anchor.diff:          .attr('fill', color)
           .attr('r', function(d) { return 1; });
       }
  -
  -  }
  -
  +    return true;
  +  }
  +
  
positive.code: 
    function shoot(province_id, isDead, order) {
      var p = province[province_id];
      if (!p) return;
      var p_data = [p];
      var dv = Math.log(order+1) * 2;
  
      var color = isDead ? dead_color.hsl().toString() : injured_color.hsl().toString();
  
      var circle = thailand.selectAll(".accident-"+order)
        .data(p_data)
        //- .data(province_data)
  
negative.code:                       label Vehicle
                        ul.filter-options
                          li
                            a(href='#', data-filter='vehicle', data-value='none') none
                          li
                            a(href='#', data-filter='vehicle', data-value='motorcycle') motocycle
                          li
  