转换SVG时，Batik出错:需要元素<use>的"xlink:href“属性
转换SVG时，Batik出错:需要元素<use>的"xlink:href“属性
提问于 2018-01-30 19:33:02
我有一个SVG文件，结构如下：
<svg xmlns="http://www.w3.org/2000/svg" width="506px" height="261px" viewBox="0 0 506 261" style="overflow: hidden; display: block; width: 506px; height: 261px;">
<defs>
<path fill="none" stroke="rgb(211,211,211)" d="M 5,-5 L 0,0 L 5,5" stroke-opacity="1" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" id="ygc10_0" />
<path fill="none" stroke="rgb(211,211,211)" d="M 5,-5 L 0,0 L 5,5" stroke-opacity="1" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" id="ygc10_1" />
<path fill="none" stroke="rgb(211,211,211)" d="M 5,-5 L 0,0 L 5,5" stroke-opacity="1" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" id="ygc10_2" />
<path fill="none" stroke="rgb(211,211,211)" d="M 5,-5 L 0,0 L 5,5" stroke-opacity="1" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" id="ygc10_3" />
<path fill="none" stroke="rgb(211,211,211)" d="M 5,-5 L 0,0 L 5,5" stroke-opacity="1" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" id="ygc10_4" />
</defs>
<g style="pointer-events:visiblePainted" transform="translate(-57.822952932363535 -41.05614567526554)" image-rendering="auto" shape-rendering="auto">
<g>
<path fill="none" stroke="rgb(211,211,211)" d="M 257.9119715596548,73.05614567526554 L 257.9119715596548,135.06828972638465" stroke-opacity="1" stroke-width="2" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" />
<use href="#ygc10_0" transform="matrix(0 -2 2 0 257.912 135.068)" style="pointer-events: none;" />
</g>
<g>
<path fill="none" stroke="rgb(211,211,211)" d="M 107.82295293236353,207.4377203121161 L 107.82295293236353,261.03014731718906" stroke-opacity="1" stroke-width="2" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" />
<use href="#ygc10_1" transform="matrix(0 -2 2 0 107.823 261.03)" style="pointer-events: none;" />
</g>
...我正在尝试从PNG的ByteArrayInputStream生成一个PNG，如下所示(请暂时不要考虑缺少异常处理)：
static ByteArrayOutputStream svgToPng(ByteArrayInputStream streamBytes) throws TranscoderException, IOException {
PNGTranscoder t = new PNGTranscoder();
TranscoderInput input = new TranscoderInput(streamBytes);
ByteArrayOutputStream ostream = new ByteArrayOutputStream();
TranscoderOutput output = new TranscoderOutput(ostream);
t.transcode(input, output);
ostream.flush();
return ostream;
}但是，我在transcode()的调用中得到了异常：
org.apache.batik.bridge.BridgeException: null:-1
The attribute "xlink:href" of the element <use> is required
at org.apache.batik.bridge.SVGUseElementBridge.buildCompositeGraphicsNode(Unknown Source)
at org.apache.batik.bridge.SVGUseElementBridge.createGraphicsNode(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildComposite(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildComposite(Unknown Source)
...你能帮帮我吗？在我的PNGTranscoder声明之后，我也会尝试：
t.addTranscodingHint(SVGAbstractTranscoder.KEY_DOCUMENT_ELEMENT_NAMESPACE_URI,
SVGDOMImplementation.SVG_NAMESPACE_URI);但没有效果。谢谢你们所有人。
Stack Overflow用户
发布于 2018-06-27 12:40:33
信息:在我的例子中，生成SVG字符串没有宽度值。所以它抛出了异常。
<g transform="translate(�, 85.00) scale(�)">它应该是这样的
<g transform="translate(168.88, 85.00) scale(0.36)">页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48520403
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