如何更改base64格式的svg img的颜色? [英] how can I change color of an svg img in base64 format?
本文介绍了如何更改base64格式的svg img的颜色?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个Svg img与 base64
格式,并试图改变它的颜色。有没有人有任何指点如何做到这一点?我发现了一些关于< path>
元素,但是事实上 svg
img在 base64
字符串我不知道如何使用它。任何人都可以帮助我或指向正确的方向?
< img src =data:image / svg + xml; base64,PHN + Q3JlYXRlZCBieSBMYXphciBOaWtvbGljPC90ZXh0Pjx0ZXh0IHg9IjAuMCIgeT0iMTIyLjUiIGZvbnQtc2l6ZT0iNS4wIiBmb250LXdlaWdodD0iYm9sZCIgZm9udC1mYW1pbHk9IkhlbHZldGljYSBOZXVlLCBIZWx2ZXRpY2EsIEFyaWFsLVVuaWNvZGUsIEFyaWFsLCBTYW5zLXNlcmlmIiBmaWxsPSIjMDAwMDAwIj5mcm9tIHRoZSBOb3VuIFByb2plY3Q8L3RleHQ + PC9zdmc +>
解决方案
由于您未能澄清,如果无法修改原始文件或必须在客户端执行,我建议
< h2>以编程方式处理:
- 查找
< img>
- 从
img.src
剥离data:image ...
编码的SVG。 - 使用 atob
- 创建一个元素,仅用于查找
< path>
- 设置填充路径。
- 附加新图片或替换当前图片。
示例:
< img>通过Idvar img = document.getElementById(target); // Stripdata:image / svg + xml; base64,得到编码SVGvar encoded = img.src.substring(26); //解码base64var decoded = atob (encoding); //从解码的SVGvar创建一个HTML元素wrapper = document.createElement('div'); wrapper.innerHTML = decoded; var newSvg = wrapper.firstChild; //查找< path&并获取refvar innerPath = newSvg.getElementsByTagName('path')[0]; //设置新的colorinnerPath.setAttribute(fill,#FF0000); //显示修改的imagingocument.body.appendChild(newSvg);
< img id =targetsrc =data :图像/ SVG + XML; BASE64,PHN + Q3JlYXRlZCBieSBMYXphciBOaWtvbGljPC90ZXh0Pjx0ZXh0IHg9IjAuMCIgeT0iMTIyLjUiIGZvbnQtc2l6ZT0iNS4wIiBmb250LXdlaWdodD0iYm9sZCIgZm9udC1mYW1pbHk9IkhlbHZldGljYSBOZXVlLCBIZWx2ZXRpY2EsIEFyaWFsLVVuaWNvZGUsIEFyaWFsLCBTYW5zLXNlcmlmIiBmaWxsPSIjMDAwMDAwIj5mcm9tIHRoZSBOb3VuIFByb2plY3Q8L3RleHQ + PC9zdmc +>
注意:
10
编辑:Muplipath方法
var paths = newSvg.getElementsByTagName ('路径');
[] .forEach.call(paths,function(path){
path.setAttribute(fill,#FF0000);
});
I have an Svg img with in a base64
format and trying to change the color of it. Does anyone have any pointers of how to do this? I found something about the <path>
element, but do to the fact that the svg
img is in a base64
string I'm not sure of how to use it. Can anyone help me or point me in the right direction?
<img src="data:image/svg+xml;base64,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">
解决方案
As you do not clarified if can't modify the original file or if must do it on client-side, I propose a
Programmatically approach:
- Lookup the
<img>
- From
img.src
strip"data:image..."
, to extract Base64 encoded SVG. - Decode it using atob
- Create an element, just for find the
<path>
- Set fill on path.
- Append the new Image or Replace current one.
Example:
// Lookup the <img> by Id
var img = document.getElementById("target");
// Strip "data:image/svg+xml;base64," to get encoded SVG
var encoded = img.src.substring(26);
// Decode base64
var decoded = atob(encoded);
// Create an HTML element from decoded SVG
var wrapper = document.createElement('div');
wrapper.innerHTML = decoded;
var newSvg = wrapper.firstChild;
// Lookup the <path> and get a ref
var innerPath = newSvg.getElementsByTagName('path')[0];
// Set up new color
innerPath.setAttribute("fill", "#FF0000");
// Show modified image
document.body.appendChild(newSvg);
<img id="target" src="data:image/svg+xml;base64,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">
Note:
There are some restrictions on IE < 10
EDIT: Muplipath Approach
var paths = newSvg.getElementsByTagName('path');
[].forEach.call(paths, function(path) {
path.setAttribute("fill", "#FF0000");
});
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