paper.js/test/tests/SvgExport.js

/*
 * Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
 * http://paperjs.org/
 *
 * Copyright (c) 2011 - 2016, Juerg Lehni & Jonathan Puckey
 * http://scratchdisk.com/ & http://jonathanpuckey.com/
 *
 * Distributed under the MIT license. See LICENSE file for details.
 *
 * All rights reserved.
 */

QUnit.module('SvgExport');

test('Export SVG line', function() {
    var attrs = {
        x1: 5,
        x2: 45,
        y1: 5,
        y2: 45
    };
    var path = new Path.Line([attrs.x1, attrs.y1], [attrs.x2, attrs.y2]);
    equals(path.exportSVG({ matchShapes: true }), createSVG('line', attrs));
});

test('Export SVG rect', function() {
    var attrs = {
        x: 25,
        y: 25,
        width: 100,
        height: 100
    };
    var path = new Path.Rectangle(attrs);
    equals(path.exportSVG({ matchShapes: true }), createSVG('rect', attrs));
});

test('Export SVG round rect', function() {
    var attrs = {
        x: 25,
        y: 25,
        rx: 50,
        ry: 50,
        width: 100,
        height: 100
    };
    var path = new Path.Rectangle(new Rectangle(attrs),
            new Size(attrs.rx, attrs.ry));
    equals(path.exportSVG({ matchShapes: true }), createSVG('rect', attrs));
});

test('Export SVG ellipse', function() {
    var attrs = {
        cx: 300,
        cy: 80,
        rx: 100,
        ry: 50
    }
    var path = new Path.Ellipse({
        center: new Point(attrs.cx, attrs.cy),
        radius: new Point(attrs.rx, attrs.ry)
    });
    equals(path.exportSVG({ matchShapes: true }), createSVG('ellipse', attrs));
});

test('Export SVG circle', function() {
    var attrs = {
        cx: 100,
        cy: 80,
        r: 50
    }
    var path = new Path.Circle({
        center: new Point(attrs.cx, attrs.cy),
        radius: attrs.r
    });
    equals(path.exportSVG({ matchShapes: true }), createSVG('circle', attrs));
});

function createPolyPath(str) {
    var points = str.split(' ').map(function(point) {
        return point.split(',').map(parseFloat);
    });
    var path = new Path();
    path.moveTo(points[0]);
    for (var i = 1; i < points.length; i++)
        path.lineTo(points[i]);
    return path;
}

test('Export SVG polygon', function() {
    var points = '100,10 40,180 190,60 10,60 160,180';
    var path = createPolyPath(points);
    path.closePath();
    equals(path.exportSVG({ matchShapes: true }), createSVG('polygon', {
        points: points
    }));
});

test('Export SVG polyline', function() {
    var points = '5,5 45,45 5,45 45,5';
    var path = createPolyPath(points);
    equals(path.exportSVG({ matchShapes: true }), createSVG('polyline', {
        points: points
    }));
});

test('Export SVG path defaults to precision 5', function() {
    var path = new Path('M0.123456789,1.9l0.8,1.1');
    equals(path.exportSVG({}).getAttribute('d'), 'M0.12346,1.9l0.8,1.1');
});

test('Export SVG path at precision 0', function() {
    var path = new Path('M0.123456789,1.9l0.8,1.1');
    equals(path.exportSVG({ precision: 0 }).getAttribute('d'), 'M0,2l1,1');
});