D3 auto updates when array length change - d3.js
I have simple code here from Interactive Data Visualization by Scott Murray with minor changes. What I changed is the initial data's length 5 is different from the dataset1's length 25 in the click function.
However, every time I click and update, it does generate random new numbers but the length only shows 5 bars.
What is the reason for this? And how could I modify to change it?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<script type="text/javascript" src="../d3/d3.v3.js"></script>
<title>D3 index01 </title>
<style type="text/css">
div.bar{
display: inline-block;
width: 20px;
height: 75px;
background-color: teal;
margin-right: 2px;
}
</style>
</head>
<body>
<p> click it </p>
<script type = "text/javascript">
var w=600;
var h = 250;
var dataset = [5,10,13,14,15];
var xScale = d3.scale.ordinal()
.domain(d3.range(dataset.length)).rangeRoundBands([0,w],0.05);
var yScale = d3.scale.linear()
.domain([0,d3.max(dataset)]).range([0,h]);
var svg = d3.select("body")
.append("svg")
.attr("width",w)
.attr("height",h);
svg.selectAll("rect")
.data(dataset)
.enter()
.append("rect")
.attr("x", function(d,i){
return xScale(i);
})
.attr("y",function(d){return (h-yScale(d));})
.attr("width",xScale.rangeBand())
.attr("height",function(d){return yScale(d);});
svg.selectAll("text")
.data(dataset)
.enter()
.append("text")
.text(function(d) {
return d;
})
.attr("text-anchor", "middle")
.attr("x", function(d, i) {
return xScale(i)+xScale.rangeBand() / 2;
})
.attr("y", function(d) {
return h - yScale(d) + 14;
})
.attr("font-family", "sans-serif")
.attr("font-size", "11px")
.attr("fill", "white");
d3.select("p")
.on("click",function(){
var dataset1 = [];
for(var i=0; i<25; i++){
var newNumber = Math.floor(Math.random()*25);
dataset1.push(newNumber);
}
svg.selectAll("rect").data(dataset1)
.transition()
.delay(function(d,i){
return i*100;
})
.duration(500)
.attr("x",function(d,i){
return xScale(i);
})
.attr("y",function(d){
return h-yScale(d);
})
.attr("x", function(d,i){
return xScale(i);
})
.attr("height",function(d){
return yScale(d);
})
.attr("fill",function(d){
return "rgb(0,0, " + (d*10) + ")";
});
svg.selectAll("text").data(dataset1).
text(function(d) {
return d;
})
.attr("x", function(d, i) {
return xScale(i) + xScale.rangeBand() / 2;
})
.attr("y", function(d) {
return h - yScale(d) + 14;
});
});
</script>
</body>
</html>
The issue, as I see it, is that when you update the rects with the new numbers using this statement
svg.selectAll("rect").data(dataset1)
the selectAll only selects the original 5 rects that were created based on dataset
var dataset = [5,10,13,14,15];
You could either create them all from the start with an equally sized starting dataset or append new rect svgs at this point.
Since you are doing a transition on the original rects I think it makes the most sense to just start with all 25. You could write a function to automatically generate this and put it where dataset is defined:
var dataset = [];
var numBars = 25; // This is the number of bars you want
var maxHeight = 25; // Seems like this is independent and needed as a ceiling
for(var i =0;i < N;i++){
var newNumber = Math.floor(Math.random()* maxHeight);
dataset.push(newNumber);
}
You could then replace 25 with numBars within your onclick function as well.
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2012-07,0.384615385,0.384615385,0.751386716,0.738434405,0.71849866,0.714081487,0.738434405,0.285714286,0.285714286,0.009030704,0.126783754,0.2,0.2 2012-08,0.384615385,0.461538462,0.700327123,0.643467643,0.619302949,0.646890636,0.643467643,0.285714286,0.285714286,0.012642986,0.150933041,0.2,0.266666667 2012-09,0.076923077,0.230769231,0.72137676,0.701804368,0.63538874,0.70455087,0.701804368,0.214285714,0.214285714,0.011438892,0.130076839,0.066666667,0.066666667 2012-10,0.230769231,0.230769231,0.846252311,0.863112196,0.796246649,0.825827972,0.863112196,0.071428571,0.071428571,0.036724865,0.127881449,0.333333333,0.333333333 2012-11,0.692307692,0.692307692,0.895605177,1,0.798927614,0.909935668,1,0.214285714,0.357142857,0.012642986,0.143798024,0,0.133333333 2012-12,0.923076923,1,0.795903854,0.803283137,0.683646113,0.827257565,0.803283137,0.142857143,0.142857143,0.008428657,0.104829857,0.6,0.6 2013-01,0.230769231,0.384615385,0.92106386,0.964862298,0.848078642,0.944007624,0.964862298,0.285714286,0.357142857,0.015653221,0.146542261,0.533333333,0.733333333 2013-02,0.153846154,0.307692308,0.830322856,0.872880206,0.798927614,0.755777937,0.872880206,0.142857143,0.142857143,0.010234798,0.110318332,0,0.066666667 2013-03,0.230769231,0.230769231,0.927037406,0.944105277,0.885612154,0.953061711,0.944105277,0.142857143,0.142857143,0.009632751,0.131174533,0,0.133333333 2013-04,0.384615385,0.384615385,0.796046082,0.775471442,0.671134942,0.715749345,0.775471442,0,0,0.012040939,0.12349067,0.133333333,0.133333333 2013-05,0.923076923,1,0.824633765,0.844254511,0.742627346,0.843697879,0.844254511,0.142857143,0.142857143,0.015653221,0.149286498,0,0 2013-06,0.307692308,0.307692308,0.884369222,0.949667616,0.865951743,1,0.949667616,0.071428571,0.071428571,0.020469597,0.135016465,0.466666667,0.466666667 2013-07,0.461538462,0.461538462,0.864172948,0.935829602,0.843610366,0.939480581,0.935829602,0.071428571,0.071428571,0.015051174,0.128979144,0.066666667,0.2 2013-08,0.153846154,0.153846154,0.670886076,0.738163071,0.753351206,0.821300929,0.738163071,0.071428571,0.214285714,0.012642986,0.098243688,0,0 2013-09,0.230769231,0.230769231,0.876262267,0.861484195,0.744414656,0.996426019,0.861484195,0,0,0.024081878,0.144895719,0.066666667,0.066666667 2013-10,0.615384615,0.615384615,0.917508178,0.885361552,0.806970509,0.841315225,0.885361552,0.642857143,0.642857143,0.030704395,0.115806806,0.2,0.4 2013-11,0,0.076923077,0.857061584,0.903540904,0.791778374,0.845127472,0.903540904,0.5,0.5,0.012642986,0.093852909,0,0 2013-12,0.230769231,0.230769231,0.704878396,0.719169719,0.584450402,0.81915654,0.719169719,0.285714286,0.5,0.015653221,0.108122942,0,0 2014-01,0.461538462,0.461538462,0.900014223,0.856328856,0.717605004,0.98903979,0.856328856,0.357142857,0.5,0.030102348,0.137211855,0,0.066666667 2014-02,0,0,0.707865169,0.703296703,0.63717605,0.796997856,0.703296703,1,1,0.012642986,0.097145993,0,0 2014-03,0.230769231,0.230769231,0.815531219,0.800434134,0.7256479,0.786275911,0.800434134,0.714285714,0.714285714,0.009632751,0.099341383,0.533333333,0.6 2014-04,0.153846154,0.153846154,0.756506898,0.790259124,0.615728329,0.778174887,0.790259124,0,0,0.011438892,0.12349067,0,0 2014-05,0.461538462,0.461538462,0.85990613,0.767331434,0.705987489,0.78008101,0.767331434,0.142857143,0.285714286,0.014449127,0.13611416,0.066666667,0.133333333 2014-06,0.076923077,0.153846154,0.670886076,0.713064713,0.615728329,0.735763641,0.713064713,0.285714286,0.285714286,0.010836845,0.102634468,0,0 2014-07,0.076923077,0.076923077,0.672592803,0.801655135,0.621090259,0.680009531,0.801655135,0.071428571,0.071428571,0.007224564,0.103183315,0,0 2014-08,0.384615385,0.461538462,0.487270659,0.58377425,0.486148347,0.575887539,0.58377425,0.071428571,0.071428571,0.005418423,0.079582876,0,0.133333333 2014-09,0,0.076923077,0.715545442,0.678062678,0.669347632,0.705980462,0.678062678,0,0,0.01384708,0.103183315,0,0.066666667 2014-10,0.230769231,0.307692308,0.742995306,0.723511057,0.630920465,0.679294734,0.723511057,0,0,0.016857315,0.1064764,0,0 2014-11,0,0,0.672735031,0.623388957,0.583556747,0.64927329,0.623388957,0,0,0.004816376,0.115806806,0.066666667,0.066666667 2014-12,0.307692308,0.384615385,0.591096572,0.55704789,0.478999106,0.491303312,0.55704789,0.285714286,0.428571429,0.003010235,0.074643249,0,0 2015-01,0.076923077,0.153846154,0.659223439,0.561117894,0.531724754,0.605432452,0.561117894,0.071428571,0.071428571,0.007224564,0.094401756,0.133333333,0.133333333 2015-02,0.230769231,0.307692308,0.61840421,0.564780898,0.512064343,0.585656421,0.564780898,0.071428571,0.071428571,0.007224564,0.096597146,0,0 2015-03,0,0,0.770302944,0.677927011,0.599642538,0.675482487,0.677927011,0.071428571,0.071428571,0.009632751,0.111964874,0.066666667,0.2 2015-04,0.076923077,0.076923077,0.706016214,0.61687695,0.731903485,0.563497736,0.61687695,0.071428571,0.071428571,0.008428657,0.097145993,0,0 2015-05,0,0.076923077,0.655383303,0.614027947,0.55406613,0.6154396,0.614027947,0.071428571,0.071428571,0.012642986,0.099341383,0,0 2015-06,0,0.076923077,0.564357844,0.540632207,0.527256479,0.598284489,0.540632207,0.142857143,0.142857143,0.00602047,0.091657519,0,0 2015-07,0.076923077,0.076923077,0.486417295,0.525301859,0.511170688,0.566356922,0.525301859,0,0,0.015653221,0.08726674,0.066666667,0.066666667 2015-08,0.230769231,0.230769231,0.408476746,0.386379053,0.320822163,0.465094115,0.386379053,0,0,0.003010235,0.056531284,0,0 2015-09,0.538461538,0.538461538,0.870999858,0.792701126,0.747095621,0.883964737,0.792701126,0,0,0.013245033,0.156421515,0,0 2015-10,0.153846154,0.153846154,0.469492249,0.435490435,0.320822163,0.51227067,0.435490435,0,0,0.174593618,0.221734358,0,0 2015-11,0.153846154,0.153846154,0.322998151,0.309455976,0.273458445,0.346676197,0.309455976,0,0,0.462974112,0.481888035,0.133333333,0.133333333 2015-12,0.076923077,0.076923077,0.342767743,0.309320309,0.27971403,0.384798666,0.309320309,0,0,0.464780253,0.482436883,0.066666667,0.066666667 2016-01,0.307692308,0.384615385,0.415872564,0.349477683,0.358355675,0.442458899,0.349477683,0,0,0.559903672,0.581229418,0.066666667,0.066666667 2016-02,0,0,0.445455838,0.403744404,0.316353887,0.457469621,0.403744404,0,0,0.54846478,0.568605928,0.066666667,0.066666667 2016-03,0,0,0.471198976,0.400352734,0.317247542,0.508220157,0.400352734,0.142857143,0.142857143,0.604455148,0.628430296,0,0 2016-04,0,0,0.582989617,0.570343237,0.575513852,0.603764594,0.570343237,0.214285714,0.214285714,1,1,0,0
You need to create your line variable: var myLine = svg.append("path"); And then, inside redraw(), changing it according to the option selected: myLine.datum(adata.values) .attr("d", line); Here is a demo plunker: https://plnkr.co/edit/YjGO9TLDBXj13JQuO5bm?p=preview PS: I changed your x-scale range: var x = d3.scaleTime().range([margin.left, width]); And also added a call to redraw() when the code runs for the first time.
svg bar chart fails to render on plnkr
Not sure if this is a plnkr issue or an issue with my code.. although the console is not showing any errors. I am writting a little svg script and it does not render. var w = 300; var h = 100; var padding = 2; var dataset = [5, 10, 14, 20, 25]; var svg = d3.select("body").append("svg").attr("width", w).attr("height", h); svg.selectAll('rect') .data(dataset) .enter() .append('rect') .attr('x', function(d, i) { return i * (w/dataset.length); }) .attr('y', function(d) { return h - (d); }) .attr("width", w/ dataset.length - padding) .attr("height", function(d) { return d; }); Plnkr here: http://plnkr.co/edit/X7KomlmOVS6C0zhNL19b
Run it inside a document.ready or wait till the window is loaded. http://plnkr.co/edit/TmFWndyCgLk7GYEng7XP <!DOCTYPE html> <html> <head> <script data-require="d3#*" data-semver="3.5.3" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script> <link rel="stylesheet" href="style.css" /> <script src="http://code.jquery.com/jquery-2.1.4.min.js"></script> <script src="script.js"></script> </head> <body> <h1>Hello Plunker!</h1> </body> </html> and in the JS $(document).ready(function(){ var w = 300; var h = 100; var padding = 2; var dataset = [5, 10, 14, 20, 25]; var svg = d3.select("body").append("svg").attr("width", w).attr("height", h); console.log('running the plnkr'); svg.selectAll('rect') .data(dataset) .enter() .append('rect') .attr('x', function(d, i) { return i * (w/dataset.length); }) .attr('y', function(d) { return h - (d * 4); }) .attr("width", w/ dataset.length - padding) .attr("height", function(d) { return d * 4; }); });
Change class of one element when hover over another element d3
I have a list of images and a list of image titles. I want to be able to show a hover state (change css) for the title when I mouse over its corresponding image, but I cannot figure out how to connect the two pieces of data. My code is below. I have it so that when you click on the top number the information appears beneath. <!DOCTYPE html> <html> <head> <script src="d3.v2.js"></script> <title>Untitled</title> </head> <body> <script type="text/javascript" > function barStack(d) { var l = d[0].length while (l--) { var posBase = 0, negBase = 0; d.forEach(function(d) { d=d[l] d.size = Math.abs(d.y) if (d.y<0) { d.y0 = negBase negBase-=d.size } else { d.y0 = posBase = posBase + d.size } }) } d.extent= d3.extent(d3.merge(d3.merge(d.map(function(e) { return e.map(function(f) { return [f.y0,f.y0-f.size]})})))) return d } var ratiodata = [[{y:3.3}],[{y:-1.5}]] var imageList = [ [3.3, 28, -1.5, 13, 857, 3, 4, 7, [{paintingfile:"676496.jpg", title:"Dessert1"}, {paintingfile:"676528.jpg", title: "Dessert2"}] ]] var h=400 var w=1350 var margin=25 var color = d3.scale.category10() var div = d3.select("body").append("div") .attr("class", "imgtooltip") .style("opacity", 0); var x = d3.scale.ordinal() .domain(['255']) .rangeRoundBands([margin,w-margin], .1) var y = d3.scale.linear() .range([h-margin,0+margin]) var xAxis = d3.svg.axis().scale(x).orient("bottom").tickSize(6, 0) var yAxis = d3.svg.axis().scale(y).orient("left") barStack(ratiodata) y.domain(ratiodata.extent) var svg = d3.select("body") .append("svg") .attr("height",h) .attr("width",w) svg.selectAll(".series") .data(ratiodata) .enter() .append("g") .classed("series",true) .style("fill","orange") .selectAll("rect").data(Object) .enter() .append("rect") .attr("x",function(d,i) { return x(x.domain()[i])}) .attr("y",function(d) { return y(d.y0)}) .attr("height",function(d) { return y(0)-y(d.size)}) .attr("width",x.rangeBand()); svg.selectAll("text") .data(imageList) .enter() .append("text") .text(function(d) { return d[0]; }) .attr("x", function(d, i) { return x(x.domain()[i]) + x.rangeBand() / 2; }) .attr("y", function(d) { return h - (32.1100917431*d[0] +150); }) .attr("font-size", "16px") .attr("fill", "#000") .attr("text-anchor", "middle") //.on("click", function(d) {console.log(d[1]);}) .on("click", function(d) { //Update the tooltip position and value d3.selectAll("ul") .remove(); d3.selectAll("li") .remove(); d3.select("#PaintingDetails") .append("ul") .selectAll("li") .data(d[8]) .enter() .append("li") .text(function(d){ return (d.title); }); d3.select("#imageBox") .append("ul") .selectAll("li") .data(d[8]) .enter() .append("li") .classed("Myimageslist",true) .append("img") .classed("Myimages",true) .attr("src", function(d){ return ("http://images.tastespotting.com/thumbnails/" + d.paintingfile); }) .attr("align", "top"); d3.select(".Myimages") .on("mouseover", function(){ d3.select("#PaintingDetails") .selectAll("li") .classed("selected", true) }); }); svg.append("g").attr("class","axis x").attr("transform","translate (0 "+y(0)+")").call(xAxis); // svg.append("g").attr("class","axis y").attr("transform","translate ("+x(margin)+" 0)").call(yAxis); </script> <div id="PaintingDetails"></div> <div id="imageBox"></div> </body> </html>
The quick and dirty solution would be to simply use the index of the data element to figure out which title matches which image: d3.selectAll(".Myimages") .on("mouseover", function(d, i) { d3.select("#PaintingDetails") .selectAll("li") .classed("selected", function(e, j) { return j == i; }) });