exception during merge

[danielhrisca]

Trying to merge 4 test files with the following code:

from asammdf import MDF
from mdfreader import mdf

x = mdf(r'd:\TMP\x.mf4')
for file in [
           r'd:\TMP\x1.mf4',
           r'd:\TMP\x2.mf4',
           r'd:\TMP\x3.mf4']:
    x2 = mdf(file)
    x.mergeMdf(x2)

x.write(r'd:\TMP\merged_mdfreader.mf4')

I get an exception:

Traceback (most recent call last):
  File "D:\WinPython-64bit-3.6.2.0Qt5b3\notebooks\untitled17.py", line 27, in <module>
    x.mergeMdf(x2)
  File "d:\WinPython-64bit-3.6.2.0Qt5b3\python-3.6.2rc1.amd64\lib\site-packages\mdfreader\mdfreader.py", line 1135, in mergeMdf
    raise Exception('Data not resampled')
Exception: Data not resampled

[ratal]

Hi Daniel, This merge method works only for resampled mdf, meaning only one master channel. Otherwise, much more complex to merge, especially if you do not know what raster correspond to what other raster, all groups having same names like 't' for time. So you should do a resample() before merging. There should be a working example in mdfconvert module, mdfreaderui4 or 5.py, on_Convert_clicked()

[danielhrisca]

I expected to work based on the internal structure of the mdf file, without the need to resample.