Upload merge_fragments.py

merge_fragments.py

@@ -1,6 +1,7 @@
 import os
 import glob
 import sys
+import shutil
 import trimesh
 
 # Helper script for optional merging
@@ -9,7 +10,7 @@ import trimesh
 #
 # Call this as 
 #
-# 	python3 merge_fragments.py [outfilepath]"
+# 	python3 merge_fragments.py [outfilepath] / [dirpath]"
 #
 # where outfilepath is the full path to the mesh (model_x_[N].ply)
 # x is either b for the broken mesh or r for the repair mesh
@@ -21,36 +22,69 @@ import trimesh
 # i.e., all files of the form model_x_[N]_fragment_[M].ply, where M = {0,1,2...}
 # and merges them using the 'trimesh' package
 #
-# Example: 
+# Examples (assuming merge_fragments.py is in root folder containing all class folders)
+#
+# For a single file:
 #	python3 merge_fragments.py ./03593526/e4c871d1d5e3c49844b2fa2cac0778f5/models/model_b_1.ply
+# For all models in an object folder: 
+#	python3 merge_fragments.py ./03593526/e4c871d1d5e3c49844b2fa2cac0778f5
+# For all models in a class: 
+#	python3 merge_fragments.py ./03593526
+# For all models:
+#	python3 merge_fragments.py ./
+# 
 # 
 # THE FOLLOWING PACKAGE MUST BE PRE-INSTALLED PRIOR TO USING THIS SCRIPT: trimesh
 #
 # Author: Natasha Kholgade Banerjee
 
-def merge_fragments_runner( outfilepath ):
+def merge_fragments_runner( outfilepath, show_output=True ):
 	
 	# Search for all fragments
 	fragmentfiles = glob.glob( outfilepath.replace( ".ply", "_fragment_*.ply" ) )
 	if not fragmentfiles:
-		print( f"No fragments found for {outfilepath}" )
+		if show_output:
+			print( f"No fragments found for {outfilepath}" )
 	else:
-		print( "Merging following fragment files found for {outfilepath}:" )
-		print( fragmentfiles )
+		if show_output:
+			print( "Merging following fragment files found for {outfilepath}:" )
+			print( fragmentfiles )
 		
-		# Load in all the fragment files as trimesh meshes
-		meshes = [trimesh.load( fragmentfile ) for fragmentfile in fragmentfiles]
+		if len( fragmentfiles ) == 1:
+			# If only one fragment file, simply copy it over
+			shutil.copy2( fragmentfiles[0], outfilepath )
+			
+		else:		
+			# Load in all the fragment files as trimesh meshes
+			meshes = [trimesh.load( fragmentfile ) for fragmentfile in fragmentfiles]
 		
-		# Concatenate all meshes into a single mesh using the concatenate function in trimesh
-		mesh = trimesh.util.concatenate( meshes )
+			# Concatenate all meshes into a single mesh using the concatenate function in trimesh
+			mesh = trimesh.util.concatenate( meshes )
 		
-		# Export the concatenated mesh to {outfilepath}
-		mesh.export( outfilepath )
+			# Export the concatenated mesh to {outfilepath}
+			mesh.export( outfilepath )
 
 if __name__ == "__main__":
 	if len(sys.argv) != 2:
-		print("Usage: python3 merge_fragments.py [outfilepath]")
-		print( "Example: python3 merge_fragments.py ./03593526/e4c871d1d5e3c49844b2fa2cac0778f5/models/model_b_1.ply")
+		print("Usage: python3 merge_fragments.py [outfilepath] / [dirpath]")
+		print( "File Example: python3 merge_fragments.py ./03593526/e4c871d1d5e3c49844b2fa2cac0778f5/models/model_b_1.ply")
+		print( "Directory Examples (LAST TWO ARE TIME-INTENSIVE):" )
+		print( "For all models in an object folder: python3 merge_fragments.py ./03593526/e4c871d1d5e3c49844b2fa2cac0778f5" )
+		print( "For all models in a class: python3 merge_fragments.py ./03593526" )
+		print( "For all models: python3 merge_fragments.py ./" )
 	else:
-		outfilepath = sys.argv[1]
-		merge_fragments_runner( outfilepath )
+		file_or_dir_path = sys.argv[1]
+		if os.path.isfile( file_or_dir_path ):
+			print( "Provided single file" )
+			merge_fragments_runner( file_or_dir_path )
+		else:
+			print( "Provided directory" )
+			N_max = 10			
+			for root, subdirs, files in os.walk( file_or_dir_path ):
+				for i in range( 0, N_max ):
+					for suffix in ["b", "r"]:
+						path = os.path.join( root, f"model_{suffix}_{i}.ply" )
+						path_fragment = os.path.join( root, f"model_{suffix}_{i}_fragment_0.ply" )
+						if os.path.isfile( path_fragment ):
+							merge_fragments_runner( path )
+