From 13530d0ad2c32608d0b46a5c16ad4ac0c25b59f1 Mon Sep 17 00:00:00 2001
From: wu_xinjun <bent20140204@outlook.com>
Date: 星期五, 13 五月 2022 14:08:50 +0800
Subject: [PATCH] support for 6 columns ply
---
src/utils/tools.py | 58 ++++++++++++++++++++++++++++++++++++++++++++++------------
1 files changed, 46 insertions(+), 12 deletions(-)
diff --git a/src/utils/tools.py b/src/utils/tools.py
index ee2806a..8f9fa00 100644
--- a/src/utils/tools.py
+++ b/src/utils/tools.py
@@ -20,28 +20,62 @@
return target_files
-def read_ply(path:str,start_line:int = 10):
- ply_array = np.load(path,skiprows=start_line)
+def get_skip_rows(path):
+ with open(path,"r") as ply_file:
+ count = 0
+ # read the line
+ for line in ply_file.readlines():
+ # strip the str of the header
+ flag = line.strip()
+ if flag == "end_header":
+ return count + 1
+ else:
+ if count >= 50:
+ return None
+ count += 1
+ return None
+
+def read_ply(path:str):
+ start_line = get_skip_rows(path)
+ if start_line is not None:
+ ply_array = np.loadtxt(path,skiprows=start_line)
+ else:
+ ply_array = None
return ply_array
def write_ply(data:np.array,folder:str,name:str):
file = os.path.join(folder,name+".ply")
n_p = data.shape[0]
- header = ["ply\nformat ascii 1.0\n",
- "comment write_ply generated\n",
- f"element vertex {n_p}\n",
- "property float x\n",
- "property float y\n",
- "property float z\n",
- "element face 0\n",
- "property list uchar int vertex_indices\n",
- "end_header"]
+ n_cols = data.shape[1]
+
+ if n_cols == 3:
+ header = ["ply\nformat ascii 1.0\n",
+ "comment write_ply generated\n",
+ f"element vertex {n_p}\n",
+ "property float x\n",
+ "property float y\n",
+ "property float z\n",
+ "end_header"]
+ fmt = '%.6f','%.6f','%.6f'
+
+ elif n_cols == 6:
+ header = ["ply\nformat ascii 1.0\n",
+ "comment write_ply generated\n",
+ f"element vertex {n_p}\n",
+ "property float x\n",
+ "property float y\n",
+ "property float z\n",
+ "property uchar red\n",
+ "property uchar green\n",
+ "property uchar blue\n",
+ "end_header"]
+ fmt = '%.6f','%.6f','%.6f','%d','%d','%d'
np.savetxt(file,data,
delimiter=" ",
header="".join(header),
comments="",
- fmt='%.6f')
+ fmt=fmt)
print(f"{time.asctime()} {name}.ply have been saved with {n_p} points!")
--
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