Features Download
From: Dave Peterson <dpeterson <at> enthought.com>
Subject: ETS 3.2.0 Released
Newsgroups: gmane.comp.python.announce
Date: Monday 23rd March 2009 20:45:57 UTC (over 7 years ago)

I'm pleased to announce that Enthought Tool Suite (ETS) version 3.2.0 
has been tagged and released!

Source distributions (.tar.gz) have been uploaded to PyPi, and Windows 
binaries will be follow shortly. A full install of ETS can be done using 
Setuptools via a command like:
easy_install -U "ets[nonets] >= 3.2.0"

NOTE 1: Users of an old ETS release will need to first uninstall prior 
to installing the new ETS.

NOTE 2: If you get a 'SandboxViolation' error, simply re-run the command 
again -- it may take multiple invocations to get everything installed. 
(This error appears to be a long-standing incompatibility between 
numpy.distutils and setuptools.)

Please see below for a list of what's new in this release.

What Is ETS?

The Enthought Tool Suite (ETS) is a collection of components developed 
by Enthought and the open-source community, which we use every day to 
construct custom scientific applications. It includes a wide variety of 
components, including:
* an extensible application framework
* application building blocks
* 2-D and 3-D graphics libraries
* scientific and math libraries
* developer tools
The cornerstone on which these tools rest is the Traits package, which 
provides explicit type declarations in Python; its features include 
initialization, validation, delegation, notification, and visualization 
of typed attributes.

More information on ETS is available from the development home page:


ETS 3.2.0 is a feature-added update to ETS 3.1.0, including numerous
bug-fixes. Some of the notable changes include:


* Domain limits - Mappers now can declare the "limits" of their valid 
domain. PanTool and ZoomTool respect these limits. (pwang)

* Adding "hide_grids" parameter to Plot.img_plot() and 
Plot.contour_plot() so users can override the default behavior of hiding 
grids. (pwang)

* Refactored examples to declare a Demo object so they can be be run 
with the demo.py example launcher. (vibha)

* Adding chaco.overlays package with some canned SVG overlays. (bhendrix)

* DragZoom now can scale both X and Y axes independently corresponding 
to the mouse cursor motion along the X and Y axes (similar to the zoom 
behavior in Matplotlib). (pwang)

* New Examples:
* world map (bhendrix)
* more financial plots (pwang)
* scatter_toggle (pwang)
* stacked_axis (pwang)

* Fixing the chaco.scales TimeFormatter to use the built-in localtime() 
instead of the one in the safetime.py module due to Daylight Savings 
Time issues with timedelta. (r23231, pwang)

* Improved behavior of ScatterPlot when it doesn't get the type of 
metadata it expects in its "selections" and "selection_masks" metadata 
keys (r23121, pwang)

* Setting the .range2d attribute on GridMapper now properly sets the two 
DataRange1D instances of its sub-mappers. (r23119, pwang)

* ScatterPlot.map_index() now respects the index_only flag (r23060, pwang)

* Fixed occasional traceback/bug in LinePlot that occurred when data was 
completely outside the visible range (r23059, pwang)

* Implementing is_in() on legends to account for padding and alignment 
(caused by tools that move the legend) (r23052, bhendrix)

* Legend behaves properly when there are no plots to display (r23012,

* Fixed LogScale in the chaco.scales package to correctly handle the 
case when the length of the interval is less than a decade (r22907, 

* Fixed traceback when calling copy_traits() on a DataView (r22894, vibha)

* Scatter plots generated by Plot.plot() now properly use the "auto" 
coloring feature of Plot. (r22727, pwang)

* Reduced the size of screenshots in the user manual. (r22720, rkern)


* 17, 18 March, 2009 (PR):
* NEW: A simple example to show how one can use TVTK’s visual module 
with mlab. [23250]
* BUG: The size trait was being overridden and was different from the 
parent causing a bug with resizing the viewer. [23243]

* 15 March, 2009 (GV):
* ENH: Add a volume factory to mlab that knows how to set color, vmin 
and vmax for the volume module [23221].

* 14 March, 2009 (PR):
* API/TEST: Added a new testing entry point: ‘mayavi -t’ now runs tests

in separate process, for isolation. Added enthought.mayavi.api.test to 
allow for simple testing from the interpreter [23195]...[23200], 
[23213], [23214], [23223].
* BUG: The volume module was directly importing the wx_gradient_editor 
leading to an import error when no wxPython is available. This has been 
tested and fixed. Thanks to Christoph Bohme for reporting this issue. 

* 14 March, 2009 (GV):
* BUG: [mlab]: fix positioning for titles [23194], and opacity for 
titles and text [23193].
* ENH: Add the mlab_source attribute on all objects created by mlab, 
when possible [23201], [23209].
* ENH: Add a message to help the first-time user, using the new banner 
feature of the IPython shell view [23208].

* 13 March, 2009 (PR):
* NEW/API: Adding a powerful TCP/UDP server for scripting mayavi via the 
network. This is available in enthought.mayavi.tools.server and is fully 
documented. It uses twisted and currently only works with wxPython. It 
is completely insecure though since it allows a remote user to do 
practically anything from mayavi.

* 13 March, 2009 (GV)
* API: rename mlab.orientationaxes to mlab.orientation_axes [23184]

* 11 March, 2009 (GV)
* API: Expose ‘traverse’ in mlab.pipeline [23181]

* 10 March, 2009 (PR)
* BUG: Fixed a subtle bug that affected the ImagePlaneWidget. This 
happened because the scalar_type of the output data from the 
VTKDataSource was not being set correctly. Getting the range of any 
input scalars also seems to silence warnings from VTK. This should 
hopefully fix issues with the use of the IPW with multiple scalars. I’ve 
added two tests for this, one is an integration test since those errors 
really show up only when the display is used. The other is a traditional 
unittest. [23166]

* 08 March, 2009 (GV)
* ENH: Raises an error when the user passes to mlab an array with 
infinite values [23150]

* 07 March, 2009 (PR)
* BUG: A subtle bug with a really gross error in the GridPlane 
component, I was using the extents when I should really have been 
looking at the dimensions. The extract grid filter was also not flushing 
the data changes downstream leading to errors that are also fixed now. 
These errors would manifest when you use an ExtractGrid to select a VOI 
or a sample rate and then used a grid plane down stream causing very 
wierd and incorrect rendering of the grid plane (thanks to conflation of 
extents and dimensions). This bug was seen at NAL for a while and also 
reported by Fred with a nice CME. The CME was then converted to a nice 
unittest by Suyog and then improved. Thanks to them all. [23146]

* 28 February, 2009 (PR)
* BUG: Fixed some issues reported by Ondrej Certik regarding the use Of 
mlab.options.offscreen, mlab.options.backend = ‘test’, removed cruft 
from earlier ‘null’ backend, fixed bug with incorrect imports, 
add_dataset set no longer adds one new null engine each time 
figure=False is passed, added test case for the options.backend test. 

* 23 February, 2009 (PR)
* ENH: Updating show so that it supports a stop keyword argument that 
pops up a little UI that lets the user stop the mainloop temporarily and 
continue using Python [23049]

* 21 February, 2009 (GV)
* ENH: Add a richer view for the pipeline to the MayaviScene [23035]
* ENH: Add safegards to capture wrong triangle array sizes in 
mlab.triangular_mesh_source. [23037]

* 21 February, 2009 (PR)
* ENH: Making the transform data filter recordable. [23033]
* NEW: A simple animator class to make it relatively to create 
animations. [23036] [23039]

* 20 February, 2009 (PR)
* ENH: Added readers for various image file formats, poly data readers 
and unstructured grid readers. These include DICOM, GESigna, DEM, 
MetaImage (mha,mhd) MINC, AVSucd, GAMBIT, Exodus, STL, Points, Particle, 
PLY, PDB, SLC, OBJ, Facet and BYU files. Also added several tests for 
most of this functionality along with small data files. These are 
additions from PR’s project staff, Suyog Jain and Sreekanth Ravindran. 
* ENH: We now change the default so the ImagePlaneWidget does not 
control the LUT. Also made the IPW recordable. [23011]

* 18 February, 2009 (GV)
* ENH: Add a preference manager view for editing preferences outside 
envisage [22998]

* 08 February, 2009 (GV)
* ENH: Center the glyphs created by barchart on the data points, as 
mentioned by Rauli Ruohonen [22906]

* 29 January, 2009 (GV)
* ENH: Make it possible to avoid redraws with mlab by using 
mlab.gcf().scene.disable_render = True [22869]

* 28 January, 2009 (PR and GV)
* ENH: Make the mlab.pipeline.user_defined factory function usable to 
add arbitrary filters on the pipeline. [22867], [22865]

* 11 January, 2009 (GV)
* ENH: Make mlab.imshow use the ImageActor. Enhance the ImageActor to 
map scalars to colors when needed. [22816]


* Fixed a bug whereby faulty error handling in the PyProtocols Pyrex 
speedup code keeps references to tracebacks that have been handled. In 
so doing, clean up the same code such that it can be used with a modern 
Pyrex release (a bare raise can no longer be used outside of an except: 

* RangeEditor factory now supports a 'logslider' mode: Thanks to Matthew 
Turk for the patch

* TabularEditor factory now supports editing of all columns: Thanks to 
Didrik Pinte for the patch

* DateEditor factory in 'custom' style now supports multi-select feature.

* DateEditor and TimeEditor now support the 'readonly' style.

* Fixed a bug in the ArrayEditor factory that was causing multiple trait 
change events to get fired when the underlying array is changed 
externally to the editor: Thanks to Matthew Turk for he patch.

* Fixed a circular import error in Color, Font and RGBColor traits

* Fixed a bug in the factory for ArrayViewEditor so it now calls the 
toolkit backend-specific editor


* RangeEditor now supports a 'logslider' mode: Thanks to Matthew Turk 
for the patch

* TabularEditor now supports editing of all columns: Thanks to Didrik 
Pinte for the patch

* DateEditor in 'custom' style now supports multi-select feature.

* DateEditor and TimeEditor now support the 'readonly' style.

* Added a trait to the wx pyface workbench View to indicate if the view 
dock window should be closeable.

* Fixed the DirectoryEditor to popup the correct file dialog (thanks to 
Luca Fasano and Phil Thompson)

* Fixed a circular import error in Color, Font and RGBColor traits

* Fixed a bug in the ColorEditor that was causing the revert action to 
not work correctly.

* Fixed a bug that caused a traceback when trying to undock a pyface 
dock window

* Fixed a bug in the 'livemodal' view that caused the UI to become 
unresponsive if the 'updated' event was fired on the contained view.

* Fixed bugs in ListEditor (notebook style) that caused a loss of sync 
between the 'selected' trait and the activated dock window.


* RangeEditor now supports a 'logslider' mode: Thanks to Matthew Turk 
for the patch

* Fixed the DirectoryEditor to popup the correct file dialog (thanks to 
Luca Fasano and Phil Thompson)


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