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@SpaceActuary
Last active February 10, 2019 01:52
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Grid Snapping
<!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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