* Loads only data that is currently visible
* Downsamples to avoid plotting too many samples
* Loads data in chunks to limit memory usage during downsampling
AxisItem correctly handles scaling with values that are not power of 10
Can remove items from legend
updated plotItem setLogMode to allow unspecified axes
- AxisItem shows fewer tick levels in some cases.
- Lots of boundingRect and dataBounds caching
(improves ViewBox auto-range performance, especially with multiple plots)
- GraphicsScene avoids testing for hover intersections with non-hoverable items
(much less slowdown when moving mouse over plots)
Improved performance for remote plotting:
- reduced cost of transferring arrays between processes (pickle is too slow)
- avoid unnecessary synchronous calls
Added RemoteSpeedTest example
- fixed example testing script
- Added finer axis ticks back in some instances
- fixed improper bounds caching in log/fft mode
- fixed exception handling in remoteproxy
- Added documentation on export system
- Added flowchart documentation and custom node example
Bugfixes:
- prevent PlotCurveItem drawing shadow when unnecessary
- deprecated flowchart.Node.__getattr__ -- causes too many problems.
- 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
[ 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
