PQ

cad提取文字坐标 能提取文字所在点的坐标值并保存到text中 (cad text extraction coordinates coordinates of the text can be extracted and saved to the point where the text of the)

说明：  海森频率格纸的绘制、绘制P-III频率曲线(Drawing P-III frequency curve with Hessian frequency grid paper)

本程序是计算机图形学课程设计的程序，包含用各种算法绘制直线、圆、曲线，填充，剪裁等，有助于计算机图形学的学习与实践。(This procedure is a computer graphics curriculum design process, including the use of various algorithms to draw lines, circles, curves, filling, cutting, etc., help to learn and practice of computer graphics.)

用MATLAB画地图，有中国地图，美国地图以及世界地图。(Use MATLAB to draw maps, map of China, map of the United States and the world map.)

实现了DDA直线生成算法画直线，Bresenham圆弧生成算法画圆弧(Achieve DDA line drawing algorithm to generate a straight line, Bresenham algorithm for drawing arcs arc generated)

A simple graphics class for 2D drawing

用四阶龙格-库塔法求系统在U单位阶跃输入下该系统的响应曲线(Using the four order Runge Kutta method to find the response curve )

基于频散曲线，选择抽样脉冲信号作为子波，推导出了合成单炮面波地震记录的理 论公式，并利用该公式，针对不同弹性层状介质模型的频散曲线合成了面波地震记录。(Based on the dispersion curve, select the sampling pulse signal wavelet derived synthetic single artillery surface wave seismogram theoretical formulas, and the use of the formula, seismogram synthesis of surface wave dispersion curves for different elastic layered media model.)

Relief计算分类权重，已经调试成功.内含m文件，可直接运行，有均匀线阵的CRB曲线。( Relief computing classification weight, Has been successful debugging. M contains files can be directly run, There ULA CRB curve.)

基于autolisp快速绘制钢结构（尤其钢箱梁）横断面(Rapid Drawing of Cross Sections of Steel Structures (especially Steel Box Girders) Based on Autolisp)