基于高斯投影的矩形图廓算法及实现

The Arithmetic and Implementing of Rectangular Map Frame Based on Gauss Projection

大比例尺地图通常采用高斯-克吕格投影,标准分幅的地图图廓呈近似梯形。在应用中,一些专题地图,特别是专题地图集要求图廓为矩形,针对该需求,本文提出了一种高斯投影下地图矩形图廓坐标的计算方法,解决了矩形图廓不易计算的问题。实践证明,该方法能够满足精度需求,在专题地图制图中具有一定的价值。

The large scale map is usually used in the projection of Gauss,and the Standard frame of map is approximate trapezoid.In the application,some thematic maps,especially Thematic Atlas requirements map frame is a rectangle,according to the requirement,this paper presents a rectanglularmap frame coordinate calculation method based on Gauss projection to solve the problem of the rectangular map frame is not easy to calculate.The practice shows that this method can meet the demand of precision,and has a certain value in the thematic map.