我们正在从clojurescript渲染数据地图,它有一种奇怪的行为。数据图具有从clojurescript传递的元素,但它的宽度和高度= 0。
<div id="cash-balance-globe" class="cash-balance-globe tile-date-info" style="width: 361px;height: 187px;">
<svg width="0" data-width="0" class="datamap" height="0" style="overflow: hidden;"><g id="" class="datamaps-subunits">
传递元素的代码是:
(defn cash-balance-globe
^{:externs [[globe.render] [globe.highlightBubble]]}
[cash-balance-by-country selected-country-atom]
(let [globe-data (doall (map #(assoc %
:name (get % "country")
:value (get % "balance")) cash-balance-by-country))]
(letfn [(reagent-render [] (let [country-selected? (not (nil? @selected-country-atom))
selected-country-cash-balance (first (filter #(= (:name %) @selected-country-atom) globe-data))]
[:div
(if country-selected?
[selected-country-breakdown-table selected-country-cash-balance]
[:div "Select country to see detail"])
[:div {:id "cash-balance-globe"
:class "cash-balance-globe tile-date-info"
:style {:width "360px" :height "187px"}}]]))
(component-did-mount [] (let [set-selected-country (fn [x]
(reset! selected-country-atom
(get (js->clj x) "name")))
globe-container (js/document.getElementById "cash-balance-globe")]
(.. js/globe
(render globe-container (clj->js globe-data) set-selected-country popup-template #js [7 20]))
(when (not (nil? @selected-country-atom))
(.. js/globe
(highlightBubble @selected-country-atom globe-container)))
))]
(r/create-class
{:reagent-render reagent-render
:component-did-mount component-did-mount}))))
这里调用的globe.js具有以下渲染功能:
ns.render = function(container, countriesData, onCountrySelect, popupText, radiusRange) {
var values = function(d) { return d.value; };
var radiusScale = d3.scale.linear()
.domain([0,d3.max(countriesData, values)])
.range(radiusRange);
var globalMap = new Datamap({
element: container,
scope:'world',
geographyConfig: {
borderColor:'#818181',
popupOnHover: false,
highlightOnHover: false
},
fills: countryFills()
});
我们现在已经坚持了几天。当页面重新呈现时,它只在第一次不起作用时起作用。
此外,渲染功能是使div元素具有正确的宽度和高度,我们通过console.log检查
答案 0 :(得分:0)
你能更好地解释这个函数render
的来源吗?
globe-container(js / document.getElementById&#34; cash-balance-globe&#34;)
这个全局容器无法通过反应(无论是试剂还是任何反应包装器)进行渲染,如果这是你正在做的事情。如果这个dom元素实际上呈现了svg,那么你需要提供(clj->js globe-data)
中返回的内容的信息,如果这是你传递的属性?
答案 1 :(得分:0)
所以我终于找到了答案。问题是,数据图中的默认值没有从Clojurescript调用中调用。所以我们必须从render函数本身调用默认值:
ns.render = function(container, countriesData, onCountrySelect, popupText, radiusRange) {
var values = function(d) { return d.value; };
var radiusScale = d3.scale.linear()
.domain([0,d3.max(countriesData, values)])
.range(radiusRange);
var height = 168;
var width = 360;
var globalMap = new Datamap({
element: container,
scope:'world',
height: height,
width: width,
"data-width": width,
setProjection: function() {
var projection = d3.geo.equirectangular()
.scale(width / 2 / 3.1415926535)
.translate([width / 2, height / 2]);
var path = d3.geo.path().projection( projection );
return {path: path, projection: projection};
},
fills: countryFills()
});