import os, sys
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import numpy as np
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import time
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def file_fliter(folder:str, file_ext:str, sort_format = None):
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files_List = os.listdir(folder)
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target_files = []
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# flitered by file extention name
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for file in files_List:
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if file.split('.')[-1] == file_ext:
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target_files.append(file)
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if sort_format is not None:
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# sort the list by the sort_format
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target_files.sort(key=sort_format)
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return target_files
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def read_ply(path:str,start_line:int = 10):
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count = 0
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ply_list = []
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with open(path,"r") as ply_file:
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# read the line
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for line in ply_file.readlines():
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# strip the str of the header
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if count < start_line:
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pass
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else:
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line_str_list = line.strip().split(' ')
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# convert the str type to float type
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line_float_list = []
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for value in line_str_list:
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line_float_list.append(float(value))
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ply_list.append(line_float_list)
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count += 1
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ply_array = np.array(ply_list,dtype=np.float16)
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return ply_array
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def write_ply(data:np.array,folder:str,name:str):
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file = os.path.join(folder,name+".ply")
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with open (file,'w') as f:
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f.write("ply\n")
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f.write("format ascii 1.0\n")
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f.write("comment write_ply generated\n")
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f.write("element vertex %d\n" % data.shape[0])
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f.write("property float x\n")
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f.write("property float y\n")
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f.write("property float z\n")
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f.write("element face 0\n")
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f.write("property list uchar int vertex_indices\n")
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f.write("end_header\n")
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n_p = 0
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for p in data:
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x = p[0]
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y = p[1]
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z = p[2]
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f.write("{:.5f} {:.5f} {:.5f}\n".format(x, y, z))
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n_p += 1
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print(time.asctime(),f"Frame {name}.ply have been saved with {n_p} points!")
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if __name__ == "__main__":
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ply_array = read_ply('src\\microwave\\demo\\demoData\\2522.ply')
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print(type(ply_array))
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print(ply_array)
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