Rockwell Automation 5370-UPK CVIM USER-PAK Option User Manual

Page 93

Chapter 8

Defining Strings for Serial Ports and Viewports

8–17

Draw Line Code Position Priority: The draw line coordinates have priority
over the string

Pick & Place

function. The position of any lines drawn, and

the position of any subsequent part of the string positioned by the draw line
parameters, are not affected by string

Pick & Place

function, unless the

symbol is used (see below).

Using the

Symbol

The

symbol can be used as a parameter for either or both of the starting

point coordinates (the

and

values). The

symbol causes the respective

value to be determined by the current cursor position.

For example, this code:

D*,* 50,0

causes a horizontal line to be drawn, 50 pixels in length, with the starting
point determined by the current cursor position. Since the initial cursor
position is as set by the string

Pick & Place

function, you would set the

line’s starting point, in this case, using

Pick & Place

Line drawn

Viewport border

Starting point
determined by
Pick & Place

Using an Offset: You can include an offset with the

symbol by placing a

“+” or “–” sign after the

, followed by the desired offset value. For

example, the code

D*–92,*+10 90,0

would draw a line starting at 92

pixels to the left of the cursor position (x =

–92), and 10 pixels down

(y=

+10). The line would be 90 pixels in length, and horizontal (dx = 90, dy

= 0).

This particular draw line code,

D*–92,*+10 90,0

, could be used to

underline previous text in the string, as shown in the example below:

This code:

”PART REJECTED” D*–92,*+10 90,0

Displays this string:

PART REJECTED

Cursor position after displaying

PART REJECTED

Line starting point is 92 pixels left, 10 pixels
down, relative to cursor position

There is often more than one way to achieve a given effect. For example,
this code could also have been used to generate the string display shown
above:

”PART REJECTED” D *–2,*+10 –90,0