http://snippets.dzone.com/posts Sun, 27 Jul 2008 03:04:15 GMT DZone Snippets: cloud code http://snippets.dzone.com/posts/show/2251 The options.delete with the default looks mildly interesting. Just wanted to remember that. <br /> <br /><code> <br />def font_size_for_tag_cloud( total, lowest, highest, options={} ) <br /> return nil if total.nil? or highest.nil? or lowest.nil? <br /> # <br /> # options <br /> maxf = options.delete( :max_font_size ) || 14 <br /> minf = options.delete( :min_font_size ) || 11 <br /> maxc = options.delete( :max_color ) || [ 0, 0, 0 ] <br /> minc = options.delete( :min_color ) || [ 156, 156, 156 ] <br /> hide_sizes = options.delete( :hide_sizes ) <br /> hide_colours = options.delete( :hide_colours ) <br /> # <br /> # function to work out rgb values <br /> def rgb_color( a, b, i, x) <br /> return nil if i <= 1 or x <= 1 <br /> if a > b <br /> a-(Math.log(i)*(a-b)/Math.log(x)).floor <br /> else <br /> (Math.log(i)*(b-a)/Math.log(x)+a).floor <br /> end <br /> end <br /> # <br /> # work out colours <br /> c = [] <br /> (0..2).each { |i| c << rgb_color( minc[i], maxc[i], total, highest ) || nil } <br /> colors = c.compact.empty? ? minc.join(',') : c.join(',') <br /> # <br /> # work out the font size <br /> spread = highest.to_f - lowest.to_f <br /> spread = 1.to_f if spread <= 0 <br /> fontspread = maxf.to_f - minf.to_f <br /> fontstep = spread / fontspread <br /> size = ( minf + ( total.to_f / fontstep ) ).to_i <br /> size = maxf if size > maxf <br /> # <br /> # display the results <br /> size_txt = "font-size:#{ size.to_s }px;" unless hide_sizes <br /> color_txt = "color:rgb(#{ colors });" unless hide_colours <br /> return [ size_txt, color_txt ].join <br />end <br /></code> Thu, 06 Jul 2006 17:01:58 GMT http://snippets.dzone.com/posts/show/2251 jnunemaker () http://snippets.dzone.com/posts/show/1658 <br /><code> <br />from appuifw import * <br />app.body = t = Text() <br /> <br />fonts = [u'', u'LatinPlain12', u'LatinBold12', u'LatinBold13', u'LatinBold17', u'LatinBold19'] <br />tags = [(1, "apache"), (1, "array"), (1, "bash"), (1, "c"), (1, "cli"), (1, "csharp"), (1, "css"), <br /> (1, "database"), (1, "date"), (1, "expressionengine"), (1, "file"), (2, "html"), (1, "image"), <br /> (2, "java"), (4, "javascript"), (1, "lighttpd"), (1, "linux"), (1, "mac"), (1, "math"), (1, "mysql"), <br /> (1, "osx"), (1, "perl"), (3, "php"), (1, "pys60"), (5, "python"), (4, "rails"), (1, "regex"), <br /> (4, "ruby"), (1, "rubyonrails"), (1, "series"), (3, "series60"), (1, "servers"), (2, "shell"), (2, "sql"), <br /> (1, "ssh"), (1, "string"), (1, "text"), (1, "time"), (1, "unix"), (1, "web"), (1, "windows"), (1, "xml"),] <br /> <br />for level, tag in tags: <br /> t.font = fonts[level] <br /> t.add(tag + u' ') <br /></code> <br />See <a href=http://www.frappr.com/pys60/photo/1514489>screenshot</a>. <br /> <br />If using font is not enough, we can use other styles or colors. <br />See a <a href=http://bigbold.com/snippets/posts/show/1612>related snippet</a>. Wed, 08 Mar 2006 15:57:17 GMT http://snippets.dzone.com/posts/show/1658 korakot (Korakot Chaovavanich)