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    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Bar Charts</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Line Charts</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Other charts</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Area charts</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Scales</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Scale Options</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Legend</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Title</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Subtitle</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Tooltip</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Scriptable Options</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Animations</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Advanced</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Plugins</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/3.6.0/samples/plugins/chart-area-border.html" aria-current="page" class="active sidebar-link">Chart Area Border</a></li><li><a href="/docs/3.6.0/samples/plugins/quadrants.html" class="sidebar-link">Quadrants</a></li></ul></section></li><li><a href="/docs/3.6.0/samples/utils.html" class="sidebar-link">Utils</a></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="chart-area-border"><a href="#chart-area-border" class="header-anchor">#</a> Chart Area Border</h1> <div class="chart-editor" data-v-365c20ab><div class="chart-view" data-v-365c20ab><canvas></canvas></div> <div class="chart-actions" data-v-2afd21f1 data-v-365c20ab></div> <div class="code-editor" data-v-66ca8197 data-v-365c20ab><div class="code-editor-header" data-v-66ca8197><div class="code-editor-tabs" data-v-66ca8197><button class="code-editor-tab active" data-v-66ca8197>
        config
      </button><button class="code-editor-tab" data-v-66ca8197>
        plugin
      </button><button class="code-editor-tab" data-v-66ca8197>
        data
      </button></div> <div class="code-editor-tools" data-v-66ca8197><!----> <a href="https://github.com/chartjs/Chart.js/blob/master/docs/samples/plugins/chart-area-border.md" title="View on GitHub" target="_blank" class="code-editor-tool fab fa-github fa-lg" data-v-66ca8197></a></div></div> <div class="code-editor-views" data-v-66ca8197><div class="editor-textarea ps" data-v-05f11386 data-v-66ca8197><div class="editor-textarea-content" data-v-05f11386><div class="prism-editor-wrapper" data-v-05f11386><div class="prism-editor__container"><textarea spellCheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">const config = {
  type: 'line',
  data: data,
  options: {
    plugins: {
      chartAreaBorder: {
        borderColor: 'red',
        borderWidth: 2,
        borderDash: [5, 5],
        borderDashOffset: 2,
      }
    }
  },
  plugins: [chartAreaBorder]
};</textarea><pre data-testid="preview" class="prism-editor__editor"><span class="token keyword">const</span> config <span class="token operator">=</span> <span class="token punctuation">{</span>
  type<span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span>
  data<span class="token operator">:</span> data<span class="token punctuation">,</span>
  options<span class="token operator">:</span> <span class="token punctuation">{</span>
    plugins<span class="token operator">:</span> <span class="token punctuation">{</span>
      chartAreaBorder<span class="token operator">:</span> <span class="token punctuation">{</span>
        borderColor<span class="token operator">:</span> <span class="token string">'red'</span><span class="token punctuation">,</span>
        borderWidth<span class="token operator">:</span> <span class="token number">2</span><span class="token punctuation">,</span>
        borderDash<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
        borderDashOffset<span class="token operator">:</span> <span class="token number">2</span><span class="token punctuation">,</span>
      <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  plugins<span class="token operator">:</span> <span class="token punctuation">[</span>chartAreaBorder<span class="token punctuation">]</span>
<span class="token punctuation">}</span><span class="token punctuation">;</span><br /></pre></div></div></div></div><div class="editor-textarea ps" style="display:none;" data-v-05f11386 data-v-66ca8197><div class="editor-textarea-content" data-v-05f11386><div class="prism-editor-wrapper" data-v-05f11386><div class="prism-editor__container"><textarea spellCheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">const chartAreaBorder = {
  id: 'chartAreaBorder',
  beforeDraw(chart, args, options) {
    const {ctx, chartArea: {left, top, width, height}} = chart;
    ctx.save();
    ctx.strokeStyle = options.borderColor;
    ctx.lineWidth = options.borderWidth;
    ctx.setLineDash(options.borderDash || []);
    ctx.lineDashOffset = options.borderDashOffset;
    ctx.strokeRect(left, top, width, height);
    ctx.restore();
  }
};</textarea><pre data-testid="preview" class="prism-editor__editor"><span class="token keyword">const</span> chartAreaBorder <span class="token operator">=</span> <span class="token punctuation">{</span>
  id<span class="token operator">:</span> <span class="token string">'chartAreaBorder'</span><span class="token punctuation">,</span>
  <span class="token function">beforeDraw</span><span class="token punctuation">(</span><span class="token parameter">chart<span class="token punctuation">,</span> args<span class="token punctuation">,</span> options</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> <span class="token punctuation">{</span>ctx<span class="token punctuation">,</span> chartArea<span class="token operator">:</span> <span class="token punctuation">{</span>left<span class="token punctuation">,</span> top<span class="token punctuation">,</span> width<span class="token punctuation">,</span> height<span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">=</span> chart<span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span><span class="token function">save</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span>strokeStyle <span class="token operator">=</span> options<span class="token punctuation">.</span>borderColor<span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span>lineWidth <span class="token operator">=</span> options<span class="token punctuation">.</span>borderWidth<span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span><span class="token function">setLineDash</span><span class="token punctuation">(</span>options<span class="token punctuation">.</span>borderDash <span class="token operator">||</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span>lineDashOffset <span class="token operator">=</span> options<span class="token punctuation">.</span>borderDashOffset<span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span><span class="token function">strokeRect</span><span class="token punctuation">(</span>left<span class="token punctuation">,</span> top<span class="token punctuation">,</span> width<span class="token punctuation">,</span> height<span class="token punctuation">)</span><span class="token punctuation">;</span>
    ctx<span class="token punctuation">.</span><span class="token function">restore</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">;</span><br /></pre></div></div></div></div><div class="editor-textarea ps" style="display:none;" data-v-05f11386 data-v-66ca8197><div class="editor-textarea-content" data-v-05f11386><div class="prism-editor-wrapper" data-v-05f11386><div class="prism-editor__container"><textarea spellCheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const labels = Utils.months({count: 7});
const data = {
  labels: labels,
  datasets: [
    {
      label: 'Dataset 1',
      data: Utils.numbers(NUMBER_CFG),
      borderColor: Utils.CHART_COLORS.red,
      backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
    },
    {
      label: 'Dataset 2',
      data: Utils.numbers(NUMBER_CFG),
      borderColor: Utils.CHART_COLORS.blue,
      backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
    }
  ]
};</textarea><pre data-testid="preview" class="prism-editor__editor"><span class="token keyword">const</span> <span class="token constant">DATA_COUNT</span> <span class="token operator">=</span> <span class="token number">7</span><span class="token punctuation">;</span>
<span class="token keyword">const</span> <span class="token constant">NUMBER_CFG</span> <span class="token operator">=</span> <span class="token punctuation">{</span>count<span class="token operator">:</span> <span class="token constant">DATA_COUNT</span><span class="token punctuation">,</span> min<span class="token operator">:</span> <span class="token operator">-</span><span class="token number">100</span><span class="token punctuation">,</span> max<span class="token operator">:</span> <span class="token number">100</span><span class="token punctuation">}</span><span class="token punctuation">;</span>
<span class="token keyword">const</span> labels <span class="token operator">=</span> Utils<span class="token punctuation">.</span><span class="token function">months</span><span class="token punctuation">(</span><span class="token punctuation">{</span>count<span class="token operator">:</span> <span class="token number">7</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">{</span>
  labels<span class="token operator">:</span> labels<span class="token punctuation">,</span>
  datasets<span class="token operator">:</span> <span class="token punctuation">[</span>
    <span class="token punctuation">{</span>
      label<span class="token operator">:</span> <span class="token string">'Dataset 1'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token function">numbers</span><span class="token punctuation">(</span><span class="token constant">NUMBER_CFG</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
      borderColor<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token constant">CHART_COLORS</span><span class="token punctuation">.</span>red<span class="token punctuation">,</span>
      backgroundColor<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token function">transparentize</span><span class="token punctuation">(</span>Utils<span class="token punctuation">.</span><span class="token constant">CHART_COLORS</span><span class="token punctuation">.</span>red<span class="token punctuation">,</span> <span class="token number">0.5</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
    <span class="token punctuation">{</span>
      label<span class="token operator">:</span> <span class="token string">'Dataset 2'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token function">numbers</span><span class="token punctuation">(</span><span class="token constant">NUMBER_CFG</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
      borderColor<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token constant">CHART_COLORS</span><span class="token punctuation">.</span>blue<span class="token punctuation">,</span>
      backgroundColor<span class="token operator">:</span> Utils<span class="token punctuation">.</span><span class="token function">transparentize</span><span class="token punctuation">(</span>Utils<span class="token punctuation">.</span><span class="token constant">CHART_COLORS</span><span class="token punctuation">.</span>blue<span class="token punctuation">,</span> <span class="token number">0.5</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">]</span>
<span class="token punctuation">}</span><span class="token punctuation">;</span><br /></pre></div></div></div></div></div></div></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated:</span> <span class="time">10/23/2021, 5:21:28 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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