Sha256: c2c129f24b595303445d64f93420ad5c2de8bd4606b959ede146536378a5d50d
Contents?: true
Size: 826 Bytes
Versions: 10
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Stored size: 826 Bytes
Contents
# * Demonstrates the syntax for creating a two-dimensional (2D) array.
# * Values in a 2D array are accessed through two index values.
# * 2D arrays are useful for storing images. In this example, each dot
# * is colored in relation to its distance from the center of the image.
def setup
size 640, 360
distances = Array.new( width ) { Array.new( height ) } # [width][height]
stroke_weight 2
max_distance = dist( width/2, height/2, width, height )
width.times do |x|
height.times do |y|
distance = dist( width/2, height/2, x, y )
distances[x][y] = distance / max_distance * 255
end
end
background 0
x = 0
while x < distances.length
y = 0
while y < distances[x].length
stroke distances[x][y]
point x, y
y += 2
end
x += 2
end
end
Version data entries
10 entries across 10 versions & 1 rubygems