- How to use an external SVG in a D3 visualisation
- How to do custom line endings in SVG eg. arrows or turtles
Last active
August 2, 2019 07:39
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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