Last active
January 1, 2018 19:42
-
-
Save veltman/7295691 to your computer and use it in GitHub Desktop.
For creating an approval matrix/magic quadrant viz in d3.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .grid { | |
| stroke-width: 0.5px; | |
| stroke: steelblue; | |
| fill: none; | |
| opacity: 0.5; | |
| } | |
| .axis { | |
| stroke-width: 3px; | |
| stroke: black; | |
| fill: none; | |
| } | |
| g.item circle { | |
| fill: black; | |
| stroke: none; | |
| } | |
| svg { | |
| border: 1px solid #ccc; | |
| } | |
| text { | |
| font: 12px sans-serif; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| //Options | |
| var width = 480, | |
| height = 480, | |
| dotRadius = 4, | |
| gridSpacing = 10; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width",width) | |
| .attr("height",height); | |
| //Scales for item positions | |
| var x = d3.scale.linear().domain([-10,10]).range([0,width]); | |
| var y = d3.scale.linear().domain([-10,10]).range([height,0]); | |
| //gridlines | |
| svg.append("path") | |
| .attr("class","grid") | |
| .attr("d",function() { | |
| var d = ""; | |
| for (var i = gridSpacing; i < width; i += gridSpacing ) { | |
| d += "M"+i+",0 L"+i+","+height; | |
| } | |
| for (var i = gridSpacing; i < height; i += gridSpacing ) { | |
| d += "M0,"+i+" L"+width+","+i; | |
| } | |
| return d; | |
| }) | |
| //x axis | |
| svg.append("path") | |
| .attr("class","axis") | |
| .attr("d","M0,"+height/2+" L"+width+","+height/2); | |
| //y axis | |
| svg.append("path") | |
| .attr("class","axis") | |
| .attr("d","M"+width/2+",0 L"+width/2+","+height); | |
| //Data - x and y can be anything positive or negative | |
| //Domains for scales need to be wide enough. | |
| //Currently -10 to +10 | |
| var itemList = [ | |
| { | |
| x: 5, | |
| y: 5, | |
| description: "I'm in the upper-right quadrant!" | |
| }, | |
| { | |
| x: -5, | |
| y: -5, | |
| description: "I'm in the lower-left quadrant!" | |
| } | |
| ]; | |
| //One group per item | |
| var items = svg.selectAll("g.item").data(itemList).enter().append("g") | |
| .attr("class","item"); | |
| //Add a dot | |
| items.append("circle") | |
| .attr("r",dotRadius) | |
| .attr("cx",function(d){ | |
| return x(d.x); | |
| }) | |
| .attr("cy",function(d){ | |
| return y(d.y); | |
| }); | |
| //Add a label | |
| //would need to use .getBBox() to make sure this doesn't hit the sides | |
| items.append("text") | |
| .attr("x",function(d){ | |
| return x(d.x); | |
| }) | |
| .attr("y",function(d){ | |
| return y(d.y); | |
| }) | |
| .attr("dy","1.25em") | |
| .attr("text-anchor","middle") | |
| .text(function(d){return d.description;}); | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment