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.. currentmodule:: silx.gui.plot
:mod:`PlotWidget`: Base class for plotting widgets
==================================================
.. module:: silx.gui.plot.PlotWidget
.. currentmodule:: silx.gui.plot.PlotWidget
The :class:`PlotWidget` is a Qt widget providing the plot API initially
provided in `PyMca <http://pymca.sourceforge.net/>`_.
It is the basis of other plot widget, thus all plot widgets share the same API.
For an introduction and examples of the plot API, see :doc:`getting_started`.
:class:`PlotWidget`
-------------------
.. currentmodule:: silx.gui.plot.PlotWidget
.. autoclass:: PlotWidget
:show-inheritance:
Plot data
.........
Those methods allow to add and update plotted data:
.. automethod:: PlotWidget.addCurve
.. automethod:: PlotWidget.addImage
.. automethod:: PlotWidget.addScatter
.. automethod:: PlotWidget.addHistogram
Get data
........
Those methods return objects providing access to plotted data:
.. automethod:: PlotWidget.getItems
.. automethod:: PlotWidget.getCurve
.. automethod:: PlotWidget.getImage
.. automethod:: PlotWidget.getScatter
.. automethod:: PlotWidget.getHistogram
Plot markers
............
It is also possible to add point or line markers to the plot:
.. automethod:: PlotWidget.addMarker
.. automethod:: PlotWidget.addXMarker
.. automethod:: PlotWidget.addYMarker
Remove data from the plot
.........................
.. automethod:: PlotWidget.clear
.. automethod:: PlotWidget.remove
Title
.....
Those methods handle the plot title:
.. automethod:: PlotWidget.getGraphTitle
.. automethod:: PlotWidget.setGraphTitle
Axes
....
Those two methods give access to :class:`.items.Axis` which handle the limits, scales and labels of axis:
.. automethod:: PlotWidget.getXAxis
.. automethod:: PlotWidget.getYAxis
The following methods handle plot limits, aspect ratio, grid and axes display:
.. automethod:: PlotWidget.setLimits
.. automethod:: PlotWidget.isKeepDataAspectRatio
.. automethod:: PlotWidget.setKeepDataAspectRatio
.. automethod:: PlotWidget.getGraphGrid
.. automethod:: PlotWidget.setGraphGrid
.. automethod:: PlotWidget.setAxesDisplayed
Reset zoom
..........
.. automethod:: PlotWidget.resetZoom
The following methods allow to add margins around the data when performing a zoom reset:
.. automethod:: PlotWidget.getDataMargins
.. automethod:: PlotWidget.setDataMargins
Defaults
........
Those methods set-up default values for :meth:`PlotWidget.addCurve` and
:meth:`PlotWidget.addImage`:
.. automethod:: PlotWidget.getDefaultColormap
.. automethod:: PlotWidget.setDefaultColormap
.. automethod:: PlotWidget.getSupportedColormaps
.. automethod:: PlotWidget.setDefaultPlotPoints
.. automethod:: PlotWidget.setDefaultPlotLines
Interaction
...........
Those methods allow to change the interaction mode (e.g., drawing mode)
of the plot and to toggle the use of a crosshair cursor:
.. automethod:: PlotWidget.getInteractiveMode
.. automethod:: PlotWidget.setInteractiveMode
.. automethod:: PlotWidget.getGraphCursor
.. automethod:: PlotWidget.setGraphCursor
.. automethod:: PlotWidget.isPanWithArrowKeys
.. automethod:: PlotWidget.setPanWithArrowKeys
Coordinates conversion
......................
.. automethod:: PlotWidget.getDataRange
.. automethod:: PlotWidget.getPlotBoundsInPixels
.. automethod:: PlotWidget.dataToPixel
.. automethod:: PlotWidget.pixelToData
Active Item
...........
.. automethod:: PlotWidget.setActiveCurveSelectionMode
.. automethod:: PlotWidget.getActiveCurveSelectionMode
.. automethod:: PlotWidget.getActiveCurveStyle
.. automethod:: PlotWidget.setActiveCurveStyle
.. automethod:: PlotWidget.getActiveCurve
.. automethod:: PlotWidget.setActiveCurve
.. automethod:: PlotWidget.getActiveImage
.. automethod:: PlotWidget.setActiveImage
Misc.
.....
.. automethod:: PlotWidget.getWidgetHandle
.. automethod:: PlotWidget.saveGraph
Signals
.......
The :class:`PlotWidget` provides the following Qt signals:
.. autoattribute:: PlotWidget.sigPlotSignal
.. autoattribute:: PlotWidget.sigSetKeepDataAspectRatio
.. autoattribute:: PlotWidget.sigSetGraphGrid
.. autoattribute:: PlotWidget.sigSetGraphCursor
.. autoattribute:: PlotWidget.sigSetPanWithArrowKeys
.. autoattribute:: PlotWidget.sigItemAdded
.. autoattribute:: PlotWidget.sigItemAboutToBeRemoved
.. autoattribute:: PlotWidget.sigContentChanged
.. autoattribute:: PlotWidget.sigActiveCurveChanged
.. autoattribute:: PlotWidget.sigActiveImageChanged
.. autoattribute:: PlotWidget.sigActiveScatterChanged
.. autoattribute:: PlotWidget.sigInteractiveModeChanged
.. toctree::
:hidden:
plotsignal.rst
.. PlotWidget public API that is not documented:
Could be added:
- addItem
- pan
- getLimitsHistory
- isDefaultPlotPoints
- isDefaultPlotLines
- setGraphCursorShape
- getAutoReplot, setAutoReplot, replot
Should not be added:
* Should be private:
- notify, setCallback, graphCallback
* Use remove instead:
- removeCurve, removeImage, removeItem, removeMarker
- clearCurves, clearImages, clearItems, clearMarkers
* Use items instead:
- isCurveHidden, hideCurve
* Use items.axis instead:
- getGraphXLimits, setGraphXLimits
- getGraphYLimits, setGraphYLimits
- getGraphXLabel, setGraphXLabel
- getGraphYLabel, setGraphYLabel
- isXAxisLogarithmic, setXAxisLogarithmic
- isYAxisLogarithmic, setXAxisLogarithmic
- isXAxisAutoScale, setXAxisAutoScale
- isYAxisAutoScale, setYAxisAutoScale
- setYAxisInverted, isYAxisInverted
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