read OpenLayers

22 February 2014

###.\OpenLayers\lib\OpenLayers\Layer\Grid.js

calc tile

initGriddedTiles:function(bounds) {
    ...

      this.addTile(tileBounds, px);
    ...
}

###.\OpenLayers\lib\OpenLayers\TileManager.js draw tile

drawTilesFromQueue: function(map) {
     ...
}

###.\OpenLayers\lib\OpenLayers\Map.js

map setCenter call moveto

map getExtent call baseLayer getExtent Layer call

this.map.calculateBounds();