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c4fdfabcc8
g -L frozen_string_literal ext/**/*.rb|xargs ruby -Ka -e'ARGV.each{|fn|puts
fn;open(fn,"r+"){|f|s=f.read.sub(/\A(#!.*\n)?(#.*coding.*\n)?/,"\\&#
frozen_string_literal: false\n");f.rewind;f.write s}}'
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
41 lines
1.2 KiB
Ruby
41 lines
1.2 KiB
Ruby
#!/usr/bin/env ruby
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# frozen_string_literal: false
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require 'tk'
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require 'tkextlib/blt'
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length = 250000
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graph = Tk::BLT::Graph.new(:title=>"Scatter Plot\n#{length} points")
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graph.xaxis_configure(:loose=>false, :title=>'X Axis Label')
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graph.yaxis_configure(:title=>'Y Axis Label')
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graph.legend_configure(:activerelief=>:sunken, :background=>'')
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Tk::BLT::Table.add(Tk.root, graph, [0,0], :fill=>:both)
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v_x = Tk::BLT::Vector.new(length)
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v_y = Tk::BLT::Vector.new(length)
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v_x.expr("random(#{v_x})")
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v_y.expr("random(#{v_y})")
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v_x.sort(v_y)
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plot = Tk::BLT::PlotComponent::Element.new(graph, :symbol=>:square,
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:color=>'green4', :fill=>'green2',
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:linewidth=>0, :outlinewidth=>1,
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:pixels=>4, :label=>'plot',
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:xdata=>v_x, :ydata=>v_y)
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Tk.root.minsize(0, 0)
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#graph.zoom_stack
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#graph.crosshairs
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#graph.active_legend
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#graph.closest_point
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Tk::BLT.zoom_stack(graph)
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Tk::BLT.crosshairs(graph)
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Tk::BLT.active_legend(graph)
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Tk::BLT.closest_point(graph)
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Tk::BLT::Busy.hold(graph)
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Tk.update
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Tk::BLT::Busy.release(graph)
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Tk.mainloop
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