Matrices

Velocity field - Each arrow represents a vector. This type of plot can be used to show ice displacement, slope gradient, oceanic current and more.

Contour plot - The lines connect data items with equal values.

Image - The X and Y coordinates correspond to the value indicated by the axes. The Z coordinate is represented by the color.

Surface plot - The data values are shown in perspective, giving a three dimensional view of the data set.

Show3 - This combines 3 different representations of the same data set. The top has a contour plot. The bottom has an image plot. In the middle, there is a surface mesh.

SHOW3, data

Menu Options

File Menu

Select "Quit" to exit the Matrix Demo and return to the IDL Demo Main Screen.

About Menu

Select "About matrix plotting" for information about the Matrix Demo.

Features

Select one of the following from the set of "radio buttons" to change the display:

Velocity field

Contour plot

Image

Surface

Show3

4 plots (items 1 through 4)

Generate New Data button

Click this button to generate and display a new data set.

IDL Demo Online Help (October 11, 2006)