Overview

The Plot items module provides the classes for the plot items. Plot items are the graphical objects that are displayed on a 2D plotting widget like BasePlot. Items may be created either by using the appropriate class constructor or by using the builder.make factory object.

See also

Item builder

Module providing the builder.make factory object which can be used to create plot items

Plot widgets

Module providing ready-to-use curve and image plotting widgets and dialog boxes

Curves

The following curve items are available:

• CurveItem: a curve plot item

• ErrorBarCurveItem: a curve plot item with error bars

Images

The following image items are available:

• ImageItem: simple images

• TrImageItem: images supporting arbitrary affine transform

• XYImageItem: images with non-linear X/Y axes

• Histogram2DItem: 2D histogram

• ImageFilterItem: rectangular filtering area that may be resized and moved onto the processed image

• assemble_imageitems()

• get_plot_qrect()

• get_image_from_plot()

Flow fields

The following flow field items are available:

• QuiverItem: a flow field item with arrows

Grid

A single grid item is available: GridItem.

Shapes

The following shape items are available:

• PolygonShape

• RectangleShape

• ObliqueRectangleShape

• PointShape

• SegmentShape

• EllipseShape

• Axes

• XRangeSelection

• YRangeSelection

• Marker

• RectangleSVGShape

• SquareSVGShape

• CircleSVGShape

Annotations

The following annotation items are available:

• AnnotatedPoint

• AnnotatedSegment

• AnnotatedXRange

• AnnotatedYRange

• AnnotatedRectangle

• AnnotatedObliqueRectangle

• AnnotatedEllipse

• AnnotatedCircle

• AnnotatedPolygon

Labels

The following label items are available:

• LabelItem

• LegendBoxItem

• SelectedLegendBoxItem

• XRangeComputation

• YRangeComputation

• RangeComputation2d

• DataInfoLabel