This function enables the user to change the attribute of the curve.
Click ATTRIBUTE to display the control window at the bottom of the graph window,
as shown in Figure
9.4.3.
Figure 9.4.3 Curve Attribute control window
There are many options for the user to change the attribute of the
selected curve. The list on the left of the curve window shows the curve names
in the graph window. The user should select a desired curve followed by entering
a new name in the Curve Name field, and then click Apply to change the name.
1.
ON/OFF
This function enables the user to turn on/off the selected curve(s) in
the graph window. The user may select a curve by clicking the name in the list,
or select multiple curves by pressing the SHIFT or CTRL key while clicking the
mouse button.
2.
PROPERTIES
This function will display a window to present the basic properties
(number of points in curve, Min. Y and Max. Y coordinates) of the selected
curve. A typical PROPERTIES window is shown in Figure 9.4.4.
Figure 9.4.4 Curve Properties window
3.
CURVE NAME
This function allows the user to change the name of the selected curve.
4.
CURVE STYLE
This function allows the user to change the style of the selected
curve. There are four styles available.
SOLID |
DASH |
DOT |
DASH DOT |
The default style is SOLID and the user can press the button on the right of the text box to select
a desired type. Click APPLY to update the graph window.
5.
MARK
This function allows the user to change the type of curve mark. There
are six types of curve mark available.
ROUND |
SQUARE |
UP TRIANGULAR |
DOWN TRIANGULAR |
DIAMOND |
NO MARK |
The user can press the button on the right of the text box to select
a desired type. Click APPLY to update the graph window.
6.
NUMBER OF CURVE MARKS
This function allows the user to change the number of curve marks on
the selected curve. The user can click button on the right of the text box to select
a desired number (2~15) of curve marks.
7.
WIDTH
This function allows the user to change the width of the selected
curve. The user can press the button on the right of the text box to select
a desired number (1~5) of curve widths.
8.
LEGEND ON/OFF
This function allows the user
to display or hide the legend in the curve operation control window.
9.
LEGEND LOCATION
This function allows the user to change legend location. Click this button,
and then move the legend to the desired location by the mouse.
10.
CURVE COLOUR
This function allows the user to change the color of the selected
curve. The user clicks button right to Curve Color to display the
color panel, as shown in Figure
9.4.5. The user may select the desired color for the curve.
If the user does not want to change the color after the color panel is
displayed, click anywhere outside the color panel to cancel the operation.
Click APPLY to update the graph window.
Figure 9.4.5 Color panel
11.
BACKGROUND COLOUR
This function allows the user to change the background color of the
graphic window. The default background color is black. The procedure of
changing the background is the same as the one described in the CURVE COLOUR
function.
12.
AXIS OPERATION
This function enables the user to modify the attribute of the axis
including Log X, Log Y, Grid display, and change the height of Y axis.
13.
LOG X and LOG Y (toggle)
This function enables the user to change the X and Y coordinates values
to logarithmic values.
14.
GRID
This function enables the user to display X and Y orthogonal grids on
the curve. Refer to Figure 9.7 for a typical graph window with GRID option.
15.
MODIFY Y AXIS
This function enables the user to specify the height of the Y-axis in
the graph window. Click anywhere along the Y-axis to define a new height. The
user can click Modify Axis again to cancel the operation.
16.
X TITLE
This function allows the user to modify the title of X-axis. It is located
below the X-axis.
17.
Y TITLE
This function allows the user to modify the title of Y-axis. It is located
at the left side of the X-axis.
18.
MIN. MAX. X/Y
This function allows the user to change the range of X and Y
coordinates. The program plots only the portion of the curve(s) within the
defined coordinate range.
19.
NEW VALUE
This function allows the user to modify the Y value of a selected
point. Click a point on a curve to display the x and y coordinates in the
corresponding text boxes. The value in X text box cannot be modified. The user
can modify the value in the Y text box.
20.
MODIFY Y
This function allows the user to modify Y value. After the user selects
a point on a curve, the Modify Y button is pitched on. The user can click any
location to modify Y value by the mouse, and click the Modify Y button again to
exit the operation.