![]() However, this method requires the container to be relatively positioned and dedicated to the chart canvas only. parent-element's width and height respectively. Chart.js uses its parent container to update the canvas render and display sizes. parent-element behaves as a solid container (of an aspect ratio of 2:1) increasing/decreasing height according to its width which is set to fit the 100 of the available X space, all we need to do is to attach the window resizing event to our chart applyOptions method passing new width and height set by reading. ![]() This can ease the resize process by debouncing the update of the elements.ĭetecting when the canvas size changes can not be done directly from the canvas element. Gets passed two arguments: the chart instance and the new size.ĭelay the resize update by the given amount of milliseconds. The default value varies by chart type Radial charts (doughnut, pie, polarArea, radar) default to 1 and others default to 2.Ĭalled when a resize occurs. Note that this option is ignored if the height is explicitly defined either as attribute or via the style. width / height, a value of 1 representing a square canvas). Maintain the original canvas aspect ratio (width / height) when resizing.Ĭanvas aspect ratio (i.e. Resizes the chart canvas when its container does ( important note.). Chart.js needs a dedicated container for each canvas and this styling should be applied there.Ĭhart.js provides a few options to enable responsiveness and control the resize behavior of charts by detecting when the canvas display size changes and update the render size accordingly. : invalid behavior, the canvas continually shrinks.: invalid behavior, the canvas is resized but becomes blurry ( example (opens new window)).: invalid values, the canvas doesn't resize ( example (opens new window)).Furthermore, these sizes are independent from each other and thus the canvas render size does not adjust automatically based on the display size, making the rendering inaccurate. height) can not be expressed with relative values, contrary to the display size ( and. We can customize chartarea option of Google Chart to ensure that labels don't get cut off on resizing.When it comes to changing the chart size based on the window size, a major limitation is that the canvas render size ( canvas.width and. Sites Community Sites Help Sign in Help Center Community Starting September 1, 2021, classic Sites will not. Calculate as Height / Width x 100įor a 16x9 display it would be 9/16 = 0.5625 x 100 = 56.25% Google sheet chart embed and adjust to respond by 100 for both height and width. see this example -> Google Charts - Responsive Issue - Dynamically Resize WhiteHat at 14:57 Show 2 more comments 2 This CodePen shows an example of making Google Charts responsive. We can change the bottom padding of visualization_wrap to match the desired aspect ratio of chart. to make the google chart responsive, it must be re-drawn on the 'resize' event. Here are two examples of responsive charts. More double events from Chrome and Safari). & : adds a special event that fires at a reduced rate (no This project on GitHub has two script files :- : adds a special event that fires once after the window To make Google Chart responsive there is jQuery library available at GitHub - jquery-smartresize licensed under MIT License, which has the ability to resize graphs on window resize event. There is no option in Google Visualization API to make Google Charts responsive.īut we can make Google Charts responsive as Window Resizes. as window resize functions are called multiple times any time you change the window size this helps make the function only actually work once each time you change the window size, the rest of the calls get stopped by the if statement. The original code by Google simply does this at the end: var chart = new (document.getElementById('chart_div')) Ĭhanging it with a little javascript you can scale it when the window resizes: function resize () ,1000) Īll it does is wait 1 second before the chart reloads and doesn't let the function call again in this waiting period. redraw graph when window resize is completed If(this.resizeTO) clearTimeout(this.resizeTO) To redraw only when the window resize is completed and avoid multiple triggers, I think is better create an event: //create trigger to resizeEnd event
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