163 lines
19 KiB
HTML
163 lines
19 KiB
HTML
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<div style="font-weight: bold;margin-left:15px;">example3.4.1.php</div><link rel="stylesheet" href="../phphl.css" type="text/css"><div class="hl-main"><table class="hl-table" width="100%"><tr><td class="hl-gutter" align="right" valign="top"><pre>1
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</pre></td><td class="hl-main" valign="top"><pre><span class="hl-inlinetags"><?php</span><span class="hl-code"> </span><span class="hl-comment">//</span><span class="hl-comment"> content="text/plain; charset=utf-8"</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-reserved">require_once</span><span class="hl-code"> </span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">jpgraph/jpgraph.php</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-reserved">require_once</span><span class="hl-code"> </span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">jpgraph/jpgraph_line.php</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> A function to return the Roman Numeral, given an integer</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-reserved">function</span><span class="hl-code"> </span><span class="hl-identifier">numberToRoman</span><span class="hl-brackets">(</span><span class="hl-var">$aNum</span><span class="hl-brackets">)</span><span class="hl-code">
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</span><span class="hl-brackets">{</span><span class="hl-code">
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</span><span class="hl-comment">//</span><span class="hl-comment"> Make sure that we only use the integer portion of the value</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$n</span><span class="hl-code"> = </span><span class="hl-identifier">intval</span><span class="hl-brackets">(</span><span class="hl-var">$aNum</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$result</span><span class="hl-code"> = </span><span class="hl-quotes">'</span><span class="hl-quotes">'</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Declare a lookup array that we will use to traverse the number:</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$lookup</span><span class="hl-code"> = </span><span class="hl-reserved">array</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">M</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">1000</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">CM</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">900</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">D</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">500</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">CD</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">400</span><span class="hl-code">,
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</span><span class="hl-quotes">'</span><span class="hl-string">C</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">100</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">XC</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">90</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">L</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">50</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">XL</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">40</span><span class="hl-code">,
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</span><span class="hl-quotes">'</span><span class="hl-string">X</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">10</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">IX</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">9</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">V</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">5</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">IV</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">4</span><span class="hl-code">, </span><span class="hl-quotes">'</span><span class="hl-string">I</span><span class="hl-quotes">'</span><span class="hl-code"> => </span><span class="hl-number">1</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-reserved">foreach</span><span class="hl-code"> </span><span class="hl-brackets">(</span><span class="hl-var">$lookup</span><span class="hl-code"> </span><span class="hl-reserved">as</span><span class="hl-code"> </span><span class="hl-var">$roman</span><span class="hl-code"> => </span><span class="hl-var">$value</span><span class="hl-brackets">)</span><span class="hl-code">
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</span><span class="hl-brackets">{</span><span class="hl-code">
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</span><span class="hl-comment">//</span><span class="hl-comment"> Determine the number of matches</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$matches</span><span class="hl-code"> = </span><span class="hl-identifier">intval</span><span class="hl-brackets">(</span><span class="hl-var">$n</span><span class="hl-code"> / </span><span class="hl-var">$value</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Store that many characters</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$result</span><span class="hl-code"> .= </span><span class="hl-identifier">str_repeat</span><span class="hl-brackets">(</span><span class="hl-var">$roman</span><span class="hl-code">, </span><span class="hl-var">$matches</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Substract that from the number</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$n</span><span class="hl-code"> = </span><span class="hl-var">$n</span><span class="hl-code"> % </span><span class="hl-var">$value</span><span class="hl-code">;
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</span><span class="hl-brackets">}</span><span class="hl-code">
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</span><span class="hl-comment">//</span><span class="hl-comment"> The Roman numeral should be built, return it</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-reserved">return</span><span class="hl-code"> </span><span class="hl-var">$result</span><span class="hl-code">;
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</span><span class="hl-brackets">}</span><span class="hl-code">
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</span><span class="hl-reserved">function</span><span class="hl-code"> </span><span class="hl-identifier">formatCallback</span><span class="hl-brackets">(</span><span class="hl-var">$aVal</span><span class="hl-brackets">)</span><span class="hl-code"> </span><span class="hl-brackets">{</span><span class="hl-code">
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</span><span class="hl-reserved">return</span><span class="hl-code"> </span><span class="hl-quotes">'</span><span class="hl-string">(</span><span class="hl-quotes">'</span><span class="hl-code">.</span><span class="hl-identifier">numberToRoman</span><span class="hl-brackets">(</span><span class="hl-var">$aVal</span><span class="hl-brackets">)</span><span class="hl-code">.</span><span class="hl-quotes">'</span><span class="hl-string">)</span><span class="hl-quotes">'</span><span class="hl-code">;
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</span><span class="hl-brackets">}</span><span class="hl-code">
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</span><span class="hl-comment">//</span><span class="hl-comment"> Some (random) data</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$ydata</span><span class="hl-code"> = </span><span class="hl-reserved">array</span><span class="hl-brackets">(</span><span class="hl-number">11</span><span class="hl-code">,</span><span class="hl-number">3</span><span class="hl-code">,</span><span class="hl-number">8</span><span class="hl-code">,</span><span class="hl-number">12</span><span class="hl-code">,</span><span class="hl-number">5</span><span class="hl-code">,</span><span class="hl-number">1</span><span class="hl-code">,</span><span class="hl-number">9</span><span class="hl-code">,</span><span class="hl-number">13</span><span class="hl-code">,</span><span class="hl-number">5</span><span class="hl-code">,</span><span class="hl-number">7</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Size of the overall graph</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$width</span><span class="hl-code">=</span><span class="hl-number">350</span><span class="hl-code">;
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</span><span class="hl-var">$height</span><span class="hl-code">=</span><span class="hl-number">250</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Create the graph and set a scale.</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-comment">//</span><span class="hl-comment"> These two calls are always required</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$graph</span><span class="hl-code"> = </span><span class="hl-reserved">new</span><span class="hl-code"> </span><span class="hl-identifier">Graph</span><span class="hl-brackets">(</span><span class="hl-var">$width</span><span class="hl-code">,</span><span class="hl-var">$height</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">SetScale</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">intlin</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">SetShadow</span><span class="hl-brackets">(</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Setup margin and titles</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">SetMargin</span><span class="hl-brackets">(</span><span class="hl-number">40</span><span class="hl-code">,</span><span class="hl-number">20</span><span class="hl-code">,</span><span class="hl-number">20</span><span class="hl-code">,</span><span class="hl-number">40</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">title</span><span class="hl-code">-></span><span class="hl-identifier">Set</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">Calls per operator</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">subtitle</span><span class="hl-code">-></span><span class="hl-identifier">Set</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">(March 12, 2008)</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">xaxis</span><span class="hl-code">-></span><span class="hl-identifier">title</span><span class="hl-code">-></span><span class="hl-identifier">Set</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">Operator</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">yaxis</span><span class="hl-code">-></span><span class="hl-identifier">title</span><span class="hl-code">-></span><span class="hl-identifier">Set</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string"># of calls</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">yaxis</span><span class="hl-code">-></span><span class="hl-identifier">title</span><span class="hl-code">-></span><span class="hl-identifier">SetFont</span><span class="hl-brackets">(</span><span class="hl-code"> </span><span class="hl-identifier">FF_FONT1</span><span class="hl-code"> , </span><span class="hl-identifier">FS_BOLD</span><span class="hl-code"> </span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">xaxis</span><span class="hl-code">-></span><span class="hl-identifier">title</span><span class="hl-code">-></span><span class="hl-identifier">SetFont</span><span class="hl-brackets">(</span><span class="hl-code"> </span><span class="hl-identifier">FF_FONT1</span><span class="hl-code"> , </span><span class="hl-identifier">FS_BOLD</span><span class="hl-code"> </span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">yaxis</span><span class="hl-code">-></span><span class="hl-identifier">SetColor</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">blue</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Create the linear plot</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$lineplot</span><span class="hl-code">=</span><span class="hl-reserved">new</span><span class="hl-code"> </span><span class="hl-identifier">LinePlot</span><span class="hl-brackets">(</span><span class="hl-var">$ydata</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">SetColor</span><span class="hl-brackets">(</span><span class="hl-code"> </span><span class="hl-quotes">'</span><span class="hl-string">blue</span><span class="hl-quotes">'</span><span class="hl-code"> </span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">SetWeight</span><span class="hl-brackets">(</span><span class="hl-code"> </span><span class="hl-number">2</span><span class="hl-code"> </span><span class="hl-brackets">)</span><span class="hl-code">; </span><span class="hl-comment">//</span><span class="hl-comment"> Two pixel wide</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">mark</span><span class="hl-code">-></span><span class="hl-identifier">SetType</span><span class="hl-brackets">(</span><span class="hl-identifier">MARK_UTRIANGLE</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">mark</span><span class="hl-code">-></span><span class="hl-identifier">SetColor</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">blue</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">mark</span><span class="hl-code">-></span><span class="hl-identifier">SetFillColor</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">red</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">value</span><span class="hl-code">-></span><span class="hl-identifier">Show</span><span class="hl-brackets">(</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">value</span><span class="hl-code">-></span><span class="hl-identifier">SetFont</span><span class="hl-brackets">(</span><span class="hl-identifier">FF_ARIAL</span><span class="hl-code">,</span><span class="hl-identifier">FS_BOLD</span><span class="hl-code">,</span><span class="hl-number">10</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">value</span><span class="hl-code">-></span><span class="hl-identifier">SetColor</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">darkred</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-var">$lineplot</span><span class="hl-code">-></span><span class="hl-identifier">value</span><span class="hl-code">-></span><span class="hl-identifier">SetFormatCallback</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">formatCallback</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Add the plot to the graph</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">Add</span><span class="hl-brackets">(</span><span class="hl-var">$lineplot</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-comment">//</span><span class="hl-comment"> Display the graph</span><span class="hl-comment"></span><span class="hl-code">
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</span><span class="hl-var">$graph</span><span class="hl-code">-></span><span class="hl-identifier">Stroke</span><span class="hl-brackets">(</span><span class="hl-brackets">)</span><span class="hl-code">;
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</span><span class="hl-inlinetags">?></span></pre></td></tr></table></div>
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