rasterlayerstylingpanel AttributeError: 'QgsSingleBandGrayRenderer' object has no attribute 'redContrastEnhancement'

[jakimowb]

This error occurred when trying to visualize an in-memory NDVI 1-band raster.

An error has occurred while executing Python code: 

AttributeError: 'QgsSingleBandGrayRenderer' object has no attribute 'redContrastEnhancement'. Did you mean: 'setContrastEnhancement'? 
Traceback (most recent call last):
  File "/home/jakimowb/.local/share/QGIS/QGIS3/profiles/EnMAP-Box/python/plugins/enmapboxplugin/enmapbox/coreapps/rasterlayerstylingapp/rasterlayerstylingpanel.py", line 636, in updateMinMax
    self.updateRenderer()
  File "/home/jakimowb/.local/share/QGIS/QGIS3/profiles/EnMAP-Box/python/plugins/enmapboxplugin/enmapbox/coreapps/rasterlayerstylingapp/rasterlayerstylingpanel.py", line 646, in updateRenderer
    (self.mRedBand, renderer.redContrastEnhancement(), renderer.setRedBand),
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'QgsSingleBandGrayRenderer' object has no attribute 'redContrastEnhancement'. Did you mean: 'setContrastEnhancement'?

[janzandr]

Can't reproduce it. I have created the NDVI band and styled a Gray band. Works fine for me.

Please provide steps to reproduce the issue.

[janzandr]

@jakimowb please provide more feedback for reproducing the problem

[jakimowb]

After a while I found the steps to reproduce the error:

1. Open Testdata

2. Open Spectral Index Explorer, select enmap_potsdam as source layer

   • this needs some time and shows me an application does not respond warning
     

   • would be good if the spectral index explorer already selects the raster that is selected in the layer tree

3. add in-memory NDVI layer

   • is slow as well and might show again a app-not-responding warning

4. Select NDVI layer in layer tree and open the raster layer styling panel (RLSP) for

5. RLSP: Select the Pseudo color renderer tab

6. RLSP: Set Min / Max Value Settings to cumulative cut

7. RLSP: select the EnMAP Layer inside the layer combobox

Traceback (most recent call last):
  File "/home/jakimowb/repositories/enmap-box/enmapbox/coreapps/rasterlayerstylingapp/rasterlayerstylingpanel.py", line 636, in updateMinMax
    self.updateRenderer()
  File "/home/jakimowb/repositories/enmap-box/enmapbox/coreapps/rasterlayerstylingapp/rasterlayerstylingpanel.py", line 658, in updateRenderer
    ce = renderer.contrastEnhancement()
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'QgsMultiBandColorRenderer' object has no attribute 'contrastEnhancement'. Did you mean: 'redContrastEnhancement'?