计算机辅助实测地质剖面图编绘系统设计

Design of the computer-aided geological section-making system

作者在地矿点源信息系统的整体框架下，采用新一代面向图形对象的可视化语言IDL（5．2版）和Visul FoxPro6．0作为开发工具，在微机上开发出一个实测地质剖面图编绘系统。该系统由数据输入与处理、绘图和结果输出等三大部分12个功能子模块组成。系统以现场采集、室内输入和数据库调用等几种方式获取绘图数据；采用基本图元法生成并建立岩石花纹符号库，采用逐步计算的方式完成基本图元的生成和定位，从而实现产状变化地层中的岩石花纹填充；并采用开放数据库连接技术实现绘图程序与外接数据库的通信。

：Under the frame of the geological and mineral resources point－source information system， a mew computer－aided geological section－making system has been developed by using the advanced graphic object－oriented interactive language （IDL） and Visual FoxPro6．0 as tools． The system is composed of three parts and twelve function submodules． The three parts are data input and processing， data plotting and output． The system accesses the data for plotting by ways of in－situ data gathering， indoor data input and manipulation of the database． The basic graph element method is used to establish the lithopattern library． A new filling method for controlling and guiding the strike and dip of the strata is used to solve the problem of filling in strata， and an open， universal and editable rock library has been established in the system． The technology of the open database connectivity （ODBC） is used to solve the connectivity between the plotting program and outer database． In conclusion， the system is characterized by normal legends， uniform symbols， good structure and high efficiency， so it is easy to use．