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HOW TO USE A PLOTIER
HOW TO USE A PLOTTER
You can use a Tektronix 4662 or 4663 Interactive Digital Plotter to create a plot of all
graphics segments that are currently visible and in the current
view.
(Refer to the
discussion on segments and the current view at the beginning of the previous
Rasterizer section .)
1.
Be sure the plotter is connected and configured for the terminal and both are
powered on. (Appendix A tells you how to install and prepare your plotter for
use.)
These procedures assume the plotter is connected to PORT
0.
If it is
connected to PORT
1,
substitute Pt
:
wherever
PO:
is shown in a command
.
2.
Install the plotter pen or
pens,
and place your paper or transparency on the
plotter's surface.
3.
If your plotter has multiple
pens,
you can assign color indices to particular
pens. Here are three
examples:
•
To map all displayed color indices (-1) to a single pen (Pen 1
), enter:
PMAP
P0:,-1,1
•
To map graphics displayed in Index 3 to Pen
2,
enter:
PMAP P0:,3,2
Reissue this command for each index you want to map
.
•
To suppress plotting graphics displayed in a particular
color,
map that index
to Pen 0 - that is, no pen
.
This is useful when you want a multicolored plot but have a plotter with only
one or two
pens.
The following commands illustrate how you can plot one
color at a time.
First
,
map all color indices to Pen
0:
PMAP
P0:,-1,0
Then
,
select a pen
color,
install the pen
,
and map one index to that pen
.
For
example:
PMAP
P0: ,8,1
After plotting (Step 4) the graphics displayed in Index
8,
install a pen with
another
color.
Then map another index to that pen and remap the index just
plotted so that it won 't plot. For example
:
PMAP P0:,5,
1
PMAP P0:,8,0
Replot the image for each index you want to show.
4.
Plot your screen image by entering
:
PLOT TO,PO:
4106/4107/4109 OPERATORS
3-23
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