Documentation

This is machine translation

Translated by Microsoft
Mouse over text to see original. Click the button below to return to the English verison of the page.

view

Viewpoint specification

Syntax

view(az,el)
view([az,el])
view([x,y,z])
view(2)
view(3)
view(ax,...)
[az,el] = view

Description

The position of the viewer (the viewpoint) determines the orientation of the axes. You specify the viewpoint in terms of azimuth and elevation, or by a point in three-dimensional space.

view(az,el) and view([az,el]) set the viewing angle for a three-dimensional plot. The azimuth, az, is the horizontal rotation about the z-axis as measured in degrees from the negative y-axis. Positive values indicate counterclockwise rotation of the viewpoint. el is the vertical elevation of the viewpoint in degrees. Positive values of elevation correspond to moving above the object; negative values correspond to moving below the object.

view([x,y,z]) sets the view direction to the Cartesian coordinates x, y, and z. The magnitude of (x,y,z) is ignored.

view(2) sets the default two-dimensional view, az = 0, el = 90.

view(3) sets the default three-dimensional view, az = –37.5, el = 30.

view(ax,...) uses axes ax instead of the current axes.

[az,el] = view returns the current azimuth and elevation.

Examples

View the object from directly overhead.

az = 0;
el = 90;
view(az, el);

Set the view along the y-axis, with the x-axis extending horizontally and the z-axis extending vertically in the figure.

view([0 0]);

Rotate the view about the z-axis by 180º.

az = 180;
el = 90;
view(az, el);

More About

collapse all

Tips

Azimuth is a polar angle in the x-y plane, with positive angles indicating counterclockwise rotation of the viewpoint. Elevation is the angle above (positive angle) or below (negative angle) the x-y plane.

This diagram illustrates the coordinate system. The arrows indicate positive directions.

For more information, see CameraPosition, CameraTarget, CameraViewAngle, and Projection.

Introduced before R2006a

Was this topic helpful?