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13 lines
309 B
Ruby
13 lines
309 B
Ruby
class UtilityController < ApplicationController
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# translates TMS formats from one ordering to another
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def tms_alt
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# /z/x/y.png
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# /z/x/y.png
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# /z/x/(2*z-y-1).png
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y = 2**params[:z].to_i-params[:y].to_i-1
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redirect_to "/tms/#{params[:id]}/#{params[:z]}/#{params[:x]}/#{y}.png"
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end
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end
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