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DCL:GRPH1:SCPACK: 3-D User Interface:Explanation of Subroutines: Tone Primitives

3.6.2 SCTNU/SCTNV

1.

Function

Fills a triangular area in the U/V-coordinates.

2.

Call

CALL SCTNU(UPX,UPY,UPZ)
CALL SCTNV(VPX,VPY,VPZ)

3.

Explanation of Parameters

UPX, UPY, UPZ	(R)	An array with length 3. Gives the (X, Y, Z) coordinates of the points defining a triangle in UC.
VPX, VPY, VPZ	(R)	An array with length 3. Gives the (X, Y, Z) coordinates of the points defining a triangle in VC.

4.

Notes

(a)

The tone pattern index for filling in the area is set by SCSTNP.