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DCL:GRPH1:SGPACK: User Interface :Explanation of Subroutines: Polymarker Primitives

2.7.4 SGSPMI

1.

Function

Sets the line index of a marker drawn by SGPMU, SGPMV, and SGPMR.

2.

Call

CALL SGSPMI(INDEX)

3.

Explanation of Parameters

INDEX

(I)

The line index for drawing a marker (See Section 1.7. Initial value is 1.)

4.

Notes

(a)

The INDEX must be larger than 1. When INDEX is 0, a message is printed, and no other steps are taken.

(b)

The validity of INDEX is not checked in this routine. It is checked when SGPMU, SGPMV, or SGPMR is called.

(c)

The current line index for the marker can be inquired by

CALL SGQPMI(INDEX).