用AutoCAD二次开发系统绘制化探图

将地球化学测量的分析数据按照每条测线上的测点位置以一定的顺序依次输入Microsoft Excel、Microsoft Word或其他数据库软件编制的多元素分析数据表，并对各元素分别建立成纯文本数据文件。根据制图比例尺、测线数目和间距、测线上测点数目和点距、测区的某一角点坐标等已知参数，分别计算出各测点在图纸上的坐标值，将纯文本数据文件中各元素的分析结果标注在图纸上对应的测点位置，以绘制原始数据图并根据如上的参数以及化验数据计算编绘平面剖面图，最后再根据测线方位角使整个图形旋转，从而完成图件的制作。按照上述方法，以VisualLISP为工具，利用AutoCAD2000二次开发技术编制相应的处理程序，从而实现地球化学原始数据图和平面剖面图的微机制图。

Drawing geochemical exploration map by second development system of AutoCAD

The analytical data of geochemical survey of each point in a geochemical traverse are inputted in order of locations in each line into multi-element analytical datum forms compiled by Microsoft Excel,Microsoft Word and other database software,then,the pure text-data-file of each element is built up.The coordinate value of each survey point from data base on the map was calculated one by one based on following parameters,the drawing scale,the number and distance of geochemical traverses,the number and distance of survey points in each line, and the coordinate value of some corners in the survey areas. Analytical result of each element in the text-data-file is marked on the relevant site of survey points on the map in order to draw original data maps. According to the above parameters and analytical data,a plane-sectional map is compiled.Finally,according to orientations of survey lines make all maps rotate,thus whole process of drawing maps has been completed.According to the above methods,taking the Visual LISP as a tool,utilizing the technology of the second development based on AutoCAD 2000,the corresponding processing program has been compiled.Computer graphics,such as geochemical original data maps and plane-sectional maps,come into true.