应用AutoCAD平台实现地理国情普查正射影像图廓的批量生成

The Generation of National Geoinformation Survey Orthophoto Mapborder in Batches Based on AutoCAD Platform

遥感影像作为地理国情普查工作中重要的采集依据,关系着整个国情普查成果的质量。项目设计中对遥感正射影像范围作出严格要求,按设计要求计算分幅影像裁切范围工作量非常大、错误率高,面对任务区的成千上万的图幅需耗费大量时间和人力严重耽误项目进度。本文通AUTOLISP编程语言实现正射影像图廓范围的批量生成,结合工程实例在具体项目中应用并对使用中生成矩形范围不正确的问题进行了分析,发现矢量为四个节点的闭合面程序方可正确运行。通过在项目中的应用此方法操作简单,数据质量高,大大提升了工作效率,值得在今后的生产作业中广泛推广和应用。

Remote sensing images as a basis for national geographic condition survey,has relation to the quality of national geographic condition surveys resultc8 . Project scope of remote sensing are projective like in the design of strict requirements, in accordance with the requirements of design calculation points image cutting range workload is very large, high error rate, in the face of such missions thousands of sheet need to spend a lot of time and manpower seriously delay the project schedule. Implemented using autolisp programming language in this article, Based on the application of engineering examples in the concrete project and the problem of incorrect generation of rectangle in use, it is found that the closed face program of the four nodes can be operated correctly. Through the project application of this method is simple operation, high data quality, greatly improve the working efficiency, is worth popularizing widely in the future production and application.