HP Prime Graphing Wireless Calculator - Manual (Page 282)

278 Programming in HP PPL
Returns an integer number that can be used as the color
parameter for a drawing function, based on Red-, Green-
and Blue-component values (each 0 to 255).
If Alpha is greater than 128, returns the color flagged as
transparent. There is no alpha channel blending on Prime.
Examples:
RGB(255,0,128) returns 16711808
RECT(RGB(0,0,255)) makes a blue screen
LINE(0,0,8,8,RGB(0,255,0)) draws a green line
Pixels and Cartesian
ARC_P
ARC Syntax; ARC(G, x, y, r [ , a1, a2, c])
ARC_P(G, x, y, r [ , a1, a2, c])
Draws an arc or circle on G, centered on point x,y, with
radius r and color c starting at angle a1 and ending on
angle a2.
G can be any of the graphics variables and is optional.
The default is G0
r is given in pixels.
c is optional and if not specified black is used. It should
be specified in this way: #RRGGBB (in the same way as
a color is specified in HTML).
a1 and a2 follow the current angle mode and are
optional. The default is a full circle.
Example:
ARC(0,0,60,0, π,RGB(255,0,0)) draws a red
semicircle with center at (0,0)—using the current Plot
Setup window—and with a radius of 60 pixels. The
semicircle is drawn counterclockwise from 0 to π.
BLIT_P
BLIT Syntax: BLIT([trgtGRB, dx1, dy1, dx2, dy2],
srcGRB [ ,sx1, sy1, sx2, sy2, c])
BLIT_P ([trgtGRB, dx1, dy1, dx2, dy2],
srcGRB [ ,sx1, sy1, sx2, sy2, c])