Created
May 1, 2014 10:50
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A Pen by Herr Phon.
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| <html> | |
| <head> | |
| <title> Example </title> | |
| <script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script> | |
| </head> | |
| <body> | |
| <div id="paper"></div> | |
| </body> | |
| </html> |
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| var paper = Raphael("paper", 500,500); | |
| function point(x, y) { | |
| var point = paper.circle(x, y, 5); | |
| point.attr("fill", "white"); | |
| point.draggable(); | |
| point.linkedPoints = []; | |
| return point; | |
| }; | |
| Raphael.el.connectTo = function(p2) { | |
| var from = this.fromPoint(), | |
| to = p2.toPoint(), | |
| path = paper.path(from.concat(to)); | |
| this.linkedPoints.push({point: p2, path: path}); | |
| p2.linkedPoints.push({point: this, path: path}); | |
| }; | |
| Raphael.el.draggable = function() { | |
| var me = this, | |
| ox = 0, | |
| oy = 0, | |
| move = function (dx, dy) { | |
| var x = Math.min(Math.max(ox + dx, 5), 495), | |
| y = Math.min(Math.max(oy + dy, 5), 495), | |
| p1 = this; | |
| this.attr({cx: x, cy: y}); | |
| this.linkedPoints.forEach(function (element) { | |
| var path = element.path, | |
| p2 = element.point, | |
| from = p2.fromPoint(), | |
| to = p1.toPoint(), | |
| pathArray = from.concat(to); | |
| path.attr({path: pathArray}); | |
| }); | |
| }, | |
| start = function () { | |
| ox = this.attr("cx"); | |
| oy = this.attr("cy"); | |
| }; | |
| this.drag(move, start); | |
| }; | |
| Raphael.el.fromPoint = function() { | |
| var x = this.attr("cx"), | |
| y = this.attr("cy"); | |
| return ['M', x, y]; | |
| }; | |
| Raphael.el.toPoint = function(p2, offset) { | |
| var x = this.attr("cx"), | |
| y = this.attr("cy"); | |
| if (! p2) { | |
| return ['L', x, y]; | |
| } else { | |
| var x2 = p2.attr("cx"); | |
| var y2 = p2.attr("cy"); | |
| if (! offset) { | |
| offset = 20; | |
| } | |
| var z = x + offset; | |
| return ['C', z, y, | |
| z, y2, | |
| x2, y2]; | |
| } | |
| }; | |
| var p1 = point(50, 100); | |
| var p2 = point(100, 130); | |
| var p3 = point(100, 160); | |
| var p4 = point(50, 130); | |
| p1.connectTo(p2); | |
| p1.connectTo(p3); | |
| p1.connectTo(p4); | |
| p2.connectTo(p3); | |
| p2.connectTo(p4); | |
| p3.connectTo(p4); | |
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