move to lanczos from deprecated antialias setting

Author: ramSeraph

topo_map_processor/tools/retile.py

@@ -183,7 +183,7 @@ def create_base_tiles(self, sheets, max_zoom):
         print('start creating base tiles')
         cmd = [
             'gdal2tiles.py',
-            '-r', 'antialias',
+            '-r', 'lanczos',
             '--verbose',
             '-w', 'none',
             # N.B. if transperent tiles are excluded, the old data might show through
@@ -210,7 +210,7 @@ def create_upper_tiles(self, z, tiles_to_create):
             # N.B. if transperent tiles are excluded, the old data might show through
             #'exclude_transparent': True,
             'profile': 'mercator',
-            'resampling': 'antialias',
+            'resampling': 'lanczos',
             'tiledriver': tile_driver,
         }
         options_dict.update(self.get_tiler_options())

topo_map_processor/tools/tile.py

@@ -136,7 +136,7 @@ def cli():
     #os.environ['GTIFF_VIRTUAL_MEM_IO'] = 'TRUE'
     cmd = [
         'gdal2tiles.py',
-        '-r', 'antialias',
+        '-r', 'lanczos',
         '--verbose',
         '--exclude', 
         '--resume',