一款南方CASS的应用小程序，修改符号，内插高程点及断面的提取等。-The application of a small Southern CASS program, modify the symbols, interpolated elevation and section of the extraction point.

CASS环境下对所选宗地界址点按宗地内编号原则进行重新排序-CASS environment reorder the selected parcel boundary points by parcel number principle

测绘中常用的一些制图符号，以及内业展点程序。主要包括： 围墙、栏杆、道路、圆堤的定义绘制，坐标正算反算程序，读取文件在CAD中进行展点。(Some cartographic symbols used in surveying and mapping as well as internal exhibition procedures are presented. Mainly include: The definition of the fence, railings, roads, roun

001 - 获取屏幕角点坐标，002 - StartUndoMark EndUndoMark，003 - 搜索曲线上与一指定点最靠近的点，004 - 求图块内圆的圆心坐标(Matrix)，005 - 调用系统选择文件夹对话框，006 - AutoCAD索引颜色（ACI）与RGB颜色对照表，008 - 自定义Hatch，011 - 将AutoCAD数据转换成字符串(001 - Get screen corner coordinates, 002 - Start UndoMark End Undo

LISP学习程序，可以将多线段相关点坐标写入Excel文件内(Write the coordinates of multi-line segment related points into Excel file)