jquery.51ditu.js

google地图

(  
    function($)
    {
        $.ltmap = $.ltmap || {};
        
        $.fn.extend(
        {
            InitMap : function(parameters) {
                parameters = parameters || {};
                this.each(function(i){
                    $.ltmap.Init(this,parameters);
                });              
            },
            OpenInfoWindow : function(parameters) {
                parameters = parameters || {};
                var clickMarker = null;
                this.each(function(i){
                    clickMarker = $.ltmap.OpenWindow(this,parameters);
                });
                return clickMarker;
            },
            RemoveOverlay : function(overlay) {
                this.each(function(i){
                    $.ltmap.RemoveOverlay(this, overlay);
                });  
            }
        });
        
        $.extend($.ltmap,
            {
                settings : 
			    {
				    zoom : 7,
				    maptype : "h",
				    overview : false,
				    navscale : "small",
				    center:
                    {
                        lat : 30.898817,
                        lng : 108.598643,
                        zoom : 7
                    }                 
			    },
                Init : function(obj,parameters)
                {
                    var map = this.GetMap(obj);
                    var maptype;
//                    $(obj).css(this.settings.css);
//                    if(parameters.css) 
//                        $(obj).css(parameters.css);
                    
                    if(parameters.center)
                        map.centerAndZoom(new LTPoint(parameters.center.lng * 100000, parameters.center.lat * 100000), parameters.center.zoom);
                    else
                        map.centerAndZoom(new LTPoint(this.settings.center.lng * 100000, this.settings.center.lat * 100000), this.settings.center.zoom);
                        
                    if(parameters.navscale)
                    {
                        if(parameters.navscale == "large")
                            map.addControl(new LTStandMapControl());
                        if(parameters.navscale == "small")
                            map.addControl(new LTSmallMapControl());
                    }
                    else
                    {
                        if(this.settings.navscale == "large")
                            map.addControl(new LTStandMapControl());
                        if(this.settings.navscale == "small")
                            map.addControl(new LTSmallMapControl());
                    }                 
                    map.handleKeyboard(); //键盘操作支持
                    map.handleMouseScroll();//鼠标滚轮支持
                },
                GetMap : function(obj)
                {
                    var map = $.data(obj, "map");
				    if (!map)
				    {
				        map = new LTMaps(obj);
					    $.data(obj, "map", map);
				    }
				    return map;
                },
                OpenWindow : function(obj,parameters)
                {
                    var map = $.data(obj, "map");

                    var clickMarker = null;
                    var infoWin = null;
                    var icon = null;
                    
                    if(parameters.icon)
                    {
                        icon = new LTIcon();
                        icon.setImageUrl(parameters.icon.url);         
                        var width = (parameters.icon.width == null) ? 20 : parameters.icon.width;
                        var height = (parameters.icon.height == null) ? 20 : parameters.icon.height;
                        
                        icon.setWidth(width);
                        icon.setHeight(height);
                    }
                    if(parameters.point)
                    {
                        var point = new LTPoint(parameters.point.lng * 100000, parameters.point.lat * 100000);
                        if(icon == null)
                            clickMarker = new LTMarker(point);
                        else
                            clickMarker = new LTMarker(point,icon);
                            
                        map.addOverLay(clickMarker);
                        infoWin = new LTInfoWindow(clickMarker);
                        infoWin.setLabel(parameters.info); 
                        map.addOverLay(infoWin);
                        map.moveToCenter(point);
                    }
                    return [clickMarker,infoWin];
                },
                RemoveOverlay : function(obj, overlay)
                {
                    var map = $.data(obj, "map");
                    map.removeOverLay(overlay[0]);
                    map.removeOverLay(overlay[1]);
                }
            }
        );
    }
)(jQuery);