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说明：  绘图工具visio使用教程，仅适用于数据流图(Use drawing tools visio tutorial applies only to data flow diagram)

边沿提取,轮廓跟踪,对于图象处理方面有很用处 很好的(Edge extraction and contour tracking, has a very useful for image processing is very good)

PSCAD 自建移相变压器模型 实现正负7.5度移相(The PSCAD self phase-shifting transformer model plus or minus 7.5 degrees phase shift)

建筑铝合金模板楼面布板，基于cad平台二次开发，使用lisp语言。(Building Aluminum Alloy floor layout template)

mfc 实现绘制3次B样条 效果很好 模块化可以在自己论文中使用(mfc achieved drawing cubic B-spline)

杜晓增计算机图形学基础Bresenham法画圆源程序(Du Xiaozeng computer graphics based Bresenham law circle source program)

this project is facts pscad

基于PSCAD 4.5搭建的IEEE标准2区4机11节点模型，参数配置正确，潮流计算结果正确。(PSCAD 4.5 build local area based on IEEE 4 2 11 node model, all the parameters have been configured correctly, flow calculation results are accurate.)

open cascade 二维图形生成例子程序(open cascade two-dimensional graph of sample program)

AutoCAD数据格式转换成ArcGIS底图格式的具体方法描述(AutoCAD data format conversion into ArcGIS base map format specific methods described )