Xerox 4450 - Manual (Page 20)

BASIC CONCEPTS
Grids
The location of a form element on a page is specified in terms of
its horizontal and vertical displacement from the form origin. The
units of measurement used to define this displacement can be
any of the following:
• Linear units—inches or centimeters
• Dots—300 per inch
• Xdots—600 per inch
• cpi and lpi—characters per inch horizontally and lines per
inch vertically.
x and y coordinates
The y coordinate describes the vertical position on a grid. The x
coordinate describes the horizontal position. When both
coordinates are given together, the y coordinate is always
specified first.
If you draw a horizontal and a vertical line through the form
origin to create x and y coordinates, you would express the
location of the form origin as y=0, x=0.
If you draw more lines to mark horizontal and vertical
measurements away from the form origin so that the lines were
one unit of measurement apart, you create a grid like the one
shown in figure 1-11. You can then position form elements
(lines, boxes, and so on) by specifying a grid location.
Figure 1-11. Form grid
1 3
3
1
2
A
4 2
Form origin
(y=0,x=0)
Y
Character cell origin at
(y=2,x=1)
X
1-12 XEROX 4050/5090/4450/4650 LPS FORMS CREATION GUIDE