code: function _drawLineStrip(points, color) {
          if (points.length < 2) {
              console.error('Line strips must have at least 2 points.');
              return;
          }
  
          var p = new Primitive();
  
          p.vertices = points;
          p.color = toColor(color);
  
          renderer.addPrimitive(p);
      }
docs: Draws a strip of connected lines using the specified points[].
  
  Each point is a THREE.Vector3 object.