[Qgis-developer] Problem with a plugin to select polylines

[boesiii]

Hello All,

I am starting to develop my own plugin by starting and following
instructions at www.qgisworkshop.org but the plugin does not work when the
data is a polyline.  Below is part of the plugin that deals with feature
selection.  What do I need to change so that it will select polylines?

def selectFeature(self, point, button):
       QMessageBox.information( self.iface.mainWindow(),"Info", "in
selectFeature function" )
       # setup the provider select to filter results based on a rectangle
       pntGeom = QgsGeometry.fromPoint(point)
       # scale-dependent buffer of 2 pixels-worth of map units
       pntBuff = pntGeom.buffer( (self.canvas.mapUnitsPerPixel() * 1),0)
       rect = pntBuff.boundingBox()
       # get currentLayer and dataProvider
       cLayer = self.canvas.currentLayer()
       selectList = []
       if cLayer:
               provider = cLayer.dataProvider()
               feat = QgsFeature()
               # create the select statement
               provider.select([],rect) # the arguments mean no attributes
returned, and do a bbox filter with our buffered rectangle to limit the
amount of features
               while provider.nextFeature(feat):
                       # if the feat geom returned from the selection
intersects our point then put it in a list
                       if feat.geometry().intersects(pntGeom):
                               selectList.append(feat.id())

               # make the actual selection
               cLayer.setSelectedFeatures(selectList)
       else:
               QMessageBox.information( self.iface.mainWindow(),"Info", "No
layer currently selected in TOC" )

Thanks for the help,

Ed




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