kartograph.js如何通过路径ID获取元素？

我使用的是kartograph.js，我有几个连接区域/路径的svg，我想突出显示点击区域的颜色，然后在另一个div上显示关于它的其他信息。点击新形状时，我无法消除形状的突出显示。我怎么能做到这一点？谢谢！kartograph.js如何通过路径ID获取元素？

var previd=0; 
var prevpath; 


function mapLoaded(map) { 
    map.addLayer('mylayer', { 

    tooltips: function(d) { 
    return [d.watershedname,"area: "+d.area]; 
    }, 


    styles: { 
     stroke: '#aaa', 
     fill: '#f6f4f2' 
    }, 

click: function(d, path) { 
     // @path is a Raphael.element, do with it whatever you like 
     // @d holds the data attached to each path 

    //retrieve and set text to other div 
    $("#infoname").text(d.watershedname); 
    $("#infoarea").text(numberWithCommas(Math.floor(d.area))+" hectares"); 
    //highlight the selected path 
    path.attr('fill', 'red'); 



    //i'm trying to get the previous path by id here 
    //so i can remove the previous highlight 
    //doesn't work 

    prevpath =mylayer.getById(previd); 
    prevpath.attr('fill','blue'); 

    //set the new id for later access 
    previd=path.attr('id'); 

    } 

});//end of add layer 


}//end of mapLoaded

来源

2014-12-05 boydukot

我知道了ID，我使用了Layer.getPaths（{column：value}）; var templayer = map.getLayer（'mylayer'）。getPaths（{watershedname：selected}）; templayer.forEach（函数（条目）{ //console.log(entry['data'].watershedname）; 条目[ 'svgPath'] ATTR（ '填充'， '＃f6f4f2'）; }）; – boydukot 2014-12-10 02:26:35

II获得了ID，我使用了Layer.getPaths（{column：value}）;



    var templayer = map.getLayer('mylayer').getPaths({watershedname:selected}); 

    templayer.forEach(function(entry) { 
     entry['svgPath'].attr('fill','#f6f4f2'); 
    });

来源

2014-12-10 02:39:57 boydukot

kartograph.js如何通过路径ID获取元素？

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