renaming and reordering ok

BandTableWidget.py

@@ -66,8 +66,8 @@ class BandTableWidget(BASE, WIDGET):
         # for each band
         for band_number in range(nbands):
             band = input_raster.GetRasterBand(band_number + 1)
-            # add band name and number to table
-            bandnumber = 'bande ' + str(band_number+1)
+            # add band number to table
+            bandnumber = str(band_number+1)
             bandname = band.GetDescription()
             self._addBandData(bandnumber, bandname)
     
@@ -139,7 +139,6 @@ class BandTableWidget(BASE, WIDGET):
         return band_names
 
     def setLayer(self, layer):
-        QMessageBox.information(None, self.tr('tralala'), self.tr('coucou'))
         self.layer = layer
         self.updateTable(layer)
         
@@ -163,7 +162,7 @@ class BandTableWidget(BASE, WIDGET):
         allValues = self.cmbLayers.currentLayer().source()
         allValues += ';'
         for b in self.bandNames():
-            allValues += '{0}, {1}, {2};'.format(b[0], b[1], b[2])
+            allValues += '{0},{1},{2};'.format(b[0], b[1], b[2])
         return allValues[:-1]
 
 

merge_rename_bands_algorithm.py

@@ -111,64 +111,70 @@ class MergeAndRenameAlgorithm(QgsProcessingAlgorithm):
         """
 
         # RETRIEVE INPUTS AND OUTPUT
-        band_data = ParameterBandTable.tableValuesAsList(parameters[self.INPUT])
+        input_param = ParameterBandTable.tableValuesAsList(parameters[self.INPUT])
         output_raster_path = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
         
 #        # GETTING USEFUL PARAMETERS
-#        
-#        # number of columns in table is used later on, change it here if necessary
-#        nb_col = 2
-#        # index of column used for band order
-#        index_bandorder = 1
-#        # index of column used for band description
-#        index_banddesc = 0
-#        
-#        # transform band_table in a nested list, with 1 element per band, and name and order of each band
-#        # [['band 1', 1], ['band 2', 2], ['band 3', 3]]
-#        band_table = [band_table[n:n+nb_col] for n in range(0, len(band_table), nb_col)]
-#        # get input raster path
-#        input_raster_path = input_raster.source()
-#        # read raster with gdal
-#        input_raster = gdal.Open(input_raster_path)
-#        
-#        
-#        # REORDERING BANDS
-#        
-#        # get order of bands as a list, i.e. [3,2,1]
-#        band_order = [i[index_bandorder] for i in band_table]
-#        # reordering bands using gdal_translate
-#        kwargs = {
-#                'bandList': band_order
-#                }
-#        output_raster = gdal.Translate(output_raster_path, input_raster_path, **kwargs)
-#        
-#        
-#        # RENAMING BANDS
-#        
+        
+        input_raster = input_param[0]
+        band_data = input_param[1:]
+        
+        # number of rows in table
+        nb_row = len(band_data)
+#        # number of columns in table
+#        nb_col = len(band_data[0].split(','))
+        # index of column used for band order
+        index_bandorder = 0
+        # index of column used for band description
+        index_banddesc = 2
+        
+        # transform band_table in a nested list, with 1 element per band, and name and order of each band
+        # [['band 1', 1], ['band 2', 2], ['band 3', 3]]
+        band_table = [i.split(',') for i in band_data]
+        
+        # getting input raster path
+        input_raster_path = input_raster
+        # read raster with gdal
+        input_raster = gdal.Open(input_raster)
+        
+        
+        # REORDERING BANDS
+        
+        # get order of bands as a list, i.e. [3,2,1]
+        band_order = [i[index_bandorder] for i in band_table]
+        # reordering bands using gdal_translate
+        kwargs = {
+                'bandList': band_order
+                }
+        output_raster = gdal.Translate(output_raster_path, input_raster_path, **kwargs)
+        
+        
+        # RENAMING BANDS
+        
 #        # get number of bands of input raster
 #        nbands = input_raster.RasterCount
-#        # get number of rows in table
-#        nrows = len(band_table)
+        # get number of rows in table
+        nb_row = len(band_table)
 #        # check if band number = row count in band_table
-#        if nbands != nrows:
+#        if nbands != nb_row:
 #            message = 'Number of rows in table is different from number of bands in input raster'
 #            feedback.reportError(QCoreApplication.translate('Rename bands', message))
 #            return{}
-#        
+        
 #        # reorder band table so that bands are in same order as in output raster
 #        sorted_band_table = sorted(band_table, key = lambda x: x[index_bandorder])
-#        
-#        # iterate over each band to set its description using table input
-#        for band_number in range(nbands):
-#            band = output_raster.GetRasterBand(band_number + 1)
-#            band.SetDescription(sorted_band_table[band_number][index_banddesc])
+        
+        # iterate over each band to set its description using table input
+        for band_number in range(nb_row):
+            band = output_raster.GetRasterBand(band_number + 1)
+            band.SetDescription(band_table[band_number][index_banddesc])
             
             
         # RETURNING RESULTS
 
         # Return the results of the algorithm as a dictionary
         #return {self.OUTPUT: output_raster_path}
-        return {'band data' : band_data}
+        return {'input_param' : input_param}
 
     def name(self):
         """