Axis Grid by pstuffa

index.html

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    

  </style>
</head>

<body>
  <div id="chart"> </div>
	
  <script>
    
    var margin = {top: 60, right: 60, bottom: 60, left: 60},
        width = window.innerHeight - margin.left - margin.right,
        height = window.innerHeight - margin.top - margin.bottom,
        numTicks = 10,
        numDashes = 5,
        numDots = 20;
        tickSpace = 8;

    var y = d3.scaleLinear()
        .range([height, 0])
        .domain([-1,1])

    var x = d3.scaleLinear()
        .range([0, width])
        .domain([-1,1])

    var svg = d3.select("#chart").append("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
     	.style("filter", "url(#filter)")
    .append("g")
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");


    svg.append("g")
        .attr("class", "x axis")
        .attr("transform", "translate(0," + height + ")")
        .call(d3.axisBottom(x).tickSize(-height).ticks(numTicks))
        .selectAll("line")
        .style("stroke-dasharray", function(d,i) { 
            var dashArray = []
            for (var k = 0; k < numTicks; k += 1) {
                dashArray.push((height/numTicks - (tickSpace/2) - (k > 0 ? (tickSpace/2) : 0)));
                dashArray.push(tickSpace)
            }      
            return dashArray.join(",") })

    svg.append("g")
        .attr("class", "y axis")
        .call(d3.axisLeft(y).tickSize(-width).ticks(numTicks))
        .selectAll("line")
        .style("stroke-dasharray", function(d,i) { 
            var dashArray = []
            for (var k = 0; k < numTicks; k += 1) {
                dashArray.push((width/numTicks - (tickSpace/2) - (k > 0 ? (tickSpace/2) : 0)));
                dashArray.push(tickSpace)
            }         
            return dashArray.join(",") })

     svg.selectAll(".verticalDashes")
        .data(d3.range(numTicks*numDashes).map(Object))
      .enter().append("line")
        .attr("class", "verticalDashes")
        .attr("y1", function(d, i) { return i*(height/numTicks/numDashes); } )
        .attr("y2", function(d, i) { return i*(height/numTicks/numDashes); } )
        .attr("x1", x(-.025))
        .attr("x2", x(.025))
        .style("stroke", "#000")
        .style("stroke-dasharray", function() {
            var unit = x(.025) - x(0);
            return (unit - (tickSpace/4)) + "," + (tickSpace/2) + "," + (unit - (tickSpace/4))
        })

     svg.selectAll(".horizontalDashes")
        .data(d3.range(numTicks*numDashes).map(Object))
      .enter().append("line")
        .attr("class", "horizontalDashes")
        .attr("x1", function(d, i) { return i*(width/numTicks/numDashes); } )
        .attr("x2", function(d, i) { return i*(width/numTicks/numDashes); } )
        .attr("y1", y(-.025))
        .attr("y2", y(.025))
        .style("stroke", "#000")
        .style("stroke-dasharray", function() {
            var unit = x(.025) - x(0);
            return (unit - (tickSpace/4)) + "," + (tickSpace/2) + "," + (unit - (tickSpace/4))
        })

     svg.selectAll(".rowOne dots")
        .data(d3.range(numTicks*numDots).map(Object))
      .enter().append("circle")
        .attr("class", "rowOne dots")
        .attr("cx", function(d, i) { return i*(width/numTicks/numDots); } )
        .attr("cy", function(d, i) { return i % 2 == 0 ? y(.28) : y(-.28) })
        .attr("r", 1);

     svg.selectAll(".rowTwo")
        .data(d3.range(numTicks*numDots).map(Object))
      .enter().append("circle")
        .attr("class", "rowTwo dots")
        .attr("cx", function(d, i) { return i*(width/numTicks/numDots); } )
        .attr("cy", function(d, i) { return i % 2 == 0 ? y(.44) : y(-.44) })
        .attr("r", 1);

  </script>
</body>