使用CadRasterizationOptions 解析cad文件，实现dwg，dxf 转换成pdf，png，jpg，svg等格

import com.aspose.cad.*; import com.aspose.cad.fileformats.cad.CadDrawTypeMode; import com.aspose.cad.fileformats.cad.CadImage; import com.aspose.cad.imageoptions.*; import com.itextpdf.text.PageSize; import java.io.IOException ; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLConnection; class CADFileUtil{ public static File change(File dwgFile) throws IOException, IOException { FileInputStream fileInputStream; //将pdf文件转换成InputStream输入流 fileInputStream = new FileInputStream(dwgFile); Image objImage = Image.load(fileInputStream); CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions(); PngOptions pngOptions=new PngOptions(); //pngOptions.setVectorRasterizationOptions(rasterizationOptions); //设置属性 //rasterizationOptions.setAutomaticLayoutsScaling(true); //rasterizationOptions.setContentAsBitmap(true); //rasterizationOptions.setLayouts(new String[]{"Model"}); rasterizationOptions.setDrawType(1); //图片宽度 rasterizationOptions.setPageWidth(8000); //图片高度 rasterizationOptions.setPageHeight(7200); ////背景色 //rasterizationOptions.setBackgroundColor(Color.getWhite()); //////线条颜色 //rasterizationOptions.setDrawColor(Color.getBlack()); //// 全局背景色 //rasterizationOptions.setExportAllLayoutContent(false); pngOptions.setVectorRasterizationOptions(rasterizationOptions); //输出文件 File outputFile = new File("C:\\Users\\Administrator\\Desktop\\sdsds\\w2.png"); //存放地址 objImage.save(outputFile.getPath(), pngOptions); System.out.println(dwgFile.getName()+"转换成功！"); fileInputStream.close(); return outputFile; } public static void main(String[] args) { String srcFile="E:/TEMP/sss.dwg"; //String dataDir="E:/TEMP/"; long a= System.currentTimeMillis(); File cadFile = new File("C:\\Users\\Administrator\\Desktop\\sdsds\\fl1.dxf"); try { change(cadFile); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } long b=System.currentTimeMillis(); System.out.println(b-a); //String dirPath = "D:\\test\\test\\"; //String outDirPath = "C:\\Users\\Administrator\\Desktop\\sdsds\\"; //CADFileToPDF("C:\\Users\\Administrator\\Desktop\\sdsds\\fl1.dxf", outDirPath + "dwg-test.pdf"); //CADFileToSvg(); } /** * 将cad文件转换为pdf文件 * * @param srcFile 原始cad文件路径 * @param dataDir 转换后的pdf文件路径 * @param pageSize 页面大小 A4 or A3 * @param pageOrientation 页面方向 portrait or landscape * @throws Exception */ public static void CADFileToPDF(String srcFile, String dataDir, String pageSize, String pageOrientation) { Image objImage = Image.load(srcFile); CadImage cadImage = (CadImage) objImage; //下面两句是为了解决缺失字体导致部分文字变为方框的问题 cadImage.setDefaultFont("仿宋"); CadRasterizationOptions cadRasterizationOptions = new CadRasterizationOptions(); //导出所有的布局:默认为false，导致只能导出第一个布局 cadRasterizationOptions.setExportAllLayoutContent(true); // 设置颜色：默认黑白 cadRasterizationOptions.setBackgroundColor(Color.getWhite()); // 这一句是输出线条为彩色的关键 cadRasterizationOptions.setDrawType(CadDrawTypeMode.UseObjectColor); // 设置纸张大小，默认A4 float width = "A3".equals(pageSize) ? PageSize.A3.getWidth() : PageSize.A4.getWidth(); float height = "A3".equals(pageSize) ? PageSize.A3.getHeight() : PageSize.A4.getHeight(); //设置纸张方向,默认纵向, SizeF size = "landscape".equals(pageOrientation) ? new SizeF(height, width) : new SizeF(width, height); cadRasterizationOptions.setPageSize(size); cadRasterizationOptions.setAutomaticLayoutsScaling(false); cadRasterizationOptions.setNoScaling(false); PdfOptions pdfOptions = new PdfOptions(); pdfOptions.setVectorRasterizationOptions(cadRasterizationOptions); objImage.save(dataDir + System.currentTimeMillis() + ".pdf", pdfOptions); } public static void CADFileToPDF(String srcFile, String dataDir, String pageSize) { CADFileToPDF(srcFile, dataDir, pageSize, "portrait"); } public static void CADFileToPDF(String srcFile, String dataDir) { CADFileToPDF(srcFile, dataDir, "A4", "portrait"); } private static void dddd() { String srcFile="C:\\Users\\Administrator\\Desktop\\sdsds\\fl1.dxf"; CadRasterizationOptions cadRasterizationOptions = new CadRasterizationOptions(); //cadRasterizationOptions.setBackgroundColor(Color.getWhite()); cadRasterizationOptions.setPageWidth(9600); cadRasterizationOptions.setPageHeight(10600); cadRasterizationOptions.setAutomaticLayoutsScaling(true); JpegOptions jpegOptions = new JpegOptions(); jpegOptions.setVectorRasterizationOptions(cadRasterizationOptions); cadRasterizationOptions.setDrawType(CadDrawTypeMode.UseObjectColor); Image objImage = Image.load(srcFile); objImage.save("C:\\Users\\Administrator\\Desktop\\sdsds\\w33.jpeg", jpegOptions); } public static void CADFileToSvg(){ String srcFile="C:\\Users\\Administrator\\Desktop\\sdsds\\fl1.dxf"; Image image = Image.load(srcFile); // Create an instance of CadRasterizationOptions CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions(); // Set page width & height rasterizationOptions.setPageWidth(7200); rasterizationOptions.setPageHeight(9200); // Create an instance of PngOptions for the resultant image ImageOptionsBase options = new PngOptions(); // Set rasterization options options.setVectorRasterizationOptions(rasterizationOptions); // Convert CAD DWG DXF file to PNG image image.save("C:\\Users\\Administrator\\Desktop\\sdsds\\w33.png" , options); } }