Fixes

• update GUI to match the new API

Changes

• added source argument to get method

  • in case of multiple channel name occurrence it allow to specify the wanted source
  • if provided, it must match a channel's source name otherwise an exception is raised

Remove README.rst to avoid errors in conda-forge

Removes extra (unneeded) folders from the install package

Fixes

• documentation fixes
• many fixes

Changes

• backwards incompaltible API clean-up (some arguments have been renamed for consistency)
• refactoring of invalidation bits handling
• allow to instantiate MDF from file-like objects
• add use_display_names keyword only argument to MDF classes. For MDF4, if False, it can speed up the file parsing considerably.
• MDF scramble static method: scramble text blocks and keep original file structure (useful for privacy concerns when sending mdf files for debug purpose)

Changes

• mdf v3 code refactoring
• many documentation updates
• gui: improve advanced search results

Fixes

• lib: add logging NullHandler to avoid warning when no logging handler was set for 'asammdf'
• fix for issue #67
• fix for issue #68

Changes

• lib: add 'sync' argument to merge and concatenate methods
• gui: use ui without generated py files
• GUI can run with PyQt4 as well now
• gui: change line style on the current plot
• gui: make sure the cursor remains visible when moved using the left and right keys

Fixes

• fix setup.py to properly include files needed for GUI
• lib: fix MDF3 error when the file header had no comment

Fixes

• fix typo in GUI for range

Changes

• gui:
  • line style option
  • hex, bin adn physical display mode for integer channels
  • cursor, range, statistics
  • save and load channel statistics
  • see docs for complete functionality (http://asammdf.readthedocs.io/en/master/gui.html)
• update documentation for new demo example and GUI tool

Fixes

• lib: use logging with the logger name 'asammdf' (issue #63)
• lib: fix MDF3 error when chanining operations (cut.convert.resample)
• lib: fix cut when start is higher than the last timestamp
• fix for issue #66

Changes

• new graphical user interface :

  • visualize channels
  • exposes library functionality for single files (convert, export, cut, filter, resample) and multiple files (concatenate, stack)
  • requires pyqtgraph

• added mf4 demo file creation example
• added Matlab v7.3 export
• added iter_get method
• added configuration option to return single bit channels as bool
• preserve bit count for unsigned channels with bit count <= 4
• lib: for plain CAN bus logging add channels from database when saving

Fixes

• fix cutting a signal between two consecutive samples
• fix Signal cut method
• lib: fix wrong bytes import for python 3 in v4_blocks.py
• lib: added metadata method to mdfv4 Channel, Conversion and Source blocks
• handle HLBLOCK in channel data block
• fix for VLSD BYTE_ARRAY channel: the values will be 0 padded to be compatible with numpy ndarray
• fix error in stack method: if output file >= 4.00 and input file was <4.00 an contained string channels
• fixes for mdf v4 channel conversion from keys

Fixes

• fixes #58
• fixes for VLSD BYTE_ARRAY channels
• enable bus logging handling only for CAN logging
• reset the plain bus event flag as well in case of unsupported bus logging
• improve handling of CAN bus logging (extended CAN id, not utf-8 database files)

Changes

• removed __slots__
• do not expose MDF2, MDF3 and MDF4 classes on asammdf import to encourage the use of MDF class

IMPORTANT

• the current stable release of canmatrix (0.6.0) has bugs; it is necessary to install the latest development release until a new stable release is published

New features

• added support for CAN bus logging measurements
• avoid TXBLOCK, CCBLOCK and SIBLOCK duplication on save
• new stack method creates a new file with all the channels from the given measurements
• append boolean arrays as single bit channels
• handle measurement start time
• use measurement start time when concatenating files
• added pandas export option

Fixes

• fix mat export
• fix matlab compatible names in export
• fix KeyError for ALGEBRAIC channel conversion
• fixes issue #45, #50, #54, #55 and #56
• fix mdf 3 errors in merge, concatenate in case of string channels without samples
• fix for Signal interp if the new axis is empty
• fix export in case of bytearray channels
• fix nested structure composition
• fix error in plot method

Changes

• use XML parsing for comments
• merge renamed to concatenate
• validate file magic header for MDF files
• do not use splitext in .mat export
• validate memory and version arguments used throughout the code base
• added new kargs to export method
• read and transfer event blocks
• move channel conversion and source in channel
• streamline save methods
• remove code duplication in append method
• use channel and group index for structure composition dependencies

Changes

• changed license from GPLv3 to LGPLv3
• handle VLSD with CG storage

Fixes

• fix excel export option
• fix csv export option - use default delimiter ","

Changes

• handle channel conversions that exceed maxim block size for mdf version 3
• prepare for conda-forge compliance

Changes

• optimizations for string channels
• optimize mdf version 4 RTAB conversion
• support CANape specific partial conversion for mdf version 3
• motorola byte order not supported by mdf version < 3.10

Fixes

• fix append for memory="minimum"
• fix RTABX for mdf version 3
• fix value range to text conversion for mdf version 3
• fix bench script for Python 2.7

Changes

• the major change for this release is the implementation of partial conversions for mdf version 4
• Signal object now hold a real channel conversion object in the conversion attribute
• ChannelConversion object now have a convert method that will apply the conversion rule on a given array
  • method physical of Signal objects relies now on the convert method

Changes

• keep master channel name and sync type

Fixes

• fix error in get method when record is not byte aligned (a line was erroneously removed in release 3.0.2)

Fixes

• fix error for big endian types and not byte aligned records

Fixes

• fix mdf3 _prepare_record in case of channels with addition byte offset
• fix algebraic conversion
• improve string channel handling
• fix csv export
• fix appending groups with no samples
• fix cut method when the interval is not found in the measurement
• fix for get method in case of channel with no samples
• fix mdf version3 byte array
• fix mdf version 3 saving of groups without samples with options "minimum" and "low"
• added "physical" method to Signal class
• fix handling of LE strings
• fix appending of CANopen types
• fix handling of channel arrays

The major change for release 3.0.0 is the introduction of chunked group samples access. This enables working with large (GB size files) or atypical files (single group and thousands of channels).

Changes

• chunked data access
• configure package level function was removed
• added configure methods to MDFx classes to configure read and write fragment size
• splitting data on save for mdf version 4 is enabled by default

Fixes

• multiple fixes related to creating ChannelConversion objects
• fix handling of additional byte offset for mdf version 3 channels

Fixes

• fix handling of signed inter channels for not byte aligned records (thanks to Jack)

There were a lot of fixes since release 2.8.1 and development for 3.0.0 will still take some time I've decide to make this bugfix release.

Many thanks to all who have contributed to this release!

Changes

• continuous integration using Travis CI
• unified code to handle mdf versions 2 and 3
• option to get raw channel data using the get method
• asserts to validate proper block ID read from files
• allow passing MDF instances to the merge method, alongside string file names
• specify channels by name or by (name, group index, channel index) in the filter and select methods
• added iter, len, contains and whereis methods to MDF class
• try to use chardet if installed in case of incorrect string encoding

Fixes

• Use numpy.where for signed non-byte-sized integers
• fix rational conversion bug in mdf versions 2 and 3
• fix error in saving mdf version 4 RTABX channels
• fix saving of channel composition channels
• fix get error for generated MDF files (result of merge, filter, cut)
• fix error when filtering contains a channel composition and memory=='minimum'
• fix for python 2 unsorted file
• fix compacting of integers on save
• fix save methods
• mdf version 2 and 3 compliance fixes
• fix appending of text conversion with empty strings in mdf version 4
• fix mdf version 4 text block when source string is empty
• fix error in mat export
• fix error when appending signals with big endian byte order
• fix error in case of invalidation bytes
• fix handling of file names in save method

Changes

• continuous integration with Travis CI (thank to Mihai)
• initial test (thank to Mihai)
• avoid unnecessary duplication of channels when filtering measurements with channel compositions

Fixes

• fixes for channel composition in mdf version 4 (thanks to Julien Grawe)
• multiple documentation fixes (thanks to Mihai)
• multiple fixes for mdf version 2 files

Changes

• support MDF version 2.14
• add new resample method to MDF
• try to avoid MemoryError for append on 32 bit Python
• add get_channel_comment and get_channel_unit methods
• add save overwrite as configurable option
• added possibility to return pandas DataFrame to select method
• pandas is now a required dependency

Fixes

• use data block size equal to multiple of record size when splitting data blocks in mdf version 4 save
• fix default values for memory argument in MDF methods
• fix incompatible plot title in Signal
• handle backslash in channel names
• fix typo in usage example
• fix iter_to_pandas error
• fix and improve info methods

Fixes

• fix missing attribute error in Signal class when plotting surface (map) signals

API change

• load_measure_data argument was replaced by memory argument:
  • load_measured_data=True ⇔ memory="full"
  • load_measured_data=False ⇔ memory="low"
  • memory="minimum" is new and will use the least possible amount of RAM (see http://asammdf.readthedocs.io/en/latest/benchmarks.html for benchmark results)

Fixes

• fix errors in save method
• fix errors in merge method
• fix error in cut method for channel groups with no cycles
• fix mdf 4 TextBlock 8byte alignment
• fix wrong link to sample reduction block in ChannelGroup for mdf 4
• fix append and get in case of mdf 4 TTAB conversions
• fix error in case of mdf 4 TTRANS conversion

Fixes

• fix error in MDF3 save method
• fix select method to return the signals in the same order as the channels given
• fix get method when channel group cycles number is 0

Changes

• added select generator method to MDF
• added config pacakge level function to handle all asammdf configurations
• use data list and split data block when saving (configurable)

Fixes

• fix mdf v3 POLY Conversion
• fix mdf v4 DataList for Python 2
• PEP8 improvements

Changes

• big performance boost for convert, cut, export, filter, merge and iter_to_pandas when load_measured_data=True

Fixes

• fix incomplete implementation of mdf version 4 DLBLOCK

Changes

• allow compacting of signed integers when appending
  • use the package function enable_integer_compacting
• avoid unnecessary computation for polynomial conversions
• add MLSD channel support
• improve plotting of maps and update Signal usage example
• moved __version__ to version.py

Fixes

• fix errors in HDF5 export
• fix error in get for singed integers of nonstandard size
• fix mask error for nonstandard integers
• fix error in MDF4 get method when channel type was virtual master