pyMdfParser / Blog: Recent posts

Hello,

at the moment I am working on the interpolation feature of pyMdfParser.
With that feature it is possible to perfomr calculations with signals that were measured in different sample times.

I have implemented the following concept:

Added a module mdf_operations with a class MDFOps and an interpolation method "interp".
Interface of "interp": A signal list and a desired interpolation rate.
"interp" determines the latest starting time points and the earliest stop time of all time vectors of the signals given in the signal list.... read more

Hello,

I was busy with some other stuff so I could not add new content the last weeks.

With 0.0.6 I have added the "more fancy" info block display and some smaller improvements in the documentation.

I think the next big step will be the interpolation to one time channel.

Concept:

Deal with different start times

It can be that there are completly different start times in the different time vectors.
Worst case is if you have some data acquisition that depends e.g. on a running engine mixed with time triggered signals and you have started the measurement bfore starting the engine.... read more

27.03.2013

The problems with the documentation and running the smoe_test from IDLE are solved.
It was just a wrong import operation ...

I have fixed the problem and added a documentation in doc\html.zip

Next Steps:
- work on documentation (class hierachy diagram)
- add missing conversion types
- add some features like
- interpolation to one time channel
- get info block in a more fancy way
- ....
- test, test, test... read more

24.03.2013
At the moment I am working on a documentation for pyMdfParser.
I use sphinx and follow the numpy/scipy regulations for documentation.
At the moment I have problems with autodoc and importing mdf_parser for automodule docs.
As soon as the problem is fixed I will add the documentation to the release files ...
It seems that there is a general problem with importing pyMdfParser modules.

I must admit that I have tested my stuff only in PyDev environment so far and never checked if it can be used with an other environment e.g. with IDLE.
I have to fix this first and then come back to the documentation ...

Hello,

I have decided to write down all my steps and problems of the development in a dev blog
So perhaps if someone wants to join the status of the project should be clear ...

Hello together,

I have added the first draft of a parser for mdf files.
I am looking for people to join ...

The aim is, to implement an open source parser in order to use it in Python based applications
which work on mdf measurement data.

My problems at the moment:
* you only get the mdf 3.3 specification for free in the internet (see Vector or ETAS homepages). It seems there is a new standard (according to the test installation of CANape, where you can select mdf 4 format)
* mdf 4 spec is not freely available so we start with mdf 3.3 ...
* real word test data is a problem --> if someone could provide such data ...... read more