Segment Highlighting - Tektronix 4106 Operator's Manual

GETTING ACQUAINTED
Segment Highlighting
You can highlight a segment by making it blink on and off. To see the effects of
highlighting , first create another segment that is not a panel:
Draw a circle and include it in a segment by entering :
SGOPEN 3
MOVE 400 ,2600
CURVE ARC , 1400,2600 ,400 ,2600
SGCLOSE
This circle is part of a segment because you opened a segment (with SGOPEN 3)
before you issued the rest of the commands. Since the circle is not a panel , notice
that a MOVE command rather than a BEGINPANEL command specified the
graphics position , that is , the circle's beginning point.
Now, highlight Segment 3 by entering :
SGHIGHLIGHT 3, YES
The circle begins to blink.
Now turn off Segment 3 highlighting and delete Segment 3 by entering :
SGHIGHLIGHT 3,NO
SGDELETE 3
The part of the blue square where the circle overlapped was erased when you
deleted Segment 3, the circle . To redisplay the square in its entirety, update the
screen so the terminal redraws the segments.
Press the GEras key.
In Exercise 6, you will see how the terminal can manage segments in other ways.
Other terminal segment operations are usually directed by an applications
program , so are not described in this manual.
2-1 6
4106/4107/4109 OPERATORS