5-3-1

Drawing a 3D Graph

5-3 Drawing a 3D Graph

This section explains how to draw a 3D graph, as well as how to change the angle of a graph and how to rotate a graph.

Configuring 3D Graph View Window Parameters

3D Graph View Window parameters let you specify the maximum and minimum values for the x-, y- and z-axis. You can also specify the number of lines you would like for drawing the grid.

•For the xgrid enter the number of lines you would like drawn within the interval from xmin to xmax. For example, if xmin = −3, xmax = 3 and xgrid= 15, 15 almost vertical lines will be used to display your graph. The ygrid lines will be almost horizontal.

•After drawing a 3D graph, pressing the =key cycles the 3D Graph [Axes] setting (page 14-3-6) in the following sequence: “Off” → “On” → “Box” → “Off”, and so on.

Before drawing a graph, be sure to first configure View Window parameters as required to ensure proper display of the graph.

uClassPad Operation

(1)On the application menu, tap D.

•This starts up the 3D Graph application and displays the initial screen of the active 3D Graph Editor window.

(2)Tap 7 to display the View Window dialog box.

(3)Configure the View Window parameters as described below.

•Press c to move the cursor and input an appropriate value for each parameter.

Use this

To configure this View Window parameter:

Initial

item:

 

default

xmin

Minimum x-axis value

–3

xmax

Maximum x-axis value

3

 

 

 

xgrid

Number of grid lines used for x-axis direction

25

 

 

 

ymin

Minimum y-axis value

–3

ymax

Maximum y-axis value

3

ygrid

Number of grid lines used for y-axis direction

25

zmin

Minimum z-axis value

–3

zmax

Maximum z-axis value

3

 

 

 

angle θ

Clockwise angle of x-axis

20

angle φ

Eye position relative to the plane created by

70

the x-axis and y-axis, and the angle of the z-axis

 

 

 

 

 

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