado 24 Marzo 2007 13:17, Antonio Falciano escribió:
> Hi list,
>  I'm trying to import a legend file and then assign to a vectorial layer by
> a python script:
>
>      [cut]
>
>      # Add theme to the mapContext layer list of the view
>      mapContext.getLayers().addLayer(myLayer)
>     
>      # Set theme legend file
>     
> myLegendFileName=os.path.join(gvSIG.getScriptsDirectory(),"..","..","myExte
>nsion","myLegendFile.gvl")
> myLegend=gvSIG.classForName("com.iver.cit.gvsig.fmap.rendering.VectorialUni
>queValueLegend") myLegend.setXMLEntity(myLegendFileName)
>      myLayer.setLegend(myLegend)
>      #myLayer.setXMLEntity(myLegendFileName)
>         
>      # Refresh the mapContext
>      mapContext.invalidate()
>
>  ...but I obtain only my layer with a default single symbol legend. Where
> am I wrong? I'm using gvSIG 1.0.1 with both JCRS and Piloto Raster
> extensions not active.
>
>  Best regards,
>  Antonio Falciano
>  freelancer engineer
>  intern at Regional Rivers Authority of Basilicata, Italy

-- 
=============
Jose Manuel Vivó (Chema)
Equipo de gvSIG

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