XY Graph - Display X-Y plot of signals using MATLAB figure window

Library

Sinks

Description

The XY Graph block displays an X-Y plot of its inputs in a MATLAB figure window.

The block has two scalar inputs. The block plots data in the first input (the x direction) against data in the second input (the y direction). (See How to Rotate a Block for a description of the port order for various block orientations.) This block is useful for examining limit cycles and other two-state data. Data outside the specified range does not appear.

A figure window appears for each XY Graph block in the model at the start of simulation.

Data Type Support

The XY Graph block accepts real signals of the following data types:

• Floating point

• Built-in integer

• Fixed point

• Boolean

For more information, see Data Types Supported by Simulink in the Simulink documentation.

Parameters and Dialog Box

x-min

Specify the minimum x-axis value. The default is -1.

x-max

Specify the maximum x-axis value. The default is 1.

y-min

Specify the minimum y-axis value. The default is -1.

y-max

Specify the maximum y-axis value. The default is 1.

Sample time

Specify the time interval between samples. To inherit the sample time, set this parameter to -1. See How to Specify the Sample Time in the Simulink documentation for more information.

Examples

The following model computes the points that define a circle of radius 4, centered at the origin of the x-y plane.

When you simulate the model, a figure window appears.

Characteristics

Sample Time	Specified in the Sample time parameter
States	0
Zero-Crossing Detection	No

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