Back|Forward

DCL:GRPH1:SWPACK: Machine-Dependent Routines:Explanation of Subroutines: Graphics Routines

7.4.4 SWGTON

1.

Function

Performs hard fill.

2.

Call

CALL SWGTON(NP,WPX,WPY,ITPAT)

3.

Explanation of Arguments

NP	(I)	The size of array WPX,WPY. (i)
WPX	(R)	The X coordinate of the boundary of a fill area. (i)
WPY	(R)	The Y coordinate of the boundary of a fill area. (i)
IPAT	(I)	The fill pattern index. (i)

4.

Notes

(a)

The pattern index is a 5-digit number, and the first 2 digits corresponds to color, the 3rd digit corresponds to the type of pattern (dots or lines), and the 4th corresponds to line width, and the final digit corresponds to the dot or line density.