Sha256: bc083e3105e31e5e90839289738174bae7bd39442331273a47ecdbc0b199e3a2
Contents?: true
Size: 933 Bytes
Versions: 5
Compression:
Stored size: 933 Bytes
Contents
#
# Regular Polygon
#
# What is your favorite? Pentagon? Hexagon? Heptagon?
# No? What about the icosagon? The polygon function
# created for this example is capable of drawing any
# regular polygon. Try placing different numbers into the
# polygon function calls within draw to explore.
#
def setup
size(640, 360)
end
def draw
background(102)
push_matrix
translate(width*0.2, height*0.5)
rotate(frame_count / 200.0)
polygon(0, 0, 82, 3);
pop_matrix
push_matrix
translate(width*0.5, height*0.5)
rotate(frame_count / 50.0)
polygon(0, 0, 80, 20);
pop_matrix
push_matrix
translate(width*0.8, height*0.5)
rotate(frame_count / -100.0)
polygon(0, 0, 70, 7);
pop_matrix
end
def polygon(x, y, radius, npoints)
angle = TAU / npoints
begin_shape
(0 .. TAU).step(angle) do |a|
sx = x + cos(a) * radius
sy = y + sin(a) * radius
vertex(sx, sy)
end
end_shape(CLOSE)
end
Version data entries
5 entries across 5 versions & 1 rubygems