- How to use an external SVG in a D3 visualisation
- How to do custom line endings in SVG eg. arrows or turtles
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August 2, 2019 07:39
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SVG Arrow heads
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| <html> | |
| <head> | |
| <title>SVG Arrows with D3</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <link rel="stylesheet" type="text/css" href="http://www.toffeemilkshake.co.uk/tgp-ui-styles/ui-style.css"> | |
| <style type="text/css"> | |
| .arrow{ | |
| stroke-width:5; | |
| stroke:#000; | |
| stroke-dasharray:5, 5; | |
| } | |
| circle{ | |
| stroke-width:5; | |
| stroke:#000; | |
| fill:#FFF; | |
| } | |
| #turtle-icon, #arrow{ | |
| stroke-width:1; | |
| stroke-dasharray:0; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Arrow heads and turtles in D3</h1> | |
| <div class="viz"></div> | |
| <hr> | |
| <p><a href="http://www.toffeemilkshake.co.uk">Tom Pearson 2014</a></p> | |
| <p>Turtle Icon by Martin Smith from <a href="http://thenounproject.com/">The Noun Project</a></p> | |
| </body> | |
| <script type="text/javascript"> | |
| d3.xml('turtle.svg', "image/svg+xml", function(xml){ | |
| var importedNode = document.importNode(xml.documentElement, true).getElementsByTagName("g")[0], | |
| height = 500, width = 800, | |
| margin = 50, | |
| type = ['turtle','arrow']; | |
| svg = d3.select(".viz").append("svg") | |
| .attr("width", 800) | |
| .attr("height", 600), | |
| defs = svg.append("defs") | |
| defs.append("marker") | |
| .attr({ | |
| "id":"arrow", | |
| "viewBox":"0 -5 10 10", | |
| "refX":5, | |
| "refY":0, | |
| "markerWidth":4, | |
| "markerHeight":4, | |
| "orient":"auto" | |
| }) | |
| .append("path") | |
| .attr("d", "M0,-5L10,0L0,5") | |
| .attr("class","arrowHead"); | |
| defs.append("marker") | |
| .attr({ | |
| "id":"turtle", | |
| "viewBox":"0 0 100 100", | |
| "refX":50, | |
| "refY":50, | |
| "markerWidth":10, | |
| "markerHeight":10, | |
| "orient":"auto" | |
| }) | |
| .node().appendChild(importedNode); | |
| d3.range(15).forEach(function(){ //I don't normally do loops like this, just a whim | |
| svg.append('line') | |
| .attr({ | |
| "class":"arrow", | |
| "marker-end":"url(#" + type[Math.round(Math.random())] + ")", | |
| "x1":width/2, | |
| "y1":height/2, | |
| "x2":margin + Math.random()*(width-margin*2), | |
| "y2":margin + Math.random()*(height-margin*2) | |
| }); | |
| }) | |
| svg.append('circle') | |
| .attr({ | |
| cx:width/2,cy:height/2,r:20 | |
| }) | |
| }) | |
| </script> | |
| </html> |
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