How to add filled sections to SVG circles using d3.js

I am generating some SVG circles using d3.js. I'm able to generate them, but I can't figure how to divide them into 4 equal sections and color fill each section. I'm using version 4 of d3.js.

Here is a snippet of my javascript from my fiddle:

var nodes = [

  {"type":'family',"id":'f1',"name":'', "image":""},
  {"type":'person',"id":'p1',"name":'fred flintstone',"age": 39, "relationship": "father","sex":' '},
  {"type":'person',"id":'p2',"name":'wilma flintstone',"age": 36, "relationship": "mother","sex":'m'},
  {"type":'person',"id":'p3',"name":'pebbles flintstone',"age": 4 , "relationship": "daughter","sex":'mf'},
  {"type":'person',"id":'p4',"name":'dino',"age": 8 ,"relationship": "pet","sex":'m'},


  {"type":'family',"id":'f3',"name":'', "image":""},
  {"type":'person',"id":'p5',"name":'barney rubble',"age": 43, "relationship": "father","sex":'m'},
  {"type":'person',"id":'p6',"name":'betty rubble',"age": 41, "relationship": "mother","sex":'f'},
  {"type":'person',"id":'p7',"name":'bam bam rubble',"age": 4, "relationship": "son","sex":'m'},


]

//more code in my fiddle

  my.width = function(value) {
    if (!arguments.length) return width;
    width = value;
    return my;
  };

  my.nodes = function(value) {
    if (!arguments.length) return nodes;
    nodes = value;
    return my;
  };

  my.links = function(value) {
    if (!arguments.length) return links;
    links = value;
    return my;
  };

  my.height = function(value) {
    if (!arguments.length) return height;
    height = value;
    return my;
  };

  return my;
}

Thanks much in advance.

https://jsfiddle.net/pqk8y3mb/

from How to add filled sections to SVG circles using d3.js