displayDensity()
Returns the display's current pixel density.
Examples

function setup()
size(100,100)
-- Create a canvas and draw
-- a circle.
background(200)
circle(50, 50, 70)
describe('A fuzzy white circle drawn on a gray background. The circle becomes sharper when the mouse is pressed.')
end
function mousePressed()
-- Get the current display density.
local d = displayDensity()
-- And print it out
print(d)
-- Paint the background and
-- draw a circle.
background(200)
circle(50, 50, 70)
end
Returns
Number: current pixel density of the display