单张样式功能取2个参数(Leaflet styling function to take 2 parameters)

单张样式功能取2个参数(Leaflet styling function to take 2 parameters)

我实际上正在制作一张传单地图，它根据区域名称的长度来显示不同颜色的区域。 我有功能样式，返回一个特定的样式，并采用功能（从json地图）作为输入。

var geojson = L.geoJson(data,{style: styling}).addTo(map); function styling(feature) { return { fillColor: getColor(feature.properties.NAME.length), weight: 2, opacity: 1, color: 'white', dashArray: '3', fillOpacity: 0.7 }; }

我实际上正在寻找的是将另一个参数传递给函数样式，但我不知道如何实现这一点。 因为自动检索第一个参数，我应该做样式（第二参数）吗？

I'm actually working on a leaflet map that dispays regions in different colors accordings to the lenght of the name of the region. I have the function stylings that returns a specific styling and that takes feature (from json map) as input.

var geojson = L.geoJson(data,{style: styling}).addTo(map); function styling(feature) { return { fillColor: getColor(feature.properties.NAME.length), weight: 2, opacity: 1, color: 'white', dashArray: '3', fillOpacity: 0.7 }; }

What I'm actually looking for is passing another parameter to the function styling, but I don't know how to achieve this. shall I do something like styling (,2nd Parameter) since the first parameter is retrieved automatically ?

最满意答案

只需使用一个用第二个参数调用“样式”功能的函数。

var geojson = L.geoJson(data,{style: function(feature){styling(feature, "hello")}}).addTo(map);

示例： https ： //jsfiddle.net/70jryouy/1/

Just use a function that recall the "styling" function with the second parameter.

var geojson = L.geoJson(data,{style: function(feature){styling(feature, "hello")}}).addTo(map);

Example: https://jsfiddle.net/70jryouy/1/