GitLab

- Canvas: added per-item context menus
- Isocurve: 
     option to extend curves to array boundaries
     option to generate QPainterPath instead of vertex array
- Isosurface is a bajillion times faster
- ViewBox
     added clear() method
     added locate(item) method (shows where an item is for debugging)

Bugfixes:
- automated example testing working properly
- Exporter gets incorrect source rect when operating on PlotWidget
- Set correct DPI and size for SVG exporter
- GLMeshItem works properly with whole-mesh color specified as sequence
- bugfix in functions.transformCoordinates for rotated matrices
- reload library checks for modules that are imported multiple times
- GraphicsObject, UIGraphicsItem: added workaround for PyQt / itemChange bug
- ScatterPlotItem: disable cached render during export

Other:
- added documentation for several functions
- minor updates to setup.py

- Fixes for SVG exporter
- functions.isosurface() is a bazillion times faster (API change: return value format has changed)

setup.py updates

Numerous fixes for python 3 compatibility

- Image exporter detects GraphicsView background color
- Corrected exporter filename handling for SVG export
- ViewBox no longer attempts to deregister itself while python is exiting
- Speedup for conversion using np.array(MetaArray_instance)
- GLGraphicsItem updates immediately when its GL options have changed
- Corrected some GL shader program bugs for nVidia drivers
- Fixed coordinate mapping bug in functions.transformCoordinates
- Fixed PySide import error

added primitive test capability to run through all examples - works but needs to be refined to make it better
-- to run the tests simply run "python pyqtgraph/examples --test"

   [ Note: These APIs have changed significantly. ]
  - MeshData and GLMeshItem now operate on numpy arrays instead of lists.
  - MeshData can handle per-vertex and per-triangle color information
Added GLSurfacePlotItem class based on new GLMeshItem
GLGraphicsItem now has per-item support for customizing GL state (setGLOptions method)
Added several new shader programs
Added new examples:
   GLIsosurface
   GLSurfacePlot
   GLshaders

  - Can be anchored to parent item at any location
  - Support for filled plot styles
  - Automatically resizes to fit contents
  - PlotItem can auto-generate legend

  - generalized makeARGB API: can now process arrays of arbitrary shape.
  - affineSlice automatically converts vector arguments to array
  - new function applyLookupTable taken from makeARGB
  - isosurface function returns array
Updated VideoSpeedTest example to follow new makeARGB API

LayoutWidget: row argument now accepts 'next' as value
ParameterTree bugfix: avoid infinite recursion when accessing non-existent attributes
ViewBox: avoid exit error caused when cleanup callback is invoked while python is shutting down

   - ROI.movePoint now expects parent coordinates by default
   - Added ROI.getHandles()
   - Renamed MultiLineROI to MultiRectROI
   - Reorganized MultiRectROI, added addSegment and removeSegment methods (thanks Martin!)

   - documentation updates
   - PlotItem informs all items when switching to log mode
   - GradientEditorItem has sigGradientChangeFinished
   - ParameterTree list types check linits on initialization
   - Fixed RuntimeError in TreeWidget.clear()

Reorganized shader programs
Infrastructure updates for OpenGL system

Added function for generating pseudo-scatter plots (points stack in a histogram-like manner)

Documentation updates (linked GLImageItem and Legend item to indexes)

Added GLImageItem and example.

    Fixed exporters to automatically add filename extension.
    Fixed ViewBox 'auto pan' option.
- Other minor edits.

Much more efficient at rapid updates.

bugfix for ViewBox.childrenBounds -- vertical infiniteLines were not being included in autoscale range

Added example scripts used for bundling with py2exe