Last active
February 24, 2017 20:56
-
-
Save tcuongtran/f92b54af05c11d111ba096302d3d3aa3 to your computer and use it in GitHub Desktop.
D3 Hexagon State Grid Map with Legend
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
| !function(){d3.hexbin=function(){function u(n){var r={};return n.forEach(function(n,t){var a=s.call(u,n,t)/o,e=Math.round(a),c=h.call(u,n,t)/i-(1&e?.5:0),f=Math.round(c),l=a-e;if(3*Math.abs(l)>1){var v=c-f,g=f+(f>c?-1:1)/2,m=e+(e>a?-1:1),M=c-g,d=a-m;v*v+l*l>M*M+d*d&&(f=g+(1&e?1:-1)/2,e=m)}var j=f+"-"+e,p=r[j];p?p.push(n):(p=r[j]=[n],p.i=f,p.j=e,p.x=(f+(1&e?.5:0))*i,p.y=e*o)}),d3.values(r)}function a(r){var t=0,u=0;return n.map(function(n){var a=Math.sin(n)*r,e=-Math.cos(n)*r,i=a-t,o=e-u;return t=a,u=e,[i,o]})}var e,i,o,c=1,f=1,h=r,s=t;return u.x=function(n){return arguments.length?(h=n,u):h},u.y=function(n){return arguments.length?(s=n,u):s},u.hexagon=function(n){return arguments.length<1&&(n=e),"m"+a(n).join("l")+"z"},u.centers=function(){for(var n=[],r=0,t=!1,u=0;f+e>r;r+=o,t=!t,++u)for(var a=t?i/2:0,h=0;c+i/2>a;a+=i,++h){var s=[a,r];s.i=h,s.j=u,n.push(s)}return n},u.mesh=function(){var n=a(e).slice(0,4).join("l");return u.centers().map(function(r){return"M"+r+"m"+n}).join("")},u.size=function(n){return arguments.length?(c=+n[0],f=+n[1],u):[c,f]},u.radius=function(n){return arguments.length?(e=+n,i=2*e*Math.sin(Math.PI/3),o=1.5*e,u):e},u.radius(1)};var n=d3.range(0,2*Math.PI,Math.PI/3),r=function(n){return n[0]},t=function(n){return n[1]}}(); |
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> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Document</title> | |
| </head> | |
| <body> | |
| <svg width="960" height="500"></svg> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script src="d3.hexbin.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-legend/2.21.0/d3-legend.min.js"></script> | |
| <script> | |
| var states = [], | |
| radius = 25, | |
| cellSize = radius + 20, | |
| hexbin = d3.hexbin() | |
| .size([width, height]) | |
| .radius(radius), | |
| stateGrid = [ | |
| ['AK', '00', '00', '00', '00', '00', '00', '00', '00', '00', 'ME'], | |
| ['00', '00', '00', '00', '00', 'WI', '00', '00', '00','VT', 'NH'], | |
| ['WA', 'ID', 'MT', 'ND', 'MN', 'IL', 'MI', '00', 'NY', 'MA'], | |
| ['OR', 'NV', 'WY', 'SD', 'IA', 'IN', 'OH', 'PA', 'NJ', 'CT', 'RI'], | |
| ['CA', 'UT', 'CO', 'NE', 'MO', 'KY', 'WV', 'VA', 'MD', 'DE'], | |
| ['00', 'AZ', 'NM', 'KS', 'AR', 'TN', 'NC', 'SC'], | |
| ['00', '00', '00', 'OK', 'LA', 'MS', 'AL', 'GA'], | |
| ['HI', '00', '00', 'TX', '00', '00', '00', 'FL'] | |
| ], | |
| svg = d3.select('svg'), | |
| width = +svg.attr('width'), | |
| height = +svg.attr('height'), | |
| gridWidth, | |
| gridHeight, | |
| fillColor = d3.scaleThreshold() | |
| .domain([10, 25, 50, 100, 200, 400, 1000]) | |
| .range(['#0b8fff', '#0e77d1', '#0b61ac', '#0a5698', '#09487e', '#083e6d', '#09579a']), | |
| g, | |
| i, | |
| j, | |
| legend; | |
| for (i = 0; i < stateGrid.length; i++) { | |
| for (j = 0; j < stateGrid[i].length; j++) { | |
| var state = stateGrid[i][j]; | |
| if (state !== '00') { | |
| if (i % 2 == 0) { | |
| states.push({ | |
| name: state, | |
| x: j, | |
| y: i, | |
| value: Math.floor(Math.random() * (1000 - 0) + 0) | |
| }); | |
| } else { | |
| states.push({ | |
| name: state, | |
| x: j + 0.5, | |
| y: i, | |
| value: Math.floor(Math.random() * (1000 - 0) + 0) | |
| }); | |
| } | |
| } | |
| } | |
| } | |
| gridWidth = d3.max(states, function(d) { return d.x; }) + 1, | |
| gridHeight = d3.max(states, function(d) { return d.y; }) + 1; | |
| g = svg.append('g') | |
| .attr('transform', 'translate(' + width / 2 + ',' + height / 2 + ')'); | |
| for (i = 0; i < states.length; i++) { | |
| var d = states[i], | |
| horizontalPadding = 2, | |
| verticalPadding = - 5, | |
| xPoint = (d.x - gridWidth / 2) * (cellSize + horizontalPadding), | |
| yPoint = hexY = (d.y - gridHeight / 2) * (cellSize + verticalPadding); | |
| g.append('path') | |
| .attr('class', 'hexagon') | |
| .attr('d', hexbin.hexagon()) | |
| .attr('fill', 'white') | |
| .attr('transform', 'translate(' + xPoint + ',' + yPoint + ')') | |
| .transition() | |
| .duration(500) | |
| .delay(i * 5) | |
| .attr('transform', 'translate(' + xPoint + ',' + yPoint + ')') | |
| .style('fill', fillColor(d.value)); | |
| g.append('text') | |
| .attr('fill', 'white') | |
| .attr('text-anchor', 'middle') | |
| .attr('alignment-baseline', 'middle') | |
| .attr('transform', 'translate(' + xPoint + ',' + yPoint + ')') | |
| .attr('class', 'title') | |
| .transition() | |
| .duration(600) | |
| .delay(i * 10) | |
| .attr('transform', 'translate(' + xPoint + ',' + yPoint + ')') | |
| .text(d.name); | |
| } | |
| svg.append('g') | |
| .attr('class', 'legendThreshold') | |
| .attr('transform', 'translate(' + (width - 200) + ',20)'); | |
| legend = d3.legendColor() | |
| .labelFormat(d3.format(',.0f')) | |
| .labels(function({ i, genLength, generatedLabels }){ | |
| if (i === 0 ){ | |
| return generatedLabels[i] | |
| .replace('NaN', '0') | |
| } | |
| return generatedLabels[i] | |
| }) | |
| .shape('path', hexbin.hexagon(10)) | |
| .scale(fillColor); | |
| svg.select('.legendThreshold') | |
| .call(legend); | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment