Change Log

0.8.0: 2018/07/04

  • Graphical user interface:
    • Plot:
      • Adds support of x-axis date/time ticks for time series display (see silx.gui.plot.items.XAxis.setTickMode)
      • Adds support of interactive authoring of regions of interest (see silx.gui.plot.items.roi and silx.gui.plot.tools.roi)
      • Adds StatsWidget widget for displaying statistics on data displayed in a PlotWidget
      • Adds ScatterView widget for displaying scatter plot with tools such as line profile and mask
      • Overcomes the limitation to float32 precision with the OpenGL backend
      • Splits plot toolbar is several reusable thematic toolbars
    • Plot3D: Adds SceneWidget items to display many cubes, cylinders or hexagonal prisms at once
    • Adds silx.gui.utils package with submitToQtMainThread for asynchronous execution of Qt-related functions
    • Adds Qt signals to Hdf5TreeView to manage HDF5 file life-cycle
    • Adds GroupDialog dialog to select a group in a HDF5 file
    • Improves colormap computation with a Cython/OpenMP implementation
    • Main API changes:
      • Colormap is now part of silx.gui.colors
      • ColormapDialog is now part of silx.gui.dialogs
      • MaskToolsWidget.getSelectionMask method now returns None if no image is selected
      • Clean-up FrameBrowser API
  • Image
    • Adds an optimized marching squares algorithm to compute many iso contours from the same image
  • Input/output:
    • Improves handling of empty Spec scans
    • Add an API to NXdata parser to get messages about malformed input data
  • silx.sx
    • Allows to use silx.sx in script as in Python interpreter
    • sx.imshow supports custom y-axis orientation using argument origin=upper|lower
    • Adds sx.enable_gui() to enable silx widgets in IPython notebooks
  • silx convert
    • Improves conversion from EDF file series to HDF5
  • silx view
    • Adds user preferences to restore colormap, plot backend, y-axis of plot image,...
    • Adds –fresh option to clean up user preferences at startup
    • Adds a widget to create custom viewable NXdata by combining different datasets
    • Supports CTRL+C shortcut in the terminal to close the application
    • Adds buttons to collapse/expand tree items
    • NXdata view now uses the ScatterView widget for scatters
  • Miscellaneous
    • Drops official support of Debian 7
    • Drops versions of IPython console widget before the qtconsole package
    • Fixes EDF file size written by EdfFile module with Python 3

0.7.0: 2018/02/27

  • Input/output:
    • Priovides silx.io.url.DataUrl to parse supported links identifying group or dataset from files.
    • silx.io.open now supports h5pyd and silx custom URLs.
    • silx.io.get_data is provided to allow to reach a numpy array from silx.
  • OpenCL:
    • Provides an API to share memory between OpenCL tasks within the same device.
    • Provides CBF compression and decompression.
    • Simple processing on images (normalization, histogram).
    • Sift upgrade using memory sharing.
  • silx.sx:
    • Added contour3d function for displaying 3D isosurfaces.
    • Added points3d function for displaying 2D/3D scatter plots.
    • Added ginput function for interactive input of points on 1D/2D plots.
  • Graphic user interface:
    • Provides a file dialog to pick a dataset or a group from HDF5 files.
    • Provides a file dialog to pick an image from HDF5 files or multiframes formats.
    • The colormap dialog can now be used as non-modal.
    • PlotWidget can save the displayed data as a new NXentry of a HDF5 file.
    • PlotWidget exports displayed data as spec files using more digits.
    • Added new OpenGL-based 3D visualization widgets:
      • Supports 3D scalar field view 2D/3D scatter plots and images.
      • Provides an object oriented API similar to that of the 1D/2D plot.
      • Features a tree of parameters to edit visualized item’s properties (e.g., transforms, colormap...)
      • Provides interactive panning of cut and clip planes.
    • Updates of ScalarFieldView widget:
      • Added support for a 3x3 transform matrix (to support non orthogonal axes)
      • Added support of an alternative interaction when ctrl is pressed (e.g., rotate by default and pan when ctrl/command key is pressed).
      • Added 2 sliders to control light direction in associated parameter tree view.
  • silx view:
    • Uses a single colormap to show any datasets.
    • The colormap dialog can stay opened while browsing the data.
    • The application is associated with some file types to be used to load files on Debian.
    • Provides a square amplitude display mode to visualize complex images.
    • Browsing an NXentry can display a default NXdata.
    • Added explanation when an NXdata is not displayable.
    • NXdata visualization can now show multiple curves (see @auxiliary_signals).
    • Supports older NXdata specification.
  • silx convert:
    • Added handling of file series as a single multiframe
    • Default behavior changes to avoid to add an extra group at the root, unless explicitly requested (see –add-root-group).
    • Writer uses now utf-8 text as default (NeXus specification).
    • EDF files containing MCA data are now interpreted as spectrum.
  • Miscellaneous:
    • Added silx.utils.testutils to share useful unittest functions with other projects.
    • Python 2 on Mac OS X is no longer tested.
    • Experimental support to PySide2.
    • If fabio is used, a version >= 0.6 is mandatory.

0.6.0: 2017/10/02

  • OpenCl. Tomography. Implement a filtered back projection.
  • Add a PrintPreview widget and a PrintPreviewToolButton for PlotWidget.
  • Plot:
    • Add a context menu on right click.
    • Add a ComplexImageView widget.
    • Merged abstract Plot class with PlotWidget class.
    • Make colormap an object with signals (sigChanged)
    • Add a colorbar widget silx.gui.plot.ColorBar.
    • Make axis an object, allow axis synchronization between plots, allow adding constraints on axes limits.
    • Refactor plot actions, new sub-package silx.gui.plot.actions.
    • Add signals on PlotWidget items notifying updates.
    • Mask. Support loading of TIFF images.
  • Plot3d:
    • Rework toolbar and interaction to use only the left mouse button.
    • Support any colormap.
  • Hdf5TreeView:
    • Add an API to select a single tree node item (setSelectedH5Node)
    • Better support and display of types.
    • New column for displaying the kind of links.
    • Broken nodes are now selectable.
  • StackView. Add a setTitleCallback method.
  • Median filter. Add new modes (reflect, mirror, shrink) in addition to nearest.
  • IO:
    • Rename module spectoh5 to convert. Add support for conversion of fabio formats.
    • Support NPZ format.
    • Support opening an URI (silx.io.open(filename::path)).
    • Group methods .keys, .value and .items now return lists in Python 2 and iterators in Python 3.
  • Image. Add tomography utils: phantomgenerator to produce Shepp-Logan phantom, function to compute center of rotation (calc_center_corr, calc_center_centroid) and rescale the intensity of an image (rescale_intensity).
  • Commands:
    • silx view:
      • Add command line option –use-opengl-plot.
      • Add command line option –debug, to print dataset reading errors.
      • Support opening URI (silx view filename::path).
    • silx convert. New command line application to convert supported data files to HDF5.
  • Enable usage of silx.resources for other projects.
  • The silx license is now fully MIT.

0.5.0: 2017/05/12

  • Adds OpenGL backend to 1D and 2D graphics
  • Adds Object Oriented plot API with Curve, Histogram, Image, ImageRgba and Scatter items.
  • Implements generic launcher (silx view)
  • NXdataViewer. Module providing NeXus NXdata support
  • Math/OpenCL. Implementation of median filter.
  • Plot. Implementation of ColorBar widget.
  • Plot. Visualization of complex data type.
  • Plot. Implementation of Scatter Plot Item supporting colormaps and masks.
  • Plot. StackView now supports axes calibration.
  • I/O. Supports SPEC files not having #F or #S as first line character.
  • I/O. Correctly exposes UB matrix when found in file.
  • ROIs. Simplification of API: setRois, getRois, calculateRois.
  • ROIs. Correction of calculation bug when the X-axis values were not ordered.
  • Sift. Moves package from silx.image to silx.opencl.

0.4.0: 2017/02/01

  • Adds plot3D package (include visualization of 3-dimensional scalar fields)
  • Adds data viewer (it can handle n-dimensional data)
  • Adds StackView (ex. Visualization of stack of images)
  • Adds depth profile calculation (ex. extract profile of a stack of images)
  • Adds periodic table widget
  • Adds ArrayTableWidget
  • Adds pixel intensity histogram action
  • Adds histogram parameter to addCurve
  • Refactoring. Create silx.gui.data (include widgets for data)
  • Refactoring. Rename utils.load as silx.io.open
  • Changes active curve behavior in Plot. No default active curve is set by default
  • Fit Action. Add polynomial functions and background customization
  • PlotWindow. Provide API to access toolbar actions
  • Handle SPEC, HDF5 and image formats through an unified API
  • hdf5widget example. Inspect and visualize any datasets
  • Improves mask tool
  • Deprecates PlotWindow dock widgets attributes in favor of getter methods

0.3.0: 2016/10/12

  • Adds OpenCL management
  • Adds isosurface marching cubes
  • Adds sift algorithm for image alignement
  • Adds octaveh5 module to insure communication between octave and python using HDF5 file
  • Adds silx.utils module containing weakref and html-escape
  • Adds silx.sx for flat import (helper for interactive shell)
  • Adds HDF5 load API (supporting Spec files) to silx.io.utils module
  • Adds SpecFile support for multiple MCA headers
  • Adds HDF5 TreeView
  • Adds FitManager to silx.math.fit and FitWidget to silx.gui.fit
  • Adds ThreadPoolPushButton to silx.gui.widgets
  • Adds getDataRange function to plot widget
  • Adds loadUi, Slot and Property to qt.py
  • Adds SVG icons and support
  • Adds examples for plot actions, HDF5 widget, helper widgets, converter from Spec to HDF5
  • Adds tutorials for plot actions, spech5, spectoh5, sift and fitmanager
  • Improves right axis support for plot widget
  • Improves mask tool
  • Refactors widgets constructor: first argument is now the parent widget
  • Changes plot documentation and add missing module to the documentation

0.2.0: 2016/07/12

  • Adds bilinear interpolator and line-profile for images to silx.image
  • Adds Levenberg-Marquardt least-square fitting algorithm to silx.math.fit
  • Histogramnd changed to become a class rather than a function, API and return values changed
  • Adds HistogramndLut, using a lookup table to bin data onto a regular grid for several sets of data sharing the same coordinates
  • Adds legend widget and bottom toolbar to PlotWindow
  • Adds a line-profile toolbar to PlotWindow
  • Adds ImageView widget with side histograms and profile toolbar
  • Adds IPython console widget, to be started from PlotWindow toolbar
  • Adds Plot1D widget for curves and Plot2D widget for images
  • Adds ROI widget for curves in PlotWindow
  • Adds a mask widget and toolbar to plot (2D)
  • Renames silx.io.dicttoh5 to silx.io.dictdump
  • Adds configuration dictionary dumping/loading to/from JSON and INI files in silx.io.configdict
  • Adds specfile wrapper API compatible with legacy wrapper: silx.io.specfilewrapper
  • Transposes scan data in specfile module to have detector as first index
  • Set up nigthly build for sources package, debian packages (http://www.silx.org/pub/debian/) and documentation (http://www.silx.org/doc/)

0.1.0: 2016/04/14

  • Adds project build, documentation and test structure
  • Adds continuous integration set-up for Travis-CI and Appveyor
  • Adds Debian packaging support
  • Adds SPEC file reader, SPEC file conversion to HDF5 in silx.io
  • Adds histogramnd function in silx.math
  • Adds 1D, 2D plot widget with a toolbar, refactored from PyMca PlotWindow in silx.gui.plot