10 lines
226 B
Ruby
10 lines
226 B
Ruby
module Jekyll
|
|
module PPI
|
|
def ppi(input, screen_size)
|
|
h, w = input.split("x")
|
|
("%d" % (Math.sqrt((h.to_i ** 2) + (w.to_i ** 2)) / screen_size))
|
|
end
|
|
end
|
|
end
|
|
|
|
Liquid::Template.register_filter(Jekyll::PPI)
|