.. highlightlang:: us

.. _what's-new-in-uniplot-4.2.5:

What's New in UniPlot 4.2.5
===========================

This page describes the changes made to UniPlot 4.2.5 since version 4.2.4.

New Features
------------

* MDF-Files (INCA): The display identifiers can be used as a channel names
  (see :ref:`import-of-mdf-files`). The option can be set in the
  **Tools=>MDF Configuration** dialog box if the MDF addin is loaded.

New UniScript Functions
-----------------------

None.

Modified UniScript Functions
----------------------------

.. us.makeindex   Changed425, Changed Functions in UniPlot 4.2.5

.. include:: ../ftab/Changed425.ftab

Bug Fixes
---------

The following bugs have been fixed:

* (ID882): :ref:`poly_triangulate` had two errors. 1.) For certain distributed
  data the function caused a memory access violation, for example
  ``poly_triangulate([0,0,1,1],[0,1,0,1])``. 2.) The error handling 
  was different than described in the documentation. In case of an error
  the function returns a string vector with two elements. The first element
  is the error id and the second element the error text.
  (This bug was incorrectly marked as fixed in UniPlot 4.2.4)

* (ID900): The :ref:`AppQuit` function had an error. UniPlot goes into an
  infinite loop when the function is invoked and UniPlot hangs.

* (ID902): Debug-Tooltip: If the cursor was placed while debugging on a
  real variable with exactly 40 rows and 1 column, the debugger would hang and
  cause an endless loop.

* (ID903): Load 3D-Hull: If the third column was invalid the command failed
  without an error message. In UniPlot 4.2.5 an error message will be displayed
  and all values will be set to "m".

* (ID917): The :ref:`obj_save` function did not save variant matrices with
  strings correctly. Example: In the following code::

     o = [.a = [1, "2"]]; 
     o.save("c:/test.xml");

  string "2" was not saved in the file.

* (ID964): :ref:`ltostr` created an incorrect result string for negative values
  for base 10.

* (ID966): NC-Brower: If the channel attribute C_format = "" was empty an empty
  field was displayed. UniPlot 4.2.5 will display the value in the default format
  if the string is empty (see :ref:`file-import-options`). 

* (ID974): Error in documentation of :ref:`fwrite`: The data type "real48" can
  only be read (see :ref:`fread`) and not written.

* (ID986): A memory access violation could occur if huge matrices were assigned
  to a variable.

  Example::

      a = zeros(1,1e6) // Works!
      a = zeros(1,1e8) // Does not work. a will be destroyed.

  The next access to *a*  would create a memory violation.

* (ID991): Data Exchange: If a channel contained only invalid values
  (missing_value) the data exchange was aborted. In UniPlot 4.2.5 the data of 1D
  and 2D datasets is set to 0;0 and the data exchange is continued. For 3D
  datasets the data exchange will be aborted.

* (ID992): MDF-Format: If the channel name in the MDF file was not
  null-terminated parts of the following channel comment would be added to the
  channel name. This bug occurred if the channel name in the MDF file was 32 
  characters long.

* (ID995): ``smMat = ExcelRead()``: To convert real numbers, the format sting
  "%g" was used. In UniPlot 4.2.5 the format string %.16g is used. Otherwise
  the OLE date/time values were converted incorrectly. If :ref:`ExcelRead` 
  returned a date/time string the return value was, for example, 38500 instead
  of 38500.423.

* (ID996): ``o = error_create("a",1,"b")`` was treated incorrectly by the
  garbage collector. The strings in *o*  were deleted but the object was still 
  valid.

:sub:`id-2045184`