MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guide de l'utilisateur télécharger pdf (Page 685)

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101

GUI that Displays and Graphs Tabular Data

The tableplot main function creates a GUI figure with the following UI

components:

• A uitable w ith three columns of data

• An axes with a title

• Three check boxes for plotting columns of data

• Two static text strings

Techniques Explored in the tableplot Example

The example demonstrates some ways to interact with a uitable and the data

it holds:

• Extract column names a nd use them as menu items

• Graph specific columns of data

• Brush the graph when the user selects cells in the table

A 2-D axes displays line graphs of the data in response to selecting check

boxes and in real time, the results of selecting observations in the table.

To coordinate plot creation and removal and data brushing, uicontrol

callbacks pass in arguments specifying one or more handles of each other

and of graphic objects. The following table describes the callbacks and how

they use object handles.

Object

Handle Callback Type Callback Signature Remarks

uitable

htable Cell

Selection

Callback

{@select_callback}

Sets x,y,z values for

nonselected markers to

empty; makes m arkers

for

eventdata visible.

Check

box

—

Callback {@plot_callback,1}

Plots a line graph of

column 1 data.

Check

box

—

Callback {@plot_callback,2}

Plots a line graph of

column 1 data.

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MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guide de l'utilisateur Page 685

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