`read_point_cloud` from buffer (not filename string)

[sammo2828]

Point cloud files can be loaded using filename, e.g.:

pcd = open3d.io.read_point_cloud("pointcloud.ply")

Is there a way to load from a file that has already been read into a buffer? E.g. something like this:

with open("pointcloud.ply", "b") as f:
   buffer = f.read()
pcd = open3d.io.read_point_cloud(buffer, format="ply")

My use case is the ply files are read from a zip archive so I don't want to save individual ply files to disk so that open3d can load them.

[yxlao]

that's not possible currently, read_point_cloud is bind to open3d::io::ReadPointCloud C++ function, which takes the filename as argument

[hamaney]

that would be cool to have as it boosts the performance!!

[ManuelZ]

+1

[germanros1987]

@sammo2828 in order to make that change in a consistent fashion we would have to update the entire IO module. I personally don't think it's worth the investment, but if you see the value we will happily accept a good PR.

[ruisebastiao]

+1

[lfxx]

Quite need this feature as when we use Open3D in some online stream service,the pcd we receive is buffer not file.Read directly from buffer could save lots of time.

[sgolodetz-vm]

+1