triangle - Anobium/Great-Cow-BASIC-Help GitHub Wiki
Triangle:
Triangle(XPixelPosition1, YPixelPosition1, XPixelPosition2, YPixelPosition2, XPixelPosition3, YPixelPosition3 [,Optional LineColour] )
Explanation:
Draws a Triangle on a GLCD at XPixelPositionN, YPixelPositionN.
The constant GLCD_PROTECTOVERRUN can be added to prevent Triangles
from re-drawing at the screen edges. Ensure the GLCD_Width and
GLCD_HEIGHT constants are set correctly when using this additional
constant.
Example:
#include <glcd.h>
Triangle(0, 0, 31, 63, 127, 0 )