Implementing sorted multi-profiles

metadata.txt

@@ -3,7 +3,7 @@ name=qProf
 description=Calculates height and slope profiles from DEM and GPX files, and plots geological attitudes and traces on profiles.
 about=qProf is a plugin for the generation of topographic and geological profiles. Topography can be extracted from DEM or GPX files. Geological data, such as stratification attitude and geological traces, can be projected on the profile. Intersections between geological outcrops or faults can be determined.
 category=Raster
-version=0.4.0
+version=0.4.1
 qgisMinimumVersion=3.0
 icon=icons/qprof.png
 author=Mauro Alberti, Marco Zanieri
@@ -15,6 +15,7 @@ repository=https://github.com/mauroalberti/qProf
 experimental=False
 deprecated=False
 changelog=
+  0.4.1 : - implemented sorting of profiles in multiprofile case based on field value
   0.4.0 : - ported to QGIS 3
   0.3.4 : - substitution of geosurf with gsf and other minor internal libraries; implementation of multiple topographic profiles
   0.3.3 : - removed minor bug related to profile line definition

qProf_QWidget.py

@@ -505,7 +505,11 @@ def line_layer_params(dialog):
 
                 return line_layer, multiple_profiles, order_field_ndx
 
-            #multiple_profiles = self.qrbtLineIsMultiProfile.isChecked()
+            def sort_profile(profile_lines, order_ids):
+
+                zipped_profs = zip(order_ids, profile_lines)
+                return map(lambda v: v[1], sorted(zipped_profs, key=lambda v: v[0]))
+
             current_line_layers = loaded_line_layers()
 
             if len(current_line_layers) == 0:
@@ -537,7 +541,8 @@ def line_layer_params(dialog):
 
             processed_lines = []
             if multiple_profiles:
-                for orig_line in profile_orig_lines:
+                sorted_profiles = sort_profile(profile_orig_lines, mergeorder_ids)
+                for orig_line in sorted_profiles:
                     processed_lines.append(merge_line(orig_line))
             else:
                 processed_lines.append(merge_lines(profile_orig_lines, mergeorder_ids))