Initialize vtk DataSet from clientfile

[bigfooted]

Hi! I am reading a .vtm file from disk and then visualizing this. I used to do:

reader = vtk.vtkXMLMultiBlockDataReader()
reader.SetFileName(filename)
reader.Update()
...
mb = reader.GetOutput()

But now I want to switch to a server setup, where the file is uploaded, so I am using the setup from the howdoi/00_upload example and do:
file = ClientFile(file_upload)

and now I am confused. Is there a way to directly update the variable mb with the data inside file?

[jourdain]

So the ClientFile is actually only a set of buffers in memory. You will need to dump it to disk and point your VTK reader to it so it can produce a new multiblock. Also if I'm not mistaken, a vtm is a meta file which require other files on the side. So uploading a vtm in itself won't be enough unless you now where is was located and the server already has access to the other files.

HTH

[jourdain]

If it is a true upload (meaning server is not collocated with the client [localhost]), there is no way. This is a limitation of the web API. Chrome has some experimental support but I don't think it went thru to the std and it won't.

If not, you can use something like an embedded file browser (I think I posted a picture of it in another discussion but can't find it) so you can get the path and don't move the data at all.

[bigfooted]

Thanks! I think you mean this one:
#294

The .vtm file is basically a file that contains a list of files. Maybe it is possible to extract these filenames and parse it to the uploader?

[bigfooted]

or else I can just zip the vtm files, upload that and unzip it on the server

[jourdain]

The zip is probably the only approach

[jourdain]

unless you can figure out another format within a single file.