Parameter Interaction In Labeling Commands - HP 7470A Interfacing And Programming Manual

of CP instructions is the pen position at the completion of the user
defined character, one character-space field to the right of the origin of
the user defined character.
"SP1;PH1ooo,5ooo;9I.25,.4"
"Uco,4,93,1.75,o,1.5,4,3,—a,3,a,3,—a,3,3,3,—a,1.5,4,1.75,o;"
"CP3.25,0;LB1000 ohmsx"
"\/\/\r 1000 ohms
User defined characters are drawn using the current character size,
slant, and direction. It is also possible to change the size of a user
defined character by changing each X— or Y—increment p arameter by a
constant multiple. Send the following commands to the plotter. The
resistor drawn will be twice the size of the resistor drawn in the last
example.
"SP1;PR1000,4500;SI.25,.4"
"uco,a,9a,3.5,o,3,a,s,—1s,5,15,5,-15,5,15,5,—15,3,a,3.5,o;"
"\/\/\r
Parameter Interaction in
Labeling Commands
There are three factors which interact and affect the direction and
mirroring of labels; the label direction as specified by D1 or DR com­
mands or default direction, the sign of the parameters for the size com­
mands SI or SR, and the relative positions of P1 and P2. These inter­
actions are complex. This section considers the four possible combina­
tions of D1, DR, SI, and SR and illustrates the effects of various
parameters and settings of P1 and P2 on labels.
The labels used in the illustrations are the commands which cause the
direction, size, and mirroring of the label. All descriptions are in terms
of the standard X,Y coordinate system. An arrow is shown for each
label; this arrow is the baseline along which labeling occurs and shows
the left-to-right direction that is the standard direction of a label with­
out mirroring. The same P1,P2 area, that area set by default P1 and P2,
is always used. During the course of the illustrations, P1 and P2 are
assigned to opposite corners of this rectangle in all possible ways. The
values used for X—coordinatesof P1 and P2 are 250 and 10 250; the
values used for the Y-coordinates of P1 and P2 are 279 and 7479.
LABELING 5-21