Last active
August 28, 2015 04:37
-
-
Save syntagmatic/0475e4fb201315a10b70 to your computer and use it in GitHub Desktop.
Clock II
This file contains 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> | |
| body { | |
| background: #eee; | |
| margin: auto; | |
| position: relative; | |
| } | |
| text { | |
| text-anchor: middle; | |
| alignment-baseline: middle; | |
| fill: #444; | |
| } | |
| .hour line { | |
| stroke: #888; | |
| } | |
| .hour.hand { | |
| line-width: 3px; | |
| } | |
| .minute line { | |
| stroke: #888; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <script> | |
| d3.timer(tick); | |
| function hands() { | |
| var now = new Date(); | |
| var milliseconds = now.getMilliseconds(); | |
| var seconds = now.getSeconds() + milliseconds / 1000; | |
| var minutes = now.getMinutes() + seconds / 60; | |
| var hours = ((now.getHours() + 24) % 12 || 0) + minutes / 60; | |
| return [ | |
| {field: "hours", color: "#444", length: 90, strokeWidth: 9, index: .555, spacing: 0.1, value: hours / 12}, | |
| {field: "minutes", color: "#444", length: 145, strokeWidth: 6, index: .597, spacing: 0.115, value: minutes / 60}, | |
| {field: "seconds", color: "#2ac", length: 160, strokeWidth: 3, index: .6348, spacing: 0.015, value: seconds / 60} | |
| ]; | |
| } | |
| var width = 960, | |
| height = 500, | |
| radius = 94; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| // minute hands | |
| var minutedomain = d3.range(60); | |
| var minuteangle = d3.scale.linear() | |
| .domain([0,60]) | |
| .range([180,-180]) | |
| var minutemarks = svg.selectAll(".minute.axis") | |
| .data(minutedomain) | |
| .enter().append("g") | |
| .attr("class", "minute") | |
| .attr("transform", function(d) { return "rotate(" + -minuteangle(d) + ")"; }) | |
| minutemarks | |
| .append("line") | |
| .attr("stroke-linecap", "round") | |
| .attr("x1", 155) | |
| .attr("x2", 165) | |
| .attr("y1", 0) | |
| .attr("y2", 0); | |
| // hour hands | |
| var hourdomain = d3.range(12); | |
| var hourangle = d3.scale.linear() | |
| .domain([0,12]) | |
| .range([180,-180]) | |
| var hourmarks = svg.selectAll(".hour.axis") | |
| .data(hourdomain) | |
| .enter().append("g") | |
| .attr("class", "hour") | |
| .attr("transform", function(d) { return "rotate(" + -hourangle(d) + ")"; }) | |
| hourmarks | |
| .append("line") | |
| .attr("stroke-linecap", "round") | |
| .attr("stroke-width", 3) | |
| .attr("x1", 150) | |
| .attr("x2", 170) | |
| .attr("y1", 0) | |
| .attr("y2", 0); | |
| var field = svg.selectAll("g.field") | |
| .data(hands) | |
| .enter().append("g") | |
| .attr("class", "field"); | |
| field.append("line") | |
| .attr("class", function(d) { return d.field + " hand"; }) | |
| .attr("stroke-width", function(d) { return d.strokeWidth; }) | |
| .attr("stroke-linecap", "round") | |
| .attr("x1", function(d) { return d.strokeWidth/2; }) | |
| .attr("x2", function(d) { return d.length; }) | |
| .attr("y1", 0) | |
| .attr("y2", 0); | |
| var counter = 0; | |
| function tick() { | |
| if (counter++ % 3 != 0) return; // ease up on cpu | |
| field.data(hands) | |
| .select("line") | |
| .attr("transform", function(d) { return "rotate(" + (360*d.value-90)+ ")" }) | |
| .style("stroke", function(d) { return d.color; }); | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment