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<ul class="sidebar-links"><li><a href="/docs/3.9.0/" aria-current="page" class="sidebar-link">Chart.js</a></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Getting Started</span> <span class="arrow right"></span></p> </section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>General</span> <span class="arrow right"></span></p> </section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Configuration</span> <span class="arrow right"></span></p> </section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Chart Types</span> <span class="arrow right"></span></p> </section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Axes</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/3.9.0/axes/" aria-current="page" class="sidebar-link">Axes</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading open"><span>Cartesian</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/3.9.0/axes/cartesian/" aria-current="page" class="active sidebar-link">Cartesian Axes</a></li><li><a href="/docs/3.9.0/axes/cartesian/category.html" class="sidebar-link">Category Axis</a></li><li><a href="/docs/3.9.0/axes/cartesian/linear.html" class="sidebar-link">Linear Axis</a></li><li><a href="/docs/3.9.0/axes/cartesian/logarithmic.html" class="sidebar-link">Logarithmic Axis</a></li><li><a href="/docs/3.9.0/axes/cartesian/time.html" class="sidebar-link">Time Cartesian Axis</a></li><li><a href="/docs/3.9.0/axes/cartesian/timeseries.html" class="sidebar-link">Time Series Axis</a></li></ul></section></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Radial</span> <span class="arrow right"></span></p> </section></li><li><a href="/docs/3.9.0/axes/labelling.html" class="sidebar-link">Labeling Axes</a></li><li><a href="/docs/3.9.0/axes/styling.html" class="sidebar-link">Styling</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Developers</span> <span class="arrow right"></span></p> </section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="cartesian-axes"><a href="#cartesian-axes" class="header-anchor">#</a> Cartesian Axes</h1> <p>Axes that follow a cartesian grid are known as 'Cartesian Axes'. Cartesian axes are used for line, bar, and bubble charts. Four cartesian axes are included in Chart.js by default.</p> <ul><li><a href="/docs/3.9.0/axes/cartesian/linear.html">linear</a></li> <li><a href="/docs/3.9.0/axes/cartesian/logarithmic.html">logarithmic</a></li> <li><a href="/docs/3.9.0/axes/cartesian/category.html">category</a></li> <li><a href="/docs/3.9.0/axes/cartesian/time.html">time</a></li> <li><a href="/docs/3.9.0/axes/cartesian/timeseries.html">timeseries</a></li></ul> <h2 id="visual-components"><a href="#visual-components" class="header-anchor">#</a> Visual Components</h2> <p>A cartesian axis is composed of visual components that can be individually configured. These components are:</p> <ul><li><a href="#border">border</a></li> <li><a href="#grid-lines">grid lines</a></li> <li><a href="#ticks-and-tick-marks">tick</a></li> <li><a href="#ticks-and-tick-marks">tick mark</a></li> <li><a href="#title">title</a></li></ul> <h3 id="border"><a href="#border" class="header-anchor">#</a> Border</h3> <p>The axis border is drawn at the edge of the axis, beside the chart area. In the image below, it is drawn in red.</p> <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> setup </button></div> <div class="code-editor-tools" data-v-66ca8197> <a href="https://github.com/chartjs/Chart.js/blob/master/docs/axes/cartesian/index.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, options: { scales: { x: { grid: { borderColor: 'red' } } } } };</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> <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span> data<span class="token punctuation">,</span> <span class="token literal-property property">options</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">scales</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">x</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">grid</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">borderColor</span><span class="token operator">:</span> <span class="token string">'red'</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 labels = Utils.months({count: 7}); const data = { labels: labels, datasets: [{ label: 'My First dataset', backgroundColor: 'rgba(54, 162, 235, 0.5)', borderColor: 'rgb(54, 162, 235)', borderWidth: 1, data: [10, 20, 30, 40, 50, 0, 5], }] };</textarea><pre data-testid="preview" class="prism-editor__editor"><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><span class="token literal-property property">count</span><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> <span class="token literal-property property">labels</span><span class="token operator">:</span> labels<span class="token punctuation">,</span> <span class="token literal-property property">datasets</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token punctuation">{</span> <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token string">'My First dataset'</span><span class="token punctuation">,</span> <span class="token literal-property property">backgroundColor</span><span class="token operator">:</span> <span class="token string">'rgba(54, 162, 235, 0.5)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderColor</span><span class="token operator">:</span> <span class="token string">'rgb(54, 162, 235)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderWidth</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">,</span> <span class="token number">30</span><span class="token punctuation">,</span> <span class="token number">40</span><span class="token punctuation">,</span> <span class="token number">50</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">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><h3 id="grid-lines"><a href="#grid-lines" class="header-anchor">#</a> Grid lines</h3> <p>The grid lines for an axis are drawn on the chart area. In the image below, they are red.</p> <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> setup </button></div> <div class="code-editor-tools" data-v-66ca8197> <a href="https://github.com/chartjs/Chart.js/blob/master/docs/axes/cartesian/index.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, options: { scales: { x: { grid: { color: 'red', borderColor: 'grey', tickColor: 'grey' } } } } };</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> <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span> data<span class="token punctuation">,</span> <span class="token literal-property property">options</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">scales</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">x</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">grid</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'red'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderColor</span><span class="token operator">:</span> <span class="token string">'grey'</span><span class="token punctuation">,</span> <span class="token literal-property property">tickColor</span><span class="token operator">:</span> <span class="token string">'grey'</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 labels = Utils.months({count: 7}); const data = { labels: labels, datasets: [{ label: 'My First dataset', backgroundColor: 'rgba(54, 162, 235, 0.5)', borderColor: 'rgb(54, 162, 235)', borderWidth: 1, data: [10, 20, 30, 40, 50, 0, 5], }] };</textarea><pre data-testid="preview" class="prism-editor__editor"><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><span class="token literal-property property">count</span><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> <span class="token literal-property property">labels</span><span class="token operator">:</span> labels<span class="token punctuation">,</span> <span class="token literal-property property">datasets</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token punctuation">{</span> <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token string">'My First dataset'</span><span class="token punctuation">,</span> <span class="token literal-property property">backgroundColor</span><span class="token operator">:</span> <span class="token string">'rgba(54, 162, 235, 0.5)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderColor</span><span class="token operator">:</span> <span class="token string">'rgb(54, 162, 235)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderWidth</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">,</span> <span class="token number">30</span><span class="token punctuation">,</span> <span class="token number">40</span><span class="token punctuation">,</span> <span class="token number">50</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">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><h3 id="ticks-and-tick-marks"><a href="#ticks-and-tick-marks" class="header-anchor">#</a> Ticks and Tick Marks</h3> <p>Ticks represent data values on the axis that appear as labels. The tick mark is the extension of the grid line from the axis border to the label. In this example, the tick mark is drawn in red while the tick label is drawn in blue.</p> <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> setup </button></div> <div class="code-editor-tools" data-v-66ca8197> <a href="https://github.com/chartjs/Chart.js/blob/master/docs/axes/cartesian/index.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, options: { scales: { x: { grid: { tickColor: 'red' }, ticks: { color: 'blue', } } } } };</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> <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span> data<span class="token punctuation">,</span> <span class="token literal-property property">options</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">scales</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">x</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">grid</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">tickColor</span><span class="token operator">:</span> <span class="token string">'red'</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token literal-property property">ticks</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'blue'</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><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 labels = Utils.months({count: 7}); const data = { labels: labels, datasets: [{ label: 'My First dataset', backgroundColor: 'rgba(54, 162, 235, 0.5)', borderColor: 'rgb(54, 162, 235)', borderWidth: 1, data: [10, 20, 30, 40, 50, 0, 5], }] };</textarea><pre data-testid="preview" class="prism-editor__editor"><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><span class="token literal-property property">count</span><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> <span class="token literal-property property">labels</span><span class="token operator">:</span> labels<span class="token punctuation">,</span> <span class="token literal-property property">datasets</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token punctuation">{</span> <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token string">'My First dataset'</span><span class="token punctuation">,</span> <span class="token literal-property property">backgroundColor</span><span class="token operator">:</span> <span class="token string">'rgba(54, 162, 235, 0.5)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderColor</span><span class="token operator">:</span> <span class="token string">'rgb(54, 162, 235)'</span><span class="token punctuation">,</span> <span class="token literal-property property">borderWidth</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">,</span> <span class="token number">30</span><span class="token punctuation">,</span> <span class="token number">40</span><span class="token punctuation">,</span> <span class="token number">50</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">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><h3 id="title"><a href="#title" class="header-anchor">#</a> Title</h3> <p>The title component of the axis is used to label the data. In the example below, it is shown in red.</p> <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" da