1

I would like to produce an atlas of 5 blocks for 16 variables. So for each atlas I display a layer who represent a variable. For each map in atlas I'm able de set a title with display block name with something like that :

'NDVI ' + "block_name_field"

But I have 16 variables and I don't want to handwrite it. Is code like that possible ?

Active_layer_name + "block_name_field"
  • 1
    Is there a function like @layer_name available? So maybe @layer_name + " block_name_field". Haven't really used Atlas myself so this is just a guess. – Joseph Sep 15 '17 at 11:55
  • I tried it in expression editor. Preview shows atlas layer name and not variable layer. And in my title it finally displays nothing... – Tim C. Sep 15 '17 at 12:02
1

In the plug-in Expressions Plus FR (derived from the original from N. Woodrow) you have a function called NamePathActiveLayer that almost does the job (you have at least file name of active layer ...)

or (better, i suppose) :

write your own expression, go in the expression dialog box, activate the function editor tab and try the following code :

    from qgis.core import *
    from qgis.gui import *
    from qgis.utils import iface

    @qgsfunction(args='auto', group='create_your_own_group')
    def ActiveLayerName(feature, parent):
      layer = iface.activeLayer()
      if layer != None :
      return layer.name()

You will have to save the code and the new function should be available (at qgis restart i think ...)

  • I can't find Expressions Plus FR. I have just N. Woodrow version. Have you more deposits than official deposit ? – Tim C. Sep 15 '17 at 13:11
  • u're right ... not sure the deposit is visible ... – snaileater Sep 15 '17 at 14:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.