我有一个SVG和该点(例如(x,y)=(250,112))。 BATIK是否有可能在给定点获取节点(DOM元素)?
最佳答案
我找到了由用户templth开发的batik users forum的答案,我不敢相信,我只是在此处重新发布了解决方案,以便可以有更多的机会。
public Element elementAtPosition(Document doc, Point2D point) {
UserAgent userAgent = new UserAgentAdapter();
DocumentLoader loader = new DocumentLoader(userAgent);
BridgeContext context = new BridgeContext(userAgent, loader);
context.setDynamicState(BridgeContext.DYNAMIC);
GVTBuilder builder = new GVTBuilder();
GraphicsNode rootGraphicsNode = builder.build(context, doc);
// rootGraphicsNode can be offseted relative to coordinate system
// that means calling this method on coordinates taken directly from the svg file might not work
// check the bounds of rootGraphicsNode to determine where the elements actually are
// System.out.println(rootGraphicsNode.getBounds());
GraphicsNode graphicsNode = rootGraphicsNode.nodeHitAt(point);
if (graphicsNode != null) {
return context.getElement(graphicsNode);
} else {
// if graphicsNode is null there is no element at this position
return null;
}
}
在蜡染布1.9上测试。此方法仅返回指定位置上的最顶层元素。解决方法是,删除该元素,然后再次调用nodeHitAt。