enhance the Color Space Explorer dialog with predefined RGB band combinations from the GEE Data Catalog plugin

[Andreas Janz]

Implement spectral RGB combinations for Landsat/Sentinel-2 defined here: https://github.com/sandroklippel/qgis_gee_data_catalog/blob/master/datasets.py

Use this list with S2 band names.

'Natural color (B4-B3-B2)':{
    'bands':['B4', 'B3', 'B2'],
    'scale':10,
    'suffix':'_r4g3b2'},
'False color (B4-B8-B3)':{
    'bands':['B4', 'B8', 'B3'],
    'scale':10,
    'suffix':'_r4g8b3'},
'Color infrared (B8-B4-B3)':{
    'bands':['B8', 'B4', 'B3'],
    'scale':10,
    'suffix':'_r8g4b3'},
'Shortwave infrared 1 (B12-B8-B4)':{
    'bands':['B12', 'B8', 'B4'],
    'scale':10,
    'suffix':'_r12g8b4'},
'Shortwave infrared 2 (B12-B8A-B4)':{
    'bands':['B12', 'B8A', 'B4'],
    'scale':10,
    'suffix':'_r12g8Ab4'},
'Shortwave infrared 3 (B12-B8A-B2)':{
    'bands':['B12', 'B8A', 'B2'],
    'scale':10,
    'suffix':'_r12g8Ab2'},
'Agriculture 1 (B11-B8-B2)':{
    'bands':['B11', 'B8', 'B2'],
    'scale':10,
    'suffix':'_r11g8b2'},
'Agriculture 2 (B11-B8A-B2)':{
    'bands':['B11', 'B8A', 'B2'],
    'scale':10,
    'suffix':'_r11g8Ab2'},
'Geology (B12-B11-B2)':{
    'bands':['B12', 'B11', 'B2'],
    'scale':10,
    'suffix':'_r12g11b2'},
'Bathymetric (B4-B3-B1)':{
    'bands':['B4', 'B3', 'B1'],
    'scale':10,
    'suffix':'_r4g3b1'},
'False color urban (B12-B11-B4)':{
    'bands':['B12', 'B11', 'B4'],
    'scale':10,
    'suffix':'_r12g11b4'},
'Atmospheric penetration / Soil (B12-B11-B8A)':{
    'bands':['B12', 'B11', 'B8A'],
    'scale':10,
    'suffix':'_r12g11b8A'},
'Healthy vegetation (B8-B11-B2)':{
    'bands':['B8', 'B11', 'B2'],
    'scale':10,
    'suffix':'_r8g11b2'},
'Vegetation analysis 1 (B8-B11-B4)':{
    'bands':['B8', 'B11', 'B4'],
    'scale':10,
    'suffix':'_r8g11b4'},
'Vegetation analysis 2 (B11-B8-B4)':{
    'bands':['B11', 'B8', 'B4'],
    'scale':10,
    'suffix':'_r11g8b4'},
'Forestry / Recent harvest areas (B12-B8-B3)':{
    'bands':['B12', 'B8', 'B3'],
    'scale':10,
    'suffix':'_r12g8b3'},

‌

[Andreas Janz]

Done

‌

[Agustin Lobo]

Please let the user define his/her own using a configuration file.

Also, actual wavelengths are not always in the band names, thus they should be below the composite name in the respective button,

[Agustin Lobo]

What is the “Color Space Gradient Step Size”?

‌

[Andreas Janz]

Click on “Random delta” and then “Play”. Now the renderer bands are updated in each frame by the individual deltas. If you want so: we are now walking along a “Color Space Gradient” with given “Step Size”.

[Agustin Lobo]

How do I stop it once I click on Play? Even closing the window does not stop the sequence.

Otherwise, excellent visualization tools (both the Color Space Explorer and the “Waveband Locator”), congrats.

[Andreas Janz]

Even closing the window does not stop the sequence.

Yes, this is a bug. Animation should stop after closing the window.

How do I stop it once I click on Play?

Click the Play button again

Somehow the Play/Stop icons disapeared.