js/leaflet.markercluster.js
function () {
    if (this._group._spiderfied === this || this._group._inZoomAnimation) {
      return;
    }

    var childMarkers = this.getAllChildMarkers(),
      group = this._group,
      map = group._map,
      center = map.latLngToLayerPoint(this._latlng),
      positions;

    this._group._unspiderfy();
    this._group._spiderfied = this;

    //TODO Maybe: childMarkers order by distance to center

    if (childMarkers.length >= this._circleSpiralSwitchover) {
      positions = this._generatePointsSpiral(childMarkers.length, center);
    } else {
      center.y += 10; //Otherwise circles look wrong
      positions = this._generatePointsCircle(childMarkers.length, center);
    }

    this._animationSpiderfy(childMarkers, positions);
  }
function () {
    if (this._group._spiderfied === this || this._group._inZoomAnimation) {
      return;
    }

    var childMarkers = this.getAllChildMarkers(),
      group = this._group,
      map = group._map,
      center = map.latLngToLayerPoint(this._latlng),
      positions;

    this._group._unspiderfy();
    this._group._spiderfied = this;

    //TODO Maybe: childMarkers order by distance to center

    if (childMarkers.length >= this._circleSpiralSwitchover) {
      positions = this._generatePointsSpiral(childMarkers.length, center);
    } else {
      center.y += 10; //Otherwise circles look wrong
      positions = this._generatePointsCircle(childMarkers.length, center);
    }

    this._animationSpiderfy(childMarkers, positions);
  }
function ( ) { if ( this . _group . _spiderfied === this || this . _group . _inZoomAnimation ) { return ; } var childMarkers = this . getAllChildMarkers ( ) , group = this . _group , map = group . _map , center = map . latLngToLayerPoint ( this . _latlng ) , positions ; this . _group . _unspiderfy ( ) ; this . _group . _spiderfied = this ; //TODO Maybe: childMarkers order by distance to center if ( childMarkers . length >= this . _circleSpiralSwitchover ) { positions = this . _generatePointsSpiral ( childMarkers . length , center ) ; } else { center . y += 10 ; //Otherwise circles look wrong positions = this . _generatePointsCircle ( childMarkers . length , center ) ; } this . _animationSpiderfy ( childMarkers , positions ) ; }
show spiral instead of circle from this marker count upwards. 0 -> always spiral; Infinity -> always circle
show spiral instead of circle from this marker count upwards . 0 - > always spiral ; Infinity - > always circle