文中给出经纬网梯形已知理论面积的算例。

In this peper, the cases for the calculation of the known theoretical area of graticule ladder are illustrated.

本文主要介绍了如何在WIN-SURFER环境下实现物化探图件中的经纬网绘制、标准图框绘制、曲线类型图绘制方法。

This paper mainly introduces how to realize plottings of longitude and latitude grid line, standard map fram and type of graph in the geophysical and geochemical map by WIN-SURFER system.