D3 Examples - Russian military conflicts (demo)

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<!DOCTYPE html>
<html>
<meta charset="utf-8">
​
<!-- Example based on https://bl.ocks.org/mbostock/3887118 -->
<!-- Tooltip example from https://www.d3noob.org/2013/01/adding-tooltips-to-d3js-graph.html -->
​
<style>
body {
  font: 11px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.x.axis path {
    stroke: #bdbdbd;
    stroke-width:2;
  }
.x.axis .tick line {
    stroke: #bdbdbd;
    stroke-width:2;
  }
​
.dot {
  stroke: #000;
}
​
.hlines {
  stroke: #f0f0f0;
  opacity: 1;
  stroke-width:2;
}
​
.tooltip {
  position: absolute;
  width: 200px;
  height: 28px;
  pointer-events: none;
}
</style>
<body>
<h1>История военных конфликтов России (demo)</h1>
<script src="https://d3js.org/d3.v3.min.js"></script>
​
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
/* 
 * value accessor - returns the value to encode for a given data object.
 * scale - maps value to a visual display encoding, such as a pixel position.
 * map function - maps from data value to display value
 * axis - sets up axis
 */ 
​
// setup x 
var xValue = function(d) { return d.Beg%100;}, // data -> value
    xScale = d3.scale.linear().range([0, width]), // value -> display
    xMap = function(d) { return xScale(xValue(d));}, // data -> display
    xAxis = d3.svg.axis().scale(xScale).orient("bottom");
​
// setup y
var yValue = function(d) { return -Math.trunc(d.Beg/100);}, // data -> value
    yScale = d3.scale.linear().range([height, 0]), // value -> display
    yMap = function(d) { return yScale(yValue(d));}, // data -> display
    yAxis = d3.svg.axis().scale(yScale).orient("left").tickValues([-14, -15, -16, -17, -18, -19]).tickFormat(function(d) {
      return -d;
    }).tickSize(10,1);
​
var colors = ["#e41a1c","#AAAAAA","#C9A61A"];
​
// setup fill color
var cValue = function(d) { return d.Result;};
var color = function(d) {
  
  return colors[+d];
};
    //color = d3.scale.category10();
​
// add the graph canvas to the body of the webpage
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 + ")");
​
// add the tooltip area to the webpage
var tooltip = d3.select("body").append("div")
    .attr("class", "tooltip")
    .style("opacity", 0);
​
​
​
// load data
d3.csv("wars.csv", function(error, data) {
​
  // change string (from CSV) into number format
  data.forEach(function(d) {
​
    d.Beg = +d.Beg;
    d.End = +d.End;
    d.Length = +d.Length;
    d.Murdered = +d.Murdered;
    
  });
​
  data = data.sort(function(a, b){
      return b["Murdered"]-a["Murdered"];
  });
​
​
  
  // don't want dots overlapping axis, so add in buffer to data domain
  //xScale.domain([d3.min(data, xValue)-1, d3.max(data, xValue)+1]);
  xScale.domain([-1, 101]);
  yScale.domain([d3.min(data, yValue)-0.5, d3.max(data, yValue)+1]);
​
  // x-axis
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
​
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("Годы");
​
  // y-axis
  svg.append("g")
      .attr("class", "y axis")
      .attr("transform", "translate(0,-10)")
      .style("stroke-width",0)
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end"); 
​
  // draw lines
​
  years = [14,15,16,17,18,19];
​
  svg.selectAll(".hlines")
    .data(years)
    .enter()
    .append("line")
    .classed("hlines",true)
    .attr('x1', xScale(-5))
    .attr('y1',function(d) {
      return yScale(-d);
    })
    .attr('x2',xScale(100))
    .attr('y2',function(d) {
      return yScale(-d);
    });
​
console.log(data);
  // draw dots
  svg.selectAll(".dot")
      .data(data)
    .enter().append("circle")
      .attr("class", "dot")
      .attr("r", function(d) {
        return 3*d.Murdered;
      })
      .style("stroke-width", 0)
      .attr("cx", xMap)
      .attr("cy", yMap)
      .style("fill", function(d) { return color(cValue(d));})
      .style("opacity",0.5) 
      .on("mouseover", function(d) {
            d3.select(this).transition().duration(200)
            .style("opacity", .7);
          tooltip.transition()
               .duration(200)
               .style("opacity", .8);
          tooltip.html(d.Conflict + "(" + d.Beg 
            + "-" + d.End + ")" +"<br/> Погибло: " +Math.trunc(d.Murdered*10000))
               .style("left", (d3.event.pageX + 5) + "px")
               .style("top", (d3.event.pageY - 28) + "px");
      })
      .on("mouseout", function(d) {
        d3.select(this).transition().duration(200)
            .style("opacity", .5);
          tooltip.transition()
               .duration(500)
               .style("opacity", 0);
      });
​
});
​
</script>
</body>
</html>
    