CODEWITHSUNDEEP
javascriptjquerysvg
user3142695
user3142695

Reputation: 17322

Adjust size of an SVG-element to its content

I would like to adjust the dimensions of a SVG-Element to its content.

JSfiddle: http://jsfiddle.net/4pD9N/

Here I got an example. The SVG should 'shrink' to fit to the elements + 10px margin on each side. In other words: I want to crop the svg for the unused space...

I know that I have to use getBBox. But how can I calculate the total width and height?

Upvotes: 12

Views: 10092

Answers (2)

user3786597
user3786597

Reputation: 380

By default, the origin of the SVG drawing is the same as the origin of the container. It means that the (0,0) of your drawing is in the upper left corner of the SVG element. To center the content, you should translate the drawing relatively to the container. It can be achieved by modifying the viewBox attribute (four values expected : "minx miny width height") of the SVG element with respect to the result of the getBBox() method. A live example at http://jsfiddle.net/3cp3c/.

svg.setAttribute("viewBox", (bbox.x-10)+" "+(bbox.y-10)+" "+(bbox.width+20)+" "+(bbox.height+20));
svg.setAttribute("width", (bbox.width+20)  + "px");
svg.setAttribute("height",(bbox.height+20) + "px");

Upvotes: 15

user3848987
user3848987

Reputation: 1657

var svg = document.getElementsByTagName("svg")[0];
var bb=svg.getBBox();
var bbx=bb.x;
var bby=bb.y;
var bbw=bb.width;
var bbh=bb.height;
var vb=[bbx,bby,bbw,bbh];
svg.setAttribute("viewBox", vb.join(" ") );

Upvotes: 7

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