himing24的博客

Ycad是一个Java写的CAD DXF文件的读写和查看器，可以将DXF图纸呈现成打印或成像图形对象。

解析、处理、转换DXF格式，没显示功能，但读取没问题，输出格式支持SVG、JPEG、PNG、TIFF、PDF、XML等，支持到autocad2007，开源代码

DXF文件读取查看器，支持二维、三维的文本或二进制文件，免费的jar包，但代码不开源

netDxf is a .net library programmed in C# to read and write AutoCAD dxf files. It supports AutoCad2000, AutoCad2004, AutoCad2007, AutoCad2010 and AutoCad2013 dxf database versions, in both text and binary format.

电网工程限额设计指标2013年版 电力规划设计总院编制

Fortran 2003 guide，深入学习Fortran的教程，也是经常使用Fortran的必备手册

Apache Spark is an open source cluster computing system that aims to make data analytics fast — both fast to run and fast to write. To run programs faster, Spark offers a general execution model that can optimize arbitrary operator graphs, and supports in-memory computing, which lets it query data faster than disk-based engines like Hadoop. To make programming faster, Spark provides clean, concise APIs in Python, Scala and Java. You can also use Spark interactively from the Scala and Python shells to rapidly query big datasets.

Hadoop 开发者 第一期 入门专刊 学习hadoop的好资料

hadoop streaming 好资料

linux centos mentohust

此资源是从云计算论坛上得到的，分享给大家

华中科技大学内部资料，绝对经典的学习资料，学fortran必备

fortran学习经典资料，很好的总结，快速入门

学习fortran很好的资料，华中科技大学内部资料