TRIANGLE integer-expression, integer-expression, integer-expression, integer-expression, integer-expression, integer-expression

Draws a filled triangle using the current graphics colour (set with GCOL).

Parameters are: x1, y1, x2, y2, x3, y3 - three vertex positions in screen pixels.
The triangle is always filled. There is no outline-only mode.

Examples

Filled triangle

GCOL RGB(255,0,0)

TRIANGLE 60, 30, 180, 50, 90, 160

Two triangles with different colours

GCOL RGB(0,150,255)
TRIANGLE 40, 40, 120, 40, 80, 120
 
GCOL RGB(0,200,80)
TRIANGLE 140, 60, 220, 100, 180, 160

Outline effect using LINE

X1 = 60 : Y1 = 30
X2 = 180 : Y2 = 50
X3 = 90 : Y3 = 160
 
GCOL RGB(255,255,0)
TRIANGLE X1, Y1, X2, Y2, X3, Y3
 
GCOL RGB(0,0,0)
LINE X1, Y1, X2, Y2
LINE X2, Y2, X3, Y3
LINE X3, Y3, X1, Y1

Notes

Coordinates are in screen pixels; (0,0) is the top-left corner.
Triangles that extend beyond the screen are clipped at the display edge.
Change the drawing colour with GCOL RGB(r,g,b) before calling TRIANGLE.
When AUTOFLIP is FALSE, drawn frames appear only after FLIP.

See also:
GCOL · LINE · RECTANGLE · CIRCLE