摘要
在县级土地利用规划用图中,常涉及到跨投影带的地图拼接问题,一般使用邻带转换法实现跨带区域的地图显示,该方法在实际应用中存在面积和角度变形相对较大的不足。本文采用自定义中央经线的投影转带方法,经过高斯投影变换,较好地解决了县域范围的跨带拼接显示并有效控制了相关变形。
In the compilation of land use planning map at county level,it is used to transform one region to the adjacent one to display the more projection zones. But this method has many weak points such as area and angular distortion in the practical application. A method of projection transformation based on the customized central meridian was studied. It well solved the splicing and display of more projection zones at county level and effectively controlled relevant distortion through the transformation of Gauss - Kruger projection.
出处
《测绘与空间地理信息》
2008年第4期169-171,共3页
Geomatics & Spatial Information Technology
关键词
高斯-克吕格投影
自定义中央经线
跨带
Gauss- Kruger projection
customized central meridian
more projection zones
