Hi there,

This javascript library could be implemented by shortcodes for example (taken here):

// Example shortcode
function d3_sunburst_shortcode( $atts ) {
    wp_enqueue_script( 'd3', 'https://d3js.org/d3.v4.min.js' );
    
    ?>
    <script>    
    var width = 960,
        height = 700,
        radius = Math.min(width, height) / 2,
        color = d3.scale.category20c();
    
    var svg = d3.select("body").append("svg")
        .attr("width", width)
        .attr("height", height)
      .append("g")
        .attr("transform", "translate(" + width / 2 + "," + height * .52 + ")");
    
    var partition = d3.layout.partition()
        .sort(null)
        .size([2 * Math.PI, radius * radius])
        .value(function(d) { return 1; });
    
    var arc = d3.svg.arc()
        .startAngle(function(d) { return d.x; })
        .endAngle(function(d) { return d.x + d.dx; })
        .innerRadius(function(d) { return Math.sqrt(d.y); })
        .outerRadius(function(d) { return Math.sqrt(d.y + d.dy); });
    
    d3.json("flare.json", function(error, root) {
      if (error) throw error;
    
      var path = svg.datum(root).selectAll("path")
          .data(partition.nodes)
        .enter().append("path")
          .attr("display", function(d) { return d.depth ? null : "none"; }) // hide inner ring
          .attr("d", arc)
          .style("stroke", "#fff")
          .style("fill", function(d) { return color((d.children ? d : d.parent).name); })
          .style("fill-rule", "evenodd")
          .each(stash);
    
      d3.selectAll("input").on("change", function change() {
        var value = this.value === "count"
            ? function() { return 1; }
            : function(d) { return d.size; };
    
        path
            .data(partition.value(value).nodes)
          .transition()
            .duration(1500)
            .attrTween("d", arcTween);
      });
    });
    
    // Stash the old values for transition.
    function stash(d) {
      d.x0 = d.x;
      d.dx0 = d.dx;
    }
    
    // Interpolate the arcs in data space.
    function arcTween(a) {
      var i = d3.interpolate({x: a.x0, dx: a.dx0}, a);
      return function(t) {
        var b = i(t);
        a.x0 = b.x;
        a.dx0 = b.dx;
        return arc(b);
      };
    }
    
    d3.select(self.frameElement).style("height", height + "px");
    
    </script>
    <?php
}
add_shortcode( 'd3_sunburst', 'd3_sunburst_shortcode', 100 );

You can figure out other ways what fits best for you.

Hi V,

Calcium uses a specific plugin to manage shortcodes, which now is quite old and deprecated. The shortcode I gave is can be implemented simply, just put that code in PHP and everytime you use 

[d3_sunburst]

It will show the JS code. 

As for other files, I am not sure how many types of D3 documents you have or how can they be included?

Have you checked for plugins that provide D3 functionality:

https://wordpress.org/plugins/wp-d3/

https://premium.wpmudev.org/blog/beyond-pie-charts-add-mind-blowing-visualizations-to-wordpress/