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Grid Snapping
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<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
svg { width:100%; height: 100% } | |
.brush .extent { | |
stroke: #000; | |
stroke-width: 5px; | |
stroke-dasharray: 5 5; | |
fill-opacity: .125; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
</head> | |
<body> | |
<script> | |
var margin = {top: 20, right: 40, bottom: 20, left: 40}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var years = ["2011", "2012", "2013", "2014", "2015"], | |
groups = ["A", "B", "C"]; | |
years = d3.range(1996, 2016); | |
groups = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"]; | |
var data = d3.merge(years.map(function(y){ | |
return groups.map(function(g){ | |
return {"year":y, "group":g}; | |
}) | |
})); | |
//console.log("data", data); | |
console.clear() | |
var x = d3.scale.ordinal() | |
.domain(years) | |
.rangeRoundBands([0, width]); | |
var y = d3.scale.ordinal() | |
.domain(groups) | |
.rangeRoundBands([0, height]); | |
var brush = d3.svg.brush() | |
.x(x) | |
.y(y) | |
//.extent([new Date(2013, 2, 2), new Date(2013, 2, 3)]) | |
.on("brushstart", brushstart) | |
.on("brush", brushmove) | |
.on("brushend", brushend); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width + margin.left + margin.right) | |
.attr("height", height + margin.top + margin.bottom) | |
.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
var rects = svg.selectAll("rect").data(data) | |
rects.enter().append("rect") | |
.attr("x",function(d){ return x(d.year) + 5; }) | |
.attr("y",function(d){ return y(d.group) + 5; }) | |
.attr({width: x.rangeBand() - 10, height: y.rangeBand() - 10}) | |
.style({ fill: "#a72d1a"}) | |
.transition().duration(3000).ease("bounce") | |
.style({ fill: "#5db9e3"}) | |
rects.on("click", function(d){ | |
console.log(JSON.stringify(d, null, 2)); | |
d3.select(this) | |
.style({ fill: "#a72d1a"}) | |
.transition().duration(3000).ease("bounce") | |
.style({ fill: "#5db9e3"}) | |
}) | |
var gBrush = svg.append("g") | |
.attr("class", "brush") | |
.call(brush); | |
function brushstart() { | |
} | |
function brushmove() { | |
var extent0 = brush.extent(), | |
extent1 = [[],[]]; | |
if(d3.event.mode == "move"){ | |
console.log("move") | |
brush.clear().event(brush) | |
} | |
extent1 = [ | |
[ | |
x(invertOrdinal(x, extent0[0][0])), | |
y(invertOrdinal(y, extent0[0][1])) | |
], | |
[ | |
x(invertOrdinal(x, extent0[1][0])) + x.rangeBand(), | |
y(invertOrdinal(y, extent0[1][1])) + y.rangeBand() | |
] | |
]; | |
d3.select(this).call(brush.extent(extent1)); | |
} | |
function brushend() { | |
var extent0 = brush.extent(); | |
console.log(extent0); | |
var extent1 = [ | |
[ | |
invertOrdinal(x, extent0[0][0]), | |
invertOrdinal(y, extent0[0][1]) | |
], | |
[ | |
invertOrdinal(x, extent0[1][0] - 1), | |
invertOrdinal(y, extent0[1][1] - 1) | |
] | |
]; | |
console.log(extent1[0],extent1[1]); | |
rects | |
.filter(function(d){ | |
/*if((x(extent1[0][0]) <= x(d.year)) && | |
(x(d.year) <= x(extent1[1][0])) && | |
( y(extent1[0][1]) <= y(d.group)) && | |
(y(d.group) <= y(extent1[1][1]))){ | |
console.log(d, | |
[x(extent1[0][0]), x(d.year), x(extent1[1][0])], | |
[y(extent1[0][1]), y(d.group), y(extent1[1][1])] | |
); | |
};*/ | |
return | |
(x(extent1[0][0]) <= x(d.year)) && (x(d.year) <= x(extent1[1][0])) && | |
(y(extent1[0][1]) <= y(d.group)) && (y(d.group) <= y(extent1[1][1])); | |
}) | |
.call(function(d){ | |
console.log(this); | |
d3.select(this) | |
.style({ fill: "#a72d1a"}) | |
.transition().duration(3000).ease("bounce") | |
.style({ fill: "#5db9e3"}); | |
}); | |
brush.clear() | |
gBrush.transition().delay(500).duration(0).call(brush); | |
} | |
function invertOrdinal(scale, point){ | |
return scale.domain()[d3.bisect(scale.range(), point) - 1]; | |
} | |
</script> | |
</body> |
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