Method to override to manually specify the SVG writer mechanism. Parameters ---------- nodes Dictionary keyed by

Convenience function for generating common UI types

return the current aspect ratio

Retrieve the :class:`~pyqtgraph.ColorMap` object currently used. Returns ------- ColorMap or None The a

Generates a ColorMap object from a colorcet definition. Same as ``colormap.get(name, source='colorcet')``.

Generates a ColorMap object from a Matplotlib definition. Same as ``colormap.get(name, source='matplotlib')``.

Return a version string with information about this git checkout. If the checkout is an unmodified, tagged commit, then return the tag version

Return a `PyQtGraph` icon from the registry by `name`

Return the ImageItem for this ImageView.

Return the version string defined in __init__.py

Return the item in (*row*, *col*). If the cell is empty, return None.

Return the array representing the current level settings. See :meth:`setLevels`. When `autoLevels` is active, the format is

Get the numpy array representation of the data provided to PlotDataItem. Returns ------- xData : np.ndarray or None

Return a list of all items that should be painted in the correct order.

Get the ranges in which automatic SI prefix scaling is enabled. Returns ------- tuple of tuple of float, float

Returns the position of handles in the scene coordinate system. The format returned is a list of (name, pos) tuples.

return all data acquired since last get_data call

Return (r,g,b,a) normalized for use in opengl

Handle a single request from the remote process. Blocks until a request is available.

Return True if this Parameter has children.

Returns True if the result for this request has arrived.

Generate a QColor from HSVa values. (all arguments are float 0.0-1.0)

Called after an item is added to a GLViewWidget. The widget's GL context is made current before this method is called. (So t

N-dimensional interpolation similar to scipy.ndimage.map_coordinates. This function returns linearly-interpolated values sampled from a

By default, the positive x-axis points rightward on the screen. Use invertX(True) to reverse the x-axis.

Return True if this item should be included in the tab-focus order

Return True if the gradient has exactly two stops in it: black at 0.0 and white at 1.0

Generate isocurve from 2D data using marching squares algorithm. ============== ========================================================

Called when the data of this item has changed.

Called when this item is clicked on. Override this method to react to user clicks.

Return the numerical index of GraphicsItem object passed in Parameters ---------- item : QGraphicsLayoutItem Item

Called when item has been dropped elsewhere in the tree. Return True to accept the move, False to reject.

Provides the TargetLabel if it exists Returns ------- TargetLabel or None If a TargetLabel exists for this Target

Return the previous position of the mouse in the coordinate system of the item that the event was delivered to.

Return the previous scene position of the mouse.