java dxf读写
Java DXF（Drawing Exchange Format）读写涉及到的是在Java环境中处理AutoCAD的图形数据格式。DXF是一种基于ASCII或二进制的文件格式，用于在不同的CAD程序之间交换图形数据。在Java中进行DXF文件的读写，可以帮助开发者实现与AutoCAD软件的数据交互，例如导入或导出设计图档。
DXF文件主要由几部分组成，包括标题块、图层信息、线型定义、实体记录等。在Java中读取DXF文件，首先需要解析这些结构，将它们转化为Java对象。通常，这会涉及到创建一个解析器类，逐行读取DXF文件，根据DXF的语法解析各个部分。
1. **解析过程**：
- 文件头部：读取文件的版本信息和其他设置。
- 图层定义：解析图层的颜色、线型、线宽等属性。
- 图形实体：解析点、线、多段线、圆、弧、文字等图形实体，以及它们的位置、尺寸等属性。
- 定义块和外部参照：处理可重用的图块和外部引用的DXF文件。
- 其他信息：如线型定义、视口设置、附加信息等。
2. **写入过程**：
- 创建文件：初始化一个输出流，准备写入DXF数据。
- 写入头部：根据需求设置文件版本和其他信息。
- 写入图层：创建并写入图层信息，包括颜色、线型等。
- 写入实体：根据Java对象中的图形数据，按照DXF格式写出对应的实体记录。
- 写入块和外部参照：如果存在，写入自定义的图块和外部引用。
- 结束文件：写入结束标记，关闭输出流。
在Java中，实现DXF读写可能需要使用第三方库，如JFreeCAD或JDxfLib。这些库提供了方便的方法来操作DXF文件，避免了手动解析和生成DXF格式的复杂性。例如，ycad-1.0.2可能是某个Java DXF库的版本，提供了API来进行DXF文件的读取和写入。
3. **使用示例**：
- 读取DXF文件：
```java
DxfReader reader = new DxfReader("input.dxf");
List entities = reader.read();
for (DxfEntity entity : entities) {
System.out.println(entity);
}
```
- 写入DXF文件：
```java
DxfWriter writer = new DxfWriter("output.dxf");
List entitiesToWrite = ...; // 创建或获取要写入的实体列表
writer.write(entitiesToWrite);
```
4. **注意事项**：
- 数据类型转换：DXF文件中的数值通常是浮点数，需要进行适当的类型转换。
- 错误处理：解析过程中可能出现格式错误，需要捕获和处理异常。
- 文件编码：确保正确处理DXF文件的ASCII或二进制编码。
5. **性能优化**：
- 缓存：对于频繁访问的数据，可以考虑使用缓存提高效率。
- 并行处理：如果文件非常大，可以使用多线程并发读写。
Java DXF读写涉及文件解析、数据对象的创建、文件写入等多个步骤，通过使用合适的库可以简化这个过程。理解DXF文件格式和Java I/O操作是实现这一功能的基础。
文件下载
资源详情
[{"title":"（ 464 个子文件 1.3MB ） java dxf读写","children":[{"title":"hexhouse_demo.bat <span style='color:#111;'> 104B </span>","children":null,"spread":false},{"title":"insmech6a_demo.bat <span style='color:#111;'> 78B </span>","children":null,"spread":false},{"title":"fixt3_demo.bat <span style='color:#111;'> 74B </span>","children":null,"spread":false},{"title":"blk3_demo.bat <span style='color:#111;'> 73B </span>","children":null,"spread":false},{"title":"YcadTest.bat <span style='color:#111;'> 62B </span>","children":null,"spread":false},{"title":"YxxfGfxContext.class <span style='color:#111;'> 67.79KB </span>","children":null,"spread":false},{"title":"YxxfDrwViewHandler.class <span style='color:#111;'> 21.22KB </span>","children":null,"spread":false},{"title":"YxxfPrtViewHandler.class <span style='color:#111;'> 17.77KB </span>","children":null,"spread":false},{"title":"YxxfGfxMatrix.class <span style='color:#111;'> 14.24KB </span>","children":null,"spread":false},{"title":"YxxfEntPolyline.class <span style='color:#111;'> 13.68KB </span>","children":null,"spread":false},{"title":"YxxfDrwTilemode1View.class <span style='color:#111;'> 11.12KB </span>","children":null,"spread":false},{"title":"YcadvPane.class <span style='color:#111;'> 8.23KB </span>","children":null,"spread":false},{"title":"YxxfPrtTilemode1View.class <span style='color:#111;'> 8.17KB </span>","children":null,"spread":false},{"title":"YxxfDrwToolbarView.class <span style='color:#111;'> 7.75KB </span>","children":null,"spread":false},{"title":"YdxfKeyword.class <span style='color:#111;'> 7.12KB </span>","children":null,"spread":false},{"title":"YxxfSecTables.class <span style='color:#111;'> 7.09KB </span>","children":null,"spread":false},{"title":"YcadTest.class <span style='color:#111;'> 7.05KB </span>","children":null,"spread":false},{"title":"YdxfGetSecEntities.class <span style='color:#111;'> 6.89KB </span>","children":null,"spread":false},{"title":"YxxfGfxPalette.class <span style='color:#111;'> 6.57KB </span>","children":null,"spread":false},{"title":"YdxfGetBuffer.class <span style='color:#111;'> 6.53KB </span>","children":null,"spread":false},{"title":"YutilIOHandler.class <span style='color:#111;'> 6.23KB </span>","children":null,"spread":false},{"title":"YxxfDrwTilemode0View.class <span style='color:#111;'> 5.75KB </span>","children":null,"spread":false},{"title":"YcadTestCreateDrawingT.class <span style='color:#111;'> 5.65KB </span>","children":null,"spread":false},{"title":"Ycadv.class <span style='color:#111;'> 5.54KB </span>","children":null,"spread":false},{"title":"YxxfGfxShapeChar.class <span style='color:#111;'> 5.03KB </span>","children":null,"spread":false},{"title":"YutilProperties.class <span style='color:#111;'> 5.02KB </span>","children":null,"spread":false},{"title":"YxxfDrwDrawingView.class <span style='color:#111;'> 5.01KB </span>","children":null,"spread":false},{"title":"YxxfDrwViewHandlerEvent.class <span style='color:#111;'> 4.61KB </span>","children":null,"spread":false},{"title":"YxxfPrtDrawingView.class <span style='color:#111;'> 4.52KB </span>","children":null,"spread":false},{"title":"Yxxf.class <span style='color:#111;'> 4.46KB </span>","children":null,"spread":false},{"title":"YxxfPrtTilemode0View.class <span style='color:#111;'> 4.38KB </span>","children":null,"spread":false},{"title":"YxxfEntViewport.class <span style='color:#111;'> 4.34KB </span>","children":null,"spread":false},{"title":"YxxfEntxCommand.class <span style='color:#111;'> 4.32KB </span>","children":null,"spread":false},{"title":"YxxfTblVport.class <span style='color:#111;'> 4.03KB </span>","children":null,"spread":false},{"title":"YxxfPrtTilemode0DrawT.class <span style='color:#111;'> 3.79KB </span>","children":null,"spread":false},{"title":"YxxfDrwTilemode0DrawT.class <span style='color:#111;'> 3.78KB </span>","children":null,"spread":false},{"title":"YcadvPaneBeanInfo.class <span style='color:#111;'> 3.65KB </span>","children":null,"spread":false},{"title":"YxxfPrtComponent.class <span style='color:#111;'> 3.61KB </span>","children":null,"spread":false},{"title":"YxxfEntMtext.class <span style='color:#111;'> 3.50KB </span>","children":null,"spread":false},{"title":"YdxfGetSecTables.class <span style='color:#111;'> 3.41KB </span>","children":null,"spread":false},{"title":"YxxfEntBlock.class <span style='color:#111;'> 3.32KB </span>","children":null,"spread":false},{"title":"YxxfEntInsert.class <span style='color:#111;'> 3.30KB </span>","children":null,"spread":false},{"title":"YxxfDrwDrawingDrawT.class <span style='color:#111;'> 3.25KB </span>","children":null,"spread":false},{"title":"YxxfPrtDrawingDrawT.class <span style='color:#111;'> 3.25KB </span>","children":null,"spread":false},{"title":"YxxfDrwTilemode1DrawT.class <span style='color:#111;'> 3.24KB </span>","children":null,"spread":false},{"title":"YxxfEntAttrib.class <span style='color:#111;'> 3.21KB </span>","children":null,"spread":false},{"title":"YxxfEntDimension.class <span style='color:#111;'> 3.18KB </span>","children":null,"spread":false},{"title":"YxxfGfxPointW.class <span style='color:#111;'> 3.18KB </span>","children":null,"spread":false},{"title":"YxxfEntText.class <span style='color:#111;'> 3.12KB </span>","children":null,"spread":false},{"title":"YxxfPrtTilemode1DrawT.class <span style='color:#111;'> 2.74KB </span>","children":null,"spread":false},{"title":"YxxfPrtContainer.class <span style='color:#111;'> 2.62KB </span>","children":null,"spread":false},{"title":"YdxfPutBuffer.class <span style='color:#111;'> 2.56KB </span>","children":null,"spread":false},{"title":"YxxfShape.class <span style='color:#111;'> 2.55KB </span>","children":null,"spread":false},{"title":"YxxfPrtViewLayout.class <span style='color:#111;'> 2.49KB </span>","children":null,"spread":false},{"title":"YshxGet.class <span style='color:#111;'> 2.36KB </span>","children":null,"spread":false},{"title":"YxxfDrwViewLayout.class <span style='color:#111;'> 2.28KB </span>","children":null,"spread":false},{"title":"YdxfGetEntViewport.class <span style='color:#111;'> 2.18KB </span>","children":null,"spread":false},{"title":"YxxfEntArc.class <span style='color:#111;'> 2.13KB </span>","children":null,"spread":false},{"title":"YxxfDrwView.class <span style='color:#111;'> 2.10KB </span>","children":null,"spread":false},{"title":"YutilCharBuffer.class <span style='color:#111;'> 2.09KB </span>","children":null,"spread":false},{"title":"YdxfGetHandler.class <span style='color:#111;'> 2.09KB </span>","children":null,"spread":false},{"title":"YxxfSecBlocks.class <span style='color:#111;'> 2.05KB </span>","children":null,"spread":false},{"title":"YdxfGetSecHeader.class <span style='color:#111;'> 2.03KB </span>","children":null,"spread":false},{"title":"YxxfTblLtypeKey.class <span style='color:#111;'> 2.03KB </span>","children":null,"spread":false},{"title":"YdxfGetTblVport.class <span style='color:#111;'> 2.00KB </span>","children":null,"spread":false},{"title":"YdxfGetEntLwpolyline.class <span style='color:#111;'> 1.99KB </span>","children":null,"spread":false},{"title":"YxxfEntSolid.class <span style='color:#111;'> 1.97KB </span>","children":null,"spread":false},{"title":"YxxfEntCircle.class <span style='color:#111;'> 1.92KB </span>","children":null,"spread":false},{"title":"YdxfPutSecHeader.class <span style='color:#111;'> 1.88KB </span>","children":null,"spread":false},{"title":"YdxfGetEntDimension.class <span style='color:#111;'> 1.85KB </span>","children":null,"spread":false},{"title":"YxxfEntLine.class <span style='color:#111;'> 1.82KB </span>","children":null,"spread":false},{"title":"YdxfGetEntMtext.class <span style='color:#111;'> 1.77KB </span>","children":null,"spread":false},{"title":"YxxfTblStyleKey.class <span style='color:#111;'> 1.73KB </span>","children":null,"spread":false},{"title":"YdxfGetEntAttdef.class <span style='color:#111;'> 1.70KB </span>","children":null,"spread":false},{"title":"YxxfTblLayerKey.class <span style='color:#111;'> 1.68KB </span>","children":null,"spread":false},{"title":"YdxfGetEntAttrib.class <span style='color:#111;'> 1.67KB </span>","children":null,"spread":false},{"title":"YxxfEntTrace.class <span style='color:#111;'> 1.66KB </span>","children":null,"spread":false},{"title":"YxxfSecHeader.class <span style='color:#111;'> 1.63KB </span>","children":null,"spread":false},{"title":"YxxfEntAttdef.class <span style='color:#111;'> 1.62KB </span>","children":null,"spread":false},{"title":"YxxfEnt3Dface.class <span style='color:#111;'> 1.60KB </span>","children":null,"spread":false},{"title":"YdxfGetEntText.class <span style='color:#111;'> 1.56KB </span>","children":null,"spread":false},{"title":"YxxfEntHeader.class <span style='color:#111;'> 1.56KB </span>","children":null,"spread":false},{"title":"YdxfGetEntPolyline.class <span style='color:#111;'> 1.55KB </span>","children":null,"spread":false},{"title":"YshxGetBuffer.class <span style='color:#111;'> 1.54KB </span>","children":null,"spread":false},{"title":"YshxGetHandler.class <span style='color:#111;'> 1.50KB </span>","children":null,"spread":false},{"title":"YxxfSecEntities.class <span style='color:#111;'> 1.42KB </span>","children":null,"spread":false},{"title":"YxxfGfxPointP.class <span style='color:#111;'> 1.38KB </span>","children":null,"spread":false},{"title":"YdxfGetEntInsert.class <span style='color:#111;'> 1.38KB </span>","children":null,"spread":false},{"title":"YxxfTblLtype.class <span style='color:#111;'> 1.34KB </span>","children":null,"spread":false},{"title":"YxxfGfxText.class <span style='color:#111;'> 1.33KB </span>","children":null,"spread":false},{"title":"YutilAWT.class <span style='color:#111;'> 1.29KB </span>","children":null,"spread":false},{"title":"YdxfPutEntBlock.class <span style='color:#111;'> 1.29KB </span>","children":null,"spread":false},{"title":"YxxfTblStyle.class <span style='color:#111;'> 1.24KB </span>","children":null,"spread":false},{"title":"YdxfGetEntVertex.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YdxfGetTblLtype.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YshxLibBeanInfo.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YxxfLibBeanInfo.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YdxfLibBeanInfo.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YcadvBeanInfo.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"YdxfPutHandler.class <span style='color:#111;'> 1.23KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]
评论信息
其他资源
- java调用海康sdk教程-linux/win.zip
- 员工工资管理系统（java+sql）
- 全国国道数据
- 情感分析评论训练数据
- Bilibili用户信息（三百万）
- java jsp 毕业设计 教室借用管理系统
- 基于MATLAB的模糊聚类分析模板
- 适用于element ui的全国城市三级联动json数据
- QPST(高通刷机工具) V2.7.399 官方最新安装版.zip
- 电子内窥镜信噪比测试系统使用说明书.docx
- github-react-native-apollo-graphql：with使用React-Native和Apollo GraphQL构建的GitHub移动应用-源码
- 区块链：有关区块链和加密货币的有用文档和科学论文的汇编-源码
- apache-storm-2.1.0.tar.gz
- 病毒木马测试包 里面有6000多个病毒
- 投资学精要 概述投资理念
- IBM SPSS Statistics V21.0激活码
- iOS面试知识大纲
- 周立功USBCANI通讯测试源码
- struts2-016/017漏洞解决
- android 视频播放器源码
- C#图书管理系统(窗体)
- 04-图像复原MATLAB
- IP地址的合法性及子网判断
免责申明
【只为小站】的资源来自网友分享，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，【只为小站】 无法对用户传输的作品、信息、内容的权属或合法性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论 【只为小站】 经营者是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。
本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二条之规定，若资源存在侵权或相关问题请联系本站客服人员，zhiweidada#qq.com，请把#换成@，本站将给予最大的支持与配合，做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明
本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二条之规定，若资源存在侵权或相关问题请联系本站客服人员，zhiweidada#qq.com，请把#换成@，本站将给予最大的支持与配合，做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明