Question

As far as I know, there is currently no way to display SVG polygons in the Raphael Javascript library. I’m building an application that needs to read in SVGs and them display them in Raphael, however, many of these SVGs use polygons.

For example, I’m reading in an SVG with a polygon in this format:

<polygon points="260.5,627.75 259.563,628.313 258.625,628.563 258.25...

So, I’m wondering…is there a way to convert the polygon points into a path which I could draw in Raphael? I’ve seen a few applications using python and PHP, but so far I can’t find anything that is strictly javascript.

Any help would be greatly appreciated.
Thanks

Answer 1

See Paper.path. You can specify your own path. E.g. a red triangle:

paper.path('M 50 0 L 100 100 L 0 100 Z').attr('fill', 'red')

In response to your edit:

You should be able to take the points attribute, as a string, and replace all coordinates in the format x,y with L x,y — that’ll make a valid path for SVG. You might want a moveTo command initially though. So, this:

260.5,627.75 259.563,628.313 258.625,628.563

Would become:

M 260.5,627.75 L 259.563,628.313 L 258.625,628.563

Raphael seems to want integers, not decimals. So it would have to be:

M 260,627 L 259,628 L 258,628

To make this happen:

var polygonPoints = '260.5,627.75 259.563,628.313 258.625,628.563';
var convertedPath = polygonPoints.replace(/([0-9.]+),([0-9.]+)/g, function($0, x, y) {
    return 'L ' + Math.floor(x) + ',' + Math.floor(y) + ' ';
}).replace(/^L/, 'M'); // replace first L with M (moveTo)