Takes a list of columns (a matrix where the columns can have different lengths) and arranges every element on a grid. Inspired by d3.layout.grid.
Click for a demo.
Last active
December 28, 2015 09:58
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d3.layout.colgrid
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| (function() { | |
| d3.layout.colgrid = function() { | |
| var x = d3.scale.ordinal(), | |
| y = d3.scale.ordinal(), | |
| gridsize = [1, 1], | |
| nodesize = [0, 0], | |
| padding = [0, 0], | |
| cols, rows; | |
| /* Takes a list of columns. Each column is a list of nodes. | |
| * Returns a list of {d:node, x:_, y:_} */ | |
| function colgrid(nodes) { | |
| var ri, ci = -1, | |
| n = nodes.length; | |
| cols = nodes.length; | |
| rows = d3.max(nodes.map(function(c) {return c.length})); | |
| x.domain(d3.range(cols)).rangeBands([0, gridsize[0]], padding[0], 0); | |
| y.domain(d3.range(rows)).rangeBands([0, gridsize[1]], padding[1], 0); | |
| nodesize[0] = x.rangeBand(); | |
| nodesize[1] = y.rangeBand(); | |
| outnodes = [] | |
| while (++ci < cols) { | |
| ri = -1; | |
| while (++ri < rows) { | |
| if(typeof(nodes[ci][ri]) != 'undefined') { | |
| outnode = {} | |
| outnode.d = nodes[ci][ri]; | |
| outnode.x = x(ci); | |
| outnode.y = y(ri); | |
| outnodes.push(outnode); | |
| } | |
| } | |
| } | |
| return outnodes; | |
| } | |
| colgrid.size = function(value) { | |
| if (!arguments.length) return gridsize; | |
| gridsize = value; | |
| return colgrid; | |
| } | |
| colgrid.nodesize = function() { | |
| return nodesize; | |
| } | |
| colgrid.padding = function(value) { | |
| if (!arguments.length) return padding; | |
| padding = value; | |
| return colgrid; | |
| } | |
| return colgrid; | |
| }; | |
| })(); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/normalize/2.1.3/normalize.min.css"> | |
| <style> | |
| body { | |
| font-family: Helvetica; | |
| font-size: 10px; | |
| } | |
| .cell { | |
| display: table; | |
| border-radius: 10px; | |
| } | |
| .cell .inner { | |
| display: table-cell; | |
| text-align: center; | |
| vertical-align: middle; | |
| font-size: 40px; | |
| font-weight: bold; | |
| color: white; | |
| } | |
| .good { | |
| background: #2ecc71; | |
| } | |
| .bad { | |
| background: #e74c3c; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="grid"> | |
| </div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="d3-colgrid.js"></script> | |
| <script> | |
| var width = 450, | |
| height = 450, | |
| tick = 0; | |
| var colgrid = d3.layout.colgrid() | |
| .size([width, height]) | |
| .padding([0.1, 0.1]); | |
| var grid = d3.select(".grid") | |
| .style({ | |
| width : width+'px', | |
| height : height+'px', | |
| position : 'relative', | |
| overflow : 'hidden', | |
| }); | |
| // Generate some data | |
| function numbers(n) { var r = [], i = -1; while(++i < n) { r.push(i) } return r} | |
| function letters(n) { var r = [], i = -1; while(++i < n) { r.push(String.fromCharCode(97+i)) } return r} | |
| function trianglef(x,a) { return Math.abs(x % a - a/2) } // time, amplitude | |
| function squaref(x,a,p,dc) { return Math.round(x%p < dc*p ? 1 : 0)*a } // time, amplitude, period, duty cycle [0..1] | |
| function getdata() { | |
| var data = [], list; | |
| list = numbers(trianglef(tick,6)+1); if(list.length > 0) data.push(list); | |
| list = letters(trianglef(tick+1,8)+1); if(list.length > 0) data.push(list); | |
| if (squaref(tick,1,12,0.5)) { | |
| list = numbers(trianglef(tick+4,10)+1); if(list.length > 0) data.push(list); | |
| } | |
| return data; | |
| } | |
| function cellclass(d) { | |
| var color = (typeof(d.d) == 'number' && d.d > 2) ? 'bad' : 'good'; | |
| return 'cell '+color; | |
| } | |
| function update() { | |
| ++tick; | |
| var data = getdata(); | |
| grid.selectAll('.cell').remove(); | |
| grid.selectAll('.cell').data(colgrid(data)).enter().append('div') | |
| .attr('class',function(d) {return cellclass(d)}).style({ | |
| position: 'absolute', | |
| left : function(d) {return d.x+'px'}, | |
| top : function(d) {return d.y+'px'}, | |
| width : colgrid.nodesize()[0]+'px', | |
| height : colgrid.nodesize()[1]+'px' | |
| }) | |
| .append('div').attr('class','inner') | |
| .text(function(d) {return d.d}); | |
| } | |
| update(); | |
| window.setInterval(update,1500); | |
| </script> | |
| </body> | |
| </html> |
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