有没有办法将结果svg jvectormap保存为png?我希望用户能够点击保存或下载按钮,并能够以某种图像格式将地图下载到他们的桌面。
答案 0 :(得分:1)
有几种方法可以做到这一点,这是一种最有效的方式(通过使用canvg), 这是一个working example on JSfiddle..
$(function(){
$('#world-map').vectorMap({
map: 'world_mill_en',
backgroundColor: 'white',
normalizeFunction: 'polynomial',
regionsSelectable: true,
regionsSelectableOne: true,
zoomOnScroll: true,
zoomButtons: true,
regionStyle: {
initial: {
fill: "red",
"fill-opacity": 1,
stroke: "none",
"stroke-width": 0,
"stroke-opacity": 1
},
hover: {
fill: "blue",
"fill-opacity": 1
},
selected: {
fill: "#EC6602",
"fill-opacity": 1
},
selectedHover: {
fill: "#EC6602",
"fill-opacity": 1
}
},
onRegionClick: function(e, country){
var map = $("#world-map").vectorMap("get", "mapObject");
$("#world-map").vectorMap("set", "focus", country);
}
});
});
function saveImage() {
var oSerializer = new XMLSerializer();
var sXML = oSerializer.serializeToString(document.querySelector("#world-map svg"));
canvg(document.getElementById('canvas'), sXML,{ ignoreMouse: true, ignoreAnimation: true })
var imgData = canvas.toDataURL("image/png");
window.location = imgData.replace("image/png", "image/octet-stream");
// You can use http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js
// if you want to force filename.ext
}