plot

Plot tree GUI

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Syntax

plot(t)

fig = plot(t)

newt = plot(trobj,'read',fig)

Description

plot is a graphical tree-management utility.

plot(t) plots the tree t. The figure that contains the tree is a GUI tool.

You can change the Node Label to Depth_Position (default) or Index.
You can change the Node Action to Visualize (default) or Split-Merge.

You can click the nodes to execute the current Node Action.

example

fig = plot(t) returns the handle to the figure.

newt = plot(trobj,'read',fig) returns the tree plotted in fig. You can use this syntax to return the tree after performing some split or merge actions.

Examples

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Plot Wavelet Packet Trees

Open Live Script

This example shows how to plot wavelet packet trees.

Load a 1-D signal.

load noisbloc

Obtain the wptree object that corresponds to a level 2 wavelet packet decomposition of the signal using the db2 wavelet.

t = wpdec(noisbloc,2,"db2");

Plot the tree.

plot(t)

Figure contains 2 axes objects and other objects of type uimenu. Axes object 1 with title Tree Decomposition contains 13 objects of type line, text. Axes object 2 with title data for node: 0 or (0,0). contains an object of type line.

Change Node Label from Depth_Position to Index. Click node (3) to obtain the following figure.

Set the Node Label back to Depth_Position. Change Node Action to Split-Merge. Click on the (1,1) node to get the following figure. The figure shows the discrete wavelet transform down to level 2.

Load an image. Obtain the wptree object that corresponds to a level 1 wavelet packet decomposition of the image using the sym4 wavelet.

load mask
t = wpdec2(X,1,'sym4');

Plot the tree.

plot(t)

Figure contains 2 axes objects and other objects of type uimenu. Axes object 1 with title Tree Decomposition contains 9 objects of type line, text. Axes object 2 with title data for node: 0 or (0,0). contains an object of type image.