Add log line before the slow processing part with dense data

Author: oseiskar

python/cli/process/process.py

@@ -43,6 +43,8 @@ def interpolate_missing_properties(df_source, df_query, k_nearest=3):
         from scipy.spatial import KDTree
         xyz = list('xyz')
 
+        print('generating a simplified point cloud (this may take a while...)')
+
         tree = KDTree(df_source[xyz].values)
         _, ii = tree.query(df_query[xyz], k=k_nearest)
         n = df_query.shape[0]