View angle control in MATLAB - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the view function do in MATLAB?

The view function sets or queries the viewing angle for 3D plots, controlling how the plot is seen from different directions.

beginner

How do you set the azimuth and elevation angles using view?

Use view(az, el) where az is the azimuth angle (rotation around vertical axis) and el is the elevation angle (height angle from horizontal plane).

intermediate

What is the default view angle in MATLAB 3D plots?

The default view angle is view(-37.5, 30), which means an azimuth of -37.5 degrees and elevation of 30 degrees.

beginner

How can you reset the view to 2D in MATLAB?

Use view(2) to set the view to a 2D view looking down the z-axis.

beginner

What happens if you use view(3) in MATLAB?

The command view(3) sets the view to the default 3D view with azimuth -37.5 and elevation 30 degrees.

Which command sets the view to look directly from above in MATLAB?

A view(0, 90)

B view(90, 0)

C view(2)

D view(3)

An elevation of 90 degrees means looking straight down from above, so view(0, 90) sets this view.

What does view(2) do in MATLAB?

A Zooms into the plot

B Sets a 3D default view

C Rotates the plot by 45 degrees

D Sets a 2D view looking down the z-axis

view(2) sets the view to 2D, looking down the z-axis.

How do you specify the azimuth and elevation angles in view?

A view(az, el)

B view(angle)

C view(x, y)

D view(azimuth)

The syntax view(az, el) sets azimuth and elevation angles.

What is the azimuth angle in view(az, el)?

A Angle from horizontal plane

B Zoom level

C Rotation around vertical axis

D Distance from origin

Azimuth is the rotation angle around the vertical axis.

Which command resets the view to MATLAB's default 3D angle?

A view(0, 0)

B view(3)

C view(2)

D view(90, 0)

view(3) resets the view to the default 3D angle.

Explain how to change the view angle of a 3D plot in MATLAB using the view function.

Think about how you turn your head left-right and up-down to look at something.

Describe the difference between view(2) and view(3) in MATLAB.

One looks from above, the other shows 3D perspective.