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axis.html
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axis.html
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<!DOCTYPE html> <html> <head> <title>axis.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <div id="jump_to"> Jump To … <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="behavior.html"> behavior.js </a> <a class="source" href="drag.html"> drag.js </a> <a class="source" href="zoom.html"> zoom.js </a> <a class="source" href="date.html"> date.js </a> <a class="source" href="style.html"> style.js </a> <a class="source" href="array.html"> array.js </a> <a class="source" href="ascending.html"> ascending.js </a> <a class="source" href="bisect.html"> bisect.js </a> <a class="source" href="class.html"> class.js </a> <a class="source" href="collapse.html"> collapse.js </a> <a class="source" href="core.html"> core.js </a> <a class="source" href="descending.html"> descending.js </a> <a class="source" href="dispatch.html"> 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class="source" href="brush.html"> brush.js </a> <a class="source" href="chord.html"> chord.js </a> <a class="source" href="diagonal-radial.html"> diagonal-radial.js </a> <a class="source" href="diagonal.html"> diagonal.js </a> <a class="source" href="line-radial.html"> line-radial.js </a> <a class="source" href="line.html"> line.js </a> <a class="source" href="mouse.html"> mouse.js </a> <a class="source" href="svg.html"> svg.js </a> <a class="source" href="symbol.html"> symbol.js </a> <a class="source" href="touches.html"> touches.js </a> <a class="source" href="day.html"> day.js </a> <a class="source" href="format-iso.html"> format-iso.js </a> <a class="source" href="format-utc.html"> format-utc.js </a> <a class="source" href="format.html"> format.js </a> <a class="source" href="hour.html"> hour.js </a> <a class="source" href="interval.html"> interval.js </a> <a class="source" href="minute.html"> minute.js </a> <a class="source" href="month.html"> month.js </a> <a class="source" href="scale-utc.html"> scale-utc.js </a> <a class="source" href="scale.html"> scale.js </a> <a class="source" href="second.html"> second.js </a> <a class="source" href="time.html"> time.js </a> <a class="source" href="week.html"> week.js </a> <a class="source" href="year.html"> year.js </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> axis.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">¶</a> </div> </td> <td class="code"> <div class="highlight"><pre><span class="nx">d3</span><span class="p">.</span><span class="nx">svg</span><span class="p">.</span><span class="nx">axis</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">scale</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">scale</span><span class="p">.</span><span class="nx">linear</span><span class="p">(),</span>
<span class="nx">orient</span> <span class="o">=</span> <span class="s2">"bottom"</span><span class="p">,</span>
<span class="nx">tickMajorSize</span> <span class="o">=</span> <span class="mi">6</span><span class="p">,</span>
<span class="nx">tickMinorSize</span> <span class="o">=</span> <span class="mi">6</span><span class="p">,</span>
<span class="nx">tickEndSize</span> <span class="o">=</span> <span class="mi">6</span><span class="p">,</span>
<span class="nx">tickPadding</span> <span class="o">=</span> <span class="mi">3</span><span class="p">,</span>
<span class="nx">tickArguments_</span> <span class="o">=</span> <span class="p">[</span><span class="mi">10</span><span class="p">],</span>
<span class="nx">tickValues</span> <span class="o">=</span> <span class="kc">null</span><span class="p">,</span>
<span class="nx">tickFormat_</span><span class="p">,</span>
<span class="nx">tickSubdivide</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="kd">function</span> <span class="nx">axis</span><span class="p">(</span><span class="nx">g</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">g</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">g</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="k">this</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">¶</a> </div> <p>Ticks, or domain values for ordinal scales.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">ticks</span> <span class="o">=</span> <span class="nx">tickValues</span> <span class="o">==</span> <span class="kc">null</span> <span class="o">?</span> <span class="p">(</span><span class="nx">scale</span><span class="p">.</span><span class="nx">ticks</span> <span class="o">?</span> <span class="nx">scale</span><span class="p">.</span><span class="nx">ticks</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="nx">scale</span><span class="p">,</span> <span class="nx">tickArguments_</span><span class="p">)</span> <span class="o">:</span> <span class="nx">scale</span><span class="p">.</span><span class="nx">domain</span><span class="p">())</span> <span class="o">:</span> <span class="nx">tickValues</span><span class="p">,</span>
<span class="nx">tickFormat</span> <span class="o">=</span> <span class="nx">tickFormat_</span> <span class="o">==</span> <span class="kc">null</span> <span class="o">?</span> <span class="p">(</span><span class="nx">scale</span><span class="p">.</span><span class="nx">tickFormat</span> <span class="o">?</span> <span class="nx">scale</span><span class="p">.</span><span class="nx">tickFormat</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="nx">scale</span><span class="p">,</span> <span class="nx">tickArguments_</span><span class="p">)</span> <span class="o">:</span> <span class="nb">String</span><span class="p">)</span> <span class="o">:</span> <span class="nx">tickFormat_</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">¶</a> </div> <p>Minor ticks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">subticks</span> <span class="o">=</span> <span class="nx">d3_svg_axisSubdivide</span><span class="p">(</span><span class="nx">scale</span><span class="p">,</span> <span class="nx">ticks</span><span class="p">,</span> <span class="nx">tickSubdivide</span><span class="p">),</span>
<span class="nx">subtick</span> <span class="o">=</span> <span class="nx">g</span><span class="p">.</span><span class="nx">selectAll</span><span class="p">(</span><span class="s2">".minor"</span><span class="p">).</span><span class="nx">data</span><span class="p">(</span><span class="nx">subticks</span><span class="p">,</span> <span class="nb">String</span><span class="p">),</span>
<span class="nx">subtickEnter</span> <span class="o">=</span> <span class="nx">subtick</span><span class="p">.</span><span class="nx">enter</span><span class="p">().</span><span class="nx">insert</span><span class="p">(</span><span class="s2">"line"</span><span class="p">,</span> <span class="s2">"g"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"class"</span><span class="p">,</span> <span class="s2">"tick minor"</span><span class="p">).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="nx">e</span><span class="o">-</span><span class="mi">6</span><span class="p">),</span>
<span class="nx">subtickExit</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">transition</span><span class="p">(</span><span class="nx">subtick</span><span class="p">.</span><span class="nx">exit</span><span class="p">()).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="nx">e</span><span class="o">-</span><span class="mi">6</span><span class="p">).</span><span class="nx">remove</span><span class="p">(),</span>
<span class="nx">subtickUpdate</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">transition</span><span class="p">(</span><span class="nx">subtick</span><span class="p">).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">¶</a> </div> <p>Major ticks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">tick</span> <span class="o">=</span> <span class="nx">g</span><span class="p">.</span><span class="nx">selectAll</span><span class="p">(</span><span class="s2">"g"</span><span class="p">).</span><span class="nx">data</span><span class="p">(</span><span class="nx">ticks</span><span class="p">,</span> <span class="nb">String</span><span class="p">),</span>
<span class="nx">tickEnter</span> <span class="o">=</span> <span class="nx">tick</span><span class="p">.</span><span class="nx">enter</span><span class="p">().</span><span class="nx">insert</span><span class="p">(</span><span class="s2">"g"</span><span class="p">,</span> <span class="s2">"path"</span><span class="p">).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="nx">e</span><span class="o">-</span><span class="mi">6</span><span class="p">),</span>
<span class="nx">tickExit</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">transition</span><span class="p">(</span><span class="nx">tick</span><span class="p">.</span><span class="nx">exit</span><span class="p">()).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="nx">e</span><span class="o">-</span><span class="mi">6</span><span class="p">).</span><span class="nx">remove</span><span class="p">(),</span>
<span class="nx">tickUpdate</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">transition</span><span class="p">(</span><span class="nx">tick</span><span class="p">).</span><span class="nx">style</span><span class="p">(</span><span class="s2">"opacity"</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="nx">tickTransform</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">¶</a> </div> <p>Domain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">range</span> <span class="o">=</span> <span class="nx">d3_scaleRange</span><span class="p">(</span><span class="nx">scale</span><span class="p">),</span>
<span class="nx">path</span> <span class="o">=</span> <span class="nx">g</span><span class="p">.</span><span class="nx">selectAll</span><span class="p">(</span><span class="s2">".domain"</span><span class="p">).</span><span class="nx">data</span><span class="p">([</span><span class="mi">0</span><span class="p">]),</span>
<span class="nx">pathEnter</span> <span class="o">=</span> <span class="nx">path</span><span class="p">.</span><span class="nx">enter</span><span class="p">().</span><span class="nx">append</span><span class="p">(</span><span class="s2">"path"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"class"</span><span class="p">,</span> <span class="s2">"domain"</span><span class="p">),</span>
<span class="nx">pathUpdate</span> <span class="o">=</span> <span class="nx">d3</span><span class="p">.</span><span class="nx">transition</span><span class="p">(</span><span class="nx">path</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">¶</a> </div> <p>Stash a snapshot of the new scale, and retrieve the old snapshot.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">scale1</span> <span class="o">=</span> <span class="nx">scale</span><span class="p">.</span><span class="nx">copy</span><span class="p">(),</span>
<span class="nx">scale0</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">__chart__</span> <span class="o">||</span> <span class="nx">scale1</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">__chart__</span> <span class="o">=</span> <span class="nx">scale1</span><span class="p">;</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">append</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"class"</span><span class="p">,</span> <span class="s2">"tick"</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">append</span><span class="p">(</span><span class="s2">"text"</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">text</span><span class="p">(</span><span class="nx">tickFormat</span><span class="p">);</span>
<span class="k">switch</span> <span class="p">(</span><span class="nx">orient</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="s2">"bottom"</span><span class="o">:</span> <span class="p">{</span>
<span class="nx">tickTransform</span> <span class="o">=</span> <span class="nx">d3_svg_axisX</span><span class="p">;</span>
<span class="nx">subtickEnter</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">subtickUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"dy"</span><span class="p">,</span> <span class="s2">".71em"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"text-anchor"</span><span class="p">,</span> <span class="s2">"middle"</span><span class="p">);</span>
<span class="nx">pathUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"d"</span><span class="p">,</span> <span class="s2">"M"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s2">","</span> <span class="o">+</span> <span class="nx">tickEndSize</span> <span class="o">+</span> <span class="s2">"V0H"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"V"</span> <span class="o">+</span> <span class="nx">tickEndSize</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">case</span> <span class="s2">"top"</span><span class="o">:</span> <span class="p">{</span>
<span class="nx">tickTransform</span> <span class="o">=</span> <span class="nx">d3_svg_axisX</span><span class="p">;</span>
<span class="nx">subtickEnter</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">subtickUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="o">-</span><span class="p">(</span><span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">));</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="o">-</span><span class="p">(</span><span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">)).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"dy"</span><span class="p">,</span> <span class="s2">"0em"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"text-anchor"</span><span class="p">,</span> <span class="s2">"middle"</span><span class="p">);</span>
<span class="nx">pathUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"d"</span><span class="p">,</span> <span class="s2">"M"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s2">","</span> <span class="o">+</span> <span class="o">-</span><span class="nx">tickEndSize</span> <span class="o">+</span> <span class="s2">"V0H"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"V"</span> <span class="o">+</span> <span class="o">-</span><span class="nx">tickEndSize</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">case</span> <span class="s2">"left"</span><span class="o">:</span> <span class="p">{</span>
<span class="nx">tickTransform</span> <span class="o">=</span> <span class="nx">d3_svg_axisY</span><span class="p">;</span>
<span class="nx">subtickEnter</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">subtickUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMinorSize</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="o">-</span><span class="p">(</span><span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">));</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="o">-</span><span class="nx">tickMajorSize</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="o">-</span><span class="p">(</span><span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">)).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"dy"</span><span class="p">,</span> <span class="s2">".32em"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"text-anchor"</span><span class="p">,</span> <span class="s2">"end"</span><span class="p">);</span>
<span class="nx">pathUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"d"</span><span class="p">,</span> <span class="s2">"M"</span> <span class="o">+</span> <span class="o">-</span><span class="nx">tickEndSize</span> <span class="o">+</span> <span class="s2">","</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"H0V"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"H"</span> <span class="o">+</span> <span class="o">-</span><span class="nx">tickEndSize</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">case</span> <span class="s2">"right"</span><span class="o">:</span> <span class="p">{</span>
<span class="nx">tickTransform</span> <span class="o">=</span> <span class="nx">d3_svg_axisY</span><span class="p">;</span>
<span class="nx">subtickEnter</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="nx">tickMinorSize</span><span class="p">);</span>
<span class="nx">subtickUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="nx">tickMinorSize</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="nx">tickMajorSize</span><span class="p">);</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"line"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x2"</span><span class="p">,</span> <span class="nx">tickMajorSize</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y2"</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">select</span><span class="p">(</span><span class="s2">"text"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"x"</span><span class="p">,</span> <span class="nb">Math</span><span class="p">.</span><span class="nx">max</span><span class="p">(</span><span class="nx">tickMajorSize</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">tickPadding</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"y"</span><span class="p">,</span> <span class="mi">0</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"dy"</span><span class="p">,</span> <span class="s2">".32em"</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"text-anchor"</span><span class="p">,</span> <span class="s2">"start"</span><span class="p">);</span>
<span class="nx">pathUpdate</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"d"</span><span class="p">,</span> <span class="s2">"M"</span> <span class="o">+</span> <span class="nx">tickEndSize</span> <span class="o">+</span> <span class="s2">","</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"H0V"</span> <span class="o">+</span> <span class="nx">range</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"H"</span> <span class="o">+</span> <span class="nx">tickEndSize</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">¶</a> </div> <p>For quantitative scales:
- enter new ticks from the old scale
- exit old ticks to the new scale</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="nx">scale</span><span class="p">.</span><span class="nx">ticks</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale0</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale1</span><span class="p">);</span>
<span class="nx">tickExit</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale1</span><span class="p">);</span>
<span class="nx">subtickEnter</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale0</span><span class="p">);</span>
<span class="nx">subtickUpdate</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale1</span><span class="p">);</span>
<span class="nx">subtickExit</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">scale1</span><span class="p">);</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-8">¶</a> </div> <p>For ordinal scales:
- any entering ticks are undefined in the old scale
- any exiting ticks are undefined in the new scale
Therefore, we only need to transition updating ticks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">else</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">dx</span> <span class="o">=</span> <span class="nx">scale1</span><span class="p">.</span><span class="nx">rangeBand</span><span class="p">()</span> <span class="o">/</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">x</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="p">{</span> <span class="k">return</span> <span class="nx">scale1</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="o">+</span> <span class="nx">dx</span><span class="p">;</span> <span class="p">};</span>
<span class="nx">tickEnter</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">x</span><span class="p">);</span>
<span class="nx">tickUpdate</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">tickTransform</span><span class="p">,</span> <span class="nx">x</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">scale</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">scale</span><span class="p">;</span>
<span class="nx">scale</span> <span class="o">=</span> <span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">orient</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">orient</span><span class="p">;</span>
<span class="nx">orient</span> <span class="o">=</span> <span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">ticks</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickArguments_</span><span class="p">;</span>
<span class="nx">tickArguments_</span> <span class="o">=</span> <span class="nx">arguments</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">tickValues</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickValues</span><span class="p">;</span>
<span class="nx">tickValues</span> <span class="o">=</span> <span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">tickFormat</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickFormat_</span><span class="p">;</span>
<span class="nx">tickFormat_</span> <span class="o">=</span> <span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">tickSize</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">,</span> <span class="nx">y</span><span class="p">,</span> <span class="nx">z</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickMajorSize</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">n</span> <span class="o">=</span> <span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span>
<span class="nx">tickMajorSize</span> <span class="o">=</span> <span class="o">+</span><span class="nx">x</span><span class="p">;</span>
<span class="nx">tickMinorSize</span> <span class="o">=</span> <span class="nx">n</span> <span class="o">></span> <span class="mi">1</span> <span class="o">?</span> <span class="o">+</span><span class="nx">y</span> <span class="o">:</span> <span class="nx">tickMajorSize</span><span class="p">;</span>
<span class="nx">tickEndSize</span> <span class="o">=</span> <span class="nx">n</span> <span class="o">></span> <span class="mi">0</span> <span class="o">?</span> <span class="o">+</span><span class="nx">arguments</span><span class="p">[</span><span class="nx">n</span><span class="p">]</span> <span class="o">:</span> <span class="nx">tickMajorSize</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">tickPadding</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickPadding</span><span class="p">;</span>
<span class="nx">tickPadding</span> <span class="o">=</span> <span class="o">+</span><span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="nx">axis</span><span class="p">.</span><span class="nx">tickSubdivide</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="k">return</span> <span class="nx">tickSubdivide</span><span class="p">;</span>
<span class="nx">tickSubdivide</span> <span class="o">=</span> <span class="o">+</span><span class="nx">x</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="k">return</span> <span class="nx">axis</span><span class="p">;</span>
<span class="p">};</span>
<span class="kd">function</span> <span class="nx">d3_svg_axisX</span><span class="p">(</span><span class="nx">selection</span><span class="p">,</span> <span class="nx">x</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">selection</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"transform"</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="p">{</span> <span class="k">return</span> <span class="s2">"translate("</span> <span class="o">+</span> <span class="nx">x</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="o">+</span> <span class="s2">",0)"</span><span class="p">;</span> <span class="p">});</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">d3_svg_axisY</span><span class="p">(</span><span class="nx">selection</span><span class="p">,</span> <span class="nx">y</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">selection</span><span class="p">.</span><span class="nx">attr</span><span class="p">(</span><span class="s2">"transform"</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="p">{</span> <span class="k">return</span> <span class="s2">"translate(0,"</span> <span class="o">+</span> <span class="nx">y</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span> <span class="o">+</span> <span class="s2">")"</span><span class="p">;</span> <span class="p">});</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">d3_svg_axisSubdivide</span><span class="p">(</span><span class="nx">scale</span><span class="p">,</span> <span class="nx">ticks</span><span class="p">,</span> <span class="nx">m</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">subticks</span> <span class="o">=</span> <span class="p">[];</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">m</span> <span class="o">&&</span> <span class="nx">ticks</span><span class="p">.</span><span class="nx">length</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">extent</span> <span class="o">=</span> <span class="nx">d3_scaleExtent</span><span class="p">(</span><span class="nx">scale</span><span class="p">.</span><span class="nx">domain</span><span class="p">()),</span>
<span class="nx">subticks</span><span class="p">,</span>
<span class="nx">i</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span>
<span class="nx">n</span> <span class="o">=</span> <span class="nx">ticks</span><span class="p">.</span><span class="nx">length</span><span class="p">,</span>
<span class="nx">d</span> <span class="o">=</span> <span class="p">(</span><span class="nx">ticks</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="nx">ticks</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">/</span> <span class="o">++</span><span class="nx">m</span><span class="p">,</span>
<span class="nx">j</span><span class="p">,</span>
<span class="nx">v</span><span class="p">;</span>
<span class="k">while</span> <span class="p">(</span><span class="o">++</span><span class="nx">i</span> <span class="o"><</span> <span class="nx">n</span><span class="p">)</span> <span class="p">{</span>
<span class="k">for</span> <span class="p">(</span><span class="nx">j</span> <span class="o">=</span> <span class="nx">m</span><span class="p">;</span> <span class="o">--</span><span class="nx">j</span> <span class="o">></span> <span class="mi">0</span><span class="p">;)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">((</span><span class="nx">v</span> <span class="o">=</span> <span class="o">+</span><span class="nx">ticks</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">-</span> <span class="nx">j</span> <span class="o">*</span> <span class="nx">d</span><span class="p">)</span> <span class="o">>=</span> <span class="nx">extent</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="p">{</span>
<span class="nx">subticks</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">v</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">for</span> <span class="p">(</span><span class="o">--</span><span class="nx">i</span><span class="p">,</span> <span class="nx">j</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="o">++</span><span class="nx">j</span> <span class="o"><</span> <span class="nx">m</span> <span class="o">&&</span> <span class="p">(</span><span class="nx">v</span> <span class="o">=</span> <span class="o">+</span><span class="nx">ticks</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">+</span> <span class="nx">j</span> <span class="o">*</span> <span class="nx">d</span><span class="p">)</span> <span class="o"><</span> <span class="nx">extent</span><span class="p">[</span><span class="mi">1</span><span class="p">];)</span> <span class="p">{</span>
<span class="nx">subticks</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">v</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">subticks</span><span class="p">;</span>
<span class="p">}</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>