IText，蜡染和vaadin图表在linux上出错(IText, batik and vaadin charts scales wrong on linux)

我在将图表输出为PDF时遇到了一些麻烦。最近我发布了这个：使用iText和蜡染生成PDF，这是根据建议解决的一些调整到尺度。

我在Windows 10机器上的本地glassfish服务器上运行amy testenviroment，当我导出为PDF时，我实际上得到了一个漂亮的结果。

但是当我将结果推送到RHEL服务器时，结果会有所不同。网站上显示的图表很棒，但是当我导出到pdf时，我得到了这个：

如您所见，标题被按下，由于某种原因，带有标签的Y轴被裁剪，数据标签被挤压在一起。我尝试过不同尺度的游戏，有没有scaletofit，scaletoabsolute等等，但无论我做什么，它都会继续做那种奇怪的事情。

有没有人知道最新情况 - 甚至更好，如何解决？我已经仔细检查过phantomjs是同一个版本，以确保SVG是正确的 - 。

代码如下：

private Image createSvgImage(PdfContentByte contentByte, Chart chart) throws IOException { Configuration configuration = chart.getConfiguration(); configuration.setExporting(false); SVGGenerator generator = SVGGenerator.getInstance(); generator.withHeigth(600); generator.withWidth(1200); String svg = generator.generate(configuration); Image image = drawUnscaledSvg(contentByte, svg); image.scaleToFit(800, 370); configuration.setExporting(true); return image; } private Image drawUnscaledSvg(PdfContentByte contentByte, String svgStr) throws IOException { GraphicsNode imageGraphics = buildBatikGraphicsNode(svgStr); float width = 1200; float height = 600; PdfTemplate template = contentByte.createTemplate(width, height); Graphics2D graphics = template.createGraphics(width, height); try { imageGraphics.paint(graphics); graphics.translate(-10, -10); return new ImgTemplate(template); } catch (BadElementException e) { throw new RuntimeException("Couldn't generate PDF from SVG", e); } finally { graphics.dispose(); } } private GraphicsNode buildBatikGraphicsNode(String svgStr) throws IOException { UserAgent agent = new UserAgentAdapter(); SVGDocument svgdoc = createSVGDocument(svgStr, agent); DocumentLoader loader = new DocumentLoader(agent); BridgeContext bridgeContext = new BridgeContext(agent, loader); bridgeContext.setDynamicState(BridgeContext.STATIC); GVTBuilder builder = new GVTBuilder(); GraphicsNode imageGraphics = builder.build(bridgeContext, svgdoc); return imageGraphics; } private SVGDocument createSVGDocument(String svg, UserAgent agent) throws IOException { SVGDocumentFactory documentFactory = new SAXSVGDocumentFactory( agent.getXMLParserClassName(), true); SVGDocument svgdoc = documentFactory.createSVGDocument(null, new StringReader(svg)); return svgdoc; }

更新我尝试从磁盘读取SVG文件，我知道这是正确的，并且在PDF中正确放置。所以问题出在SVG Generator的某个地方。谁知道这件事？

I've been having some trouble getting my charts out to PDF. Recently i posted this: Generating PDF with iText and batik which was solved as suggested with some tweaking to the scales.

I run amy testenviroment on a local glassfishserver on a windows 10 machine, and when I export to PDF I actually get a pretty result now.

But when I pushed the results to the RHEL server, the results differed. The charts shown on the website is great, but when I export to pdf, I get this:

As you can see, the title is pushed down, for some reason the Y-axis with labels are cropped, and the data-labels are squished together. I've tried playing around with different scales, with and without scaletofit, scaletoabsolute and so on, but no matter what I do, it keeps doing that weird thing.

Does anybody has any idea whats going on - and even better, how to fix it? I've doublechecked that phantomjs is the same version, to make sure the SVG is the right one-.

The code is as follows:

private Image createSvgImage(PdfContentByte contentByte, Chart chart) throws IOException { Configuration configuration = chart.getConfiguration(); configuration.setExporting(false); SVGGenerator generator = SVGGenerator.getInstance(); generator.withHeigth(600); generator.withWidth(1200); String svg = generator.generate(configuration); Image image = drawUnscaledSvg(contentByte, svg); image.scaleToFit(800, 370); configuration.setExporting(true); return image; } private Image drawUnscaledSvg(PdfContentByte contentByte, String svgStr) throws IOException { GraphicsNode imageGraphics = buildBatikGraphicsNode(svgStr); float width = 1200; float height = 600; PdfTemplate template = contentByte.createTemplate(width, height); Graphics2D graphics = template.createGraphics(width, height); try { imageGraphics.paint(graphics); graphics.translate(-10, -10); return new ImgTemplate(template); } catch (BadElementException e) { throw new RuntimeException("Couldn't generate PDF from SVG", e); } finally { graphics.dispose(); } } private GraphicsNode buildBatikGraphicsNode(String svgStr) throws IOException { UserAgent agent = new UserAgentAdapter(); SVGDocument svgdoc = createSVGDocument(svgStr, agent); DocumentLoader loader = new DocumentLoader(agent); BridgeContext bridgeContext = new BridgeContext(agent, loader); bridgeContext.setDynamicState(BridgeContext.STATIC); GVTBuilder builder = new GVTBuilder(); GraphicsNode imageGraphics = builder.build(bridgeContext, svgdoc); return imageGraphics; } private SVGDocument createSVGDocument(String svg, UserAgent agent) throws IOException { SVGDocumentFactory documentFactory = new SAXSVGDocumentFactory( agent.getXMLParserClassName(), true); SVGDocument svgdoc = documentFactory.createSVGDocument(null, new StringReader(svg)); return svgdoc; }

UPDATE I've tried reading a SVG file from disk, that I knew was correct, and that is put correctly within the PDF. So the problem lies somewhere within the SVG Generator. Anyone knows about this?