Is there a way to make it responsive and use percentages for the width and height variables, innerRadius, and outerRadius I'm workign on a responsive site and need this to change based on screen size/browser size. It defines the aspect ratio, the inner scaling of object lengths and coordinates, and the axis coordinates ( x and y) for where the SVG should originate. I have this D3 chart - pretty much out of the box. The viewBox attribute is an essential component to SVG that actually makes them scalable. I have this D3 chart - pretty much out of the box. To begin down the road to dynamically resizing SVGs, we need to understand two basic attributes: viewBox and preserveAspectRatio. The viewBox and preserveAspectRatio Attributes Use aspect ratio instead of fixed height. Since SVG isn’t an image and thus can be drawn (rendered) at any pixel size, the browser doesn’t inherently associate a width or height unless you explicitly give it one nor will it be able to resize the SVG even if the parent container changes size. With focus on small screens, these examples might help you to improve the readability and usability of your charts. Your computer then recalculates which pixels along those axes should be which colors to best represent that now resized image, discarding the least important pixels in the process. To accomplish that, we could check for the window size again and reduce the number of ticks on the X-Axis if the screen size is small. Think of it this way: Images have specific dimensions ( width and height) and thus when a browser displays them or is asked to resize them, it can just automatically adjust the number of pixels in either the x or y axis. Another common problem with responsive charts and D3 is that once the screen gets smaller, the labels of the x-axis could overlap.
The reason SVG doesn’t inherently scale well when compared to, say, an image, is that SVG is in fact not an image at all – SVG is an object. You can find this approach suggested in a few posts as a standard way to make the chart responsive.
#D3 chart responsive resize update#
When developing with SVG, it can often be difficult to scale SVG objects when the containing frame or even the entire browser window changes size. Approach 2: Listen to window.resize or use jQuery to dispatch events If you have CSS handling the layout of your DOM elements, you could update your d3 charts by listening for resize events from the browser window. Scalable Vector Graphics, or SVG, is a markup language that describes and generates two-dimensional vector graphics, primarily for the web and viewed on modern browsers.
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