Horizontal scroll SVG

Question

I am trying to make an SVG graph with D3 ( https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js ) where the bandwidth is determined manually and the thing has horizontal scrolling ..

I have a violin working here

https://jsfiddle.net/bikrantsharma/zw264tfc/12/

This is how my scale is determined

var barWidth = 30,
  paddingFactor = 2.2,
  responsiveDIVHeight = 300,
  responsiveDIVWidth = tempData.length * barWidth * paddingFactor;



var x = d3.scale.ordinal().rangeRoundBands([0, responsiveDIVWidth], 0.5)
  .domain(tempData.map(function(d) {
    return d.Type
  })),
  y = d3.scale.linear().rangeRound([responsiveDIVHeight, 0])
  .domain([0, d3.max(tempData, function(d) {
    return (d.Count + 10);
  })]),

There are two problems I need help with:

• The bars are flipped in the opposite direction. How to make div flip or transform columns?

• The height of the bar is slightly less than the actual value. So, for example, if column “5”, the height of the bar returns as 4.8 or something else. What is the problem?

Answer 1

. : SVG, , SVG. SVG? .

SVG . , , float: left <div>, , , , overflow-x: scroll <div>, .

:

var tempData = [];
for (var i = 1; i < 30; i++) {
  var obj = {

    "Id": 1,
    "Type": 'A' + i,
    "Count": 5
  };
  tempData.push(obj);
}


var barWidth = 30,
  paddingFactor = 2.2,
  padding = 20,
  responsiveDIVHeight = 300,
  responsiveDIVWidth = tempData.length * barWidth * paddingFactor;

var x = d3.scale.ordinal().rangeRoundBands([0, responsiveDIVWidth], 0.5)
  .domain(tempData.map(function(d) {
    return d.Type
  })),
  y = d3.scale.linear().rangeRound([responsiveDIVHeight - padding, padding])
  .domain([0, d3.max(tempData, function(d) {
    return (d.Count + 10);
  })]),
  xAxis = d3.svg.axis().scale(x).orient('bottom'),
  yAxis = d3.svg.axis().scale(y).orient('left');


var svgY = d3.select('#verticalSVG')
  .append('svg')
  .attr('height', responsiveDIVHeight)
  .attr("width", 50);

svgY.append('g')
  .attr('class', 'y axis')
  .call(yAxis)
  .attr('dx', '-0.3em')
  .attr('transform', "translate(50, 0)");;

var svgX = d3.select('#horizontalSVG')
  .append('svg')
  .attr('width', responsiveDIVWidth)
  .attr('height', responsiveDIVHeight);

svgX.append('g')
  .attr('class', 'x axis')
  .attr('transform', "translate(0," + (responsiveDIVHeight - padding) + ")")
  .call(xAxis)
  .selectAll('text')
  .attr('dx', '-0.8em')
  .attr('dy', '-.15em')
  .attr('transform', function(d) {
    return "rotate(-60)"
  });


var startPoint = 0;

var bar = svgX.selectAll('.bar')
  .data(tempData)
  .enter()
  .append('rect')
  .attr('y', function(d) {
    return y(d.Count)
  })
  .attr('x', function(d) {
    return x(d.Type)
  })
  .attr('width', barWidth)
  .attr('height', function(d) {
    return responsiveDIVHeight - y(d.Count) - padding
  })

.legend-main-div {
  padding: 2%;
  max-height: 150px;
  overflow-y: scroll;
  border: 1px solid blue;
}

.axis line,
.axis path {
  fill: none;
  stroke: black;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<div class="row">
  <div class="col-md-12">

    <div id="verticalSVG" style="float:left">

    </div>
    <div id="horizontalSVG" style="overflow-x:scroll">

    </div>
  </div>

</div>

Hide result