Add COPC support

SuperBuild/cmake/External-Untwine.cmake

@@ -9,7 +9,7 @@ ExternalProject_Add(${_proj_name}
   #--Download step--------------
   DOWNLOAD_DIR      ${SB_DOWNLOAD_DIR}
   GIT_REPOSITORY    https://github.com/hobu/untwine/
-  GIT_TAG           20243113fc7e9a3056f4ec727cc1f69202669156
+  GIT_TAG           69c240a7225180f7d8c5bc0eee500ffaf987f81a
   #--Update/Patch step----------
   UPDATE_COMMAND    ""
   #--Configure step-------------

VERSION

@@ -1 +1 @@
-2.8.1
+2.8.2

opendm/config.py

@@ -360,6 +360,12 @@ def config(argv=None, parser=None):
                 default=False,
                 help='Export the georeferenced point cloud in Entwine Point Tile (EPT) format. Default: %(default)s')
 
+    parser.add_argument('--pc-copc',
+                action=StoreTrue,
+                nargs=0,
+                default=False,
+                help='Save the georeferenced point cloud in Cloud Optimized Point Cloud (COPC) format. Default: %(default)s')
+
     parser.add_argument('--pc-filter',
                         metavar='<positive float>',
                         action=StoreValue,

opendm/entwine.py

@@ -39,7 +39,7 @@ def build(input_point_cloud_files, output_path, max_concurrency=8, rerun=False):
             log.ODM_WARNING("Cannot build EPT using entwine (%s), attempting with untwine..." % str(e))
             dir_cleanup()
             build_untwine(input_point_cloud_files, tmpdir, output_path, max_concurrency=max_concurrency)
-        
+
     if os.path.exists(tmpdir):
         shutil.rmtree(tmpdir)
 
@@ -67,3 +67,26 @@ def build_untwine(input_point_cloud_files, tmpdir, output_path, max_concurrency=
 
     # Run untwine
     system.run('untwine --temp_dir "{tmpdir}" {files} --output_dir "{outputdir}"'.format(**kwargs))
+
+def build_copc(input_point_cloud_files, output_file):
+    if len(input_point_cloud_files) == 0:
+        logger.ODM_WARNING("Cannot build COPC, no input files")
+        return
+
+    base_path, ext = os.path.splitext(output_file)
+    tmpdir = io.related_file_path(base_path, postfix="-tmp")
+    if os.path.exists(tmpdir):
+        log.ODM_WARNING("Removing previous directory %s" % tmpdir)
+        shutil.rmtree(tmpdir)
+
+    kwargs = {
+        'tmpdir': tmpdir,
+        'files': "--files " + " ".join(map(double_quote, input_point_cloud_files)),
+        'output': output_file
+    }
+
+    # Run untwine
+    system.run('untwine --temp_dir "{tmpdir}" {files} -o "{output}" --single_file'.format(**kwargs))
+
+    if os.path.exists(tmpdir):
+        shutil.rmtree(tmpdir)

opendm/point_cloud.py

@@ -285,3 +285,14 @@ def post_point_cloud_steps(args, tree, rerun=False):
     if args.pc_ept:
         log.ODM_INFO("Creating Entwine Point Tile output")
         entwine.build([tree.odm_georeferencing_model_laz], tree.entwine_pointcloud, max_concurrency=args.max_concurrency, rerun=rerun)
+
+    # COPC point clouds
+    if args.pc_copc:
+        log.ODM_INFO("Creating Cloud Optimized Point Cloud (COPC)")
+
+        copc_output = io.related_file_path(tree.odm_georeferencing_model_laz, postfix="-copc")
+        entwine.build_copc([tree.odm_georeferencing_model_laz], copc_output)
+        if os.path.exists(copc_output):
+            # Swap
+            os.remove(tree.odm_georeferencing_model_laz)
+            shutil.move(copc_output, tree.odm_georeferencing_model_laz)