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Ply格式

「ply」Polygon File Format(多边形文件格式)或Stanford Triangle Format(斯坦福三角形档案)

示例

模型

ply                 
format ascii 1.0   
    //数据保存格式,三类
    //format ascii 1.0
    //format binary_little_endian 1.0
    //format binary_big_endian 1.0
element vertex 8 //元素:顶点 个数为8
property float x    
property float y    
property float z    //顶点格式:依次为x,yz坐标
element edge 6  //元素:边 6条
property int vertex1
property int vertex2
property uchar red  
property uchar green
property uchar blue //边存储格式为: 顶点id 1,2,颜色r,g,b
end_header  //头,以end_header结束
0.194585 0.0202505 -0.654565
0.393574 0.0181872 -0.634588
0.196413 0.220227 -0.652125
0.174584 0.0180056 -0.455581
0.811062 -0.0294865 -0.551833
0.991697 -0.0650619 -0.473697
0.845413 0.167279 -0.541659
0.73238 -0.0252545 -0.368009  //点内容,8个顶点(x,y,z)坐标
0 1 255 0 0
0 2 0 255 0
0 3 0 0 255
4 5 255 0 0
4 6 0 255 0
4 7 0 0 255   //6条边,(id1,id2,r,g,b)

点云

ply
format ascii 1.0
element vertex %(vert_num)
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
end_header