测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
Geomatics & Spatial Information Technology
2015年
8期
202-204,207
,共4页
投影变形改正%高斯投影%DXF格式地形图%坐标转换
投影變形改正%高斯投影%DXF格式地形圖%坐標轉換
투영변형개정%고사투영%DXF격식지형도%좌표전환
projection distortion correction%gauss projection%DXF format topographic maps%coordinate conversion
两江新区东部区域位于重庆市独立坐标中东带结合部，无论采用重庆市独立坐标系中带还是东带，每千米边长高斯投影长度变形都在1．0～4．0 cm之间，超出规范规定。本文研究并确定控制两江新区投影变形的最终方案，建立了两江新区工程坐标系与重庆市独立坐标系的坐标转换关系，提出并编程实现了DXF格式地形图的坐标转换方法。
兩江新區東部區域位于重慶市獨立坐標中東帶結閤部，無論採用重慶市獨立坐標繫中帶還是東帶，每韆米邊長高斯投影長度變形都在1．0～4．0 cm之間，超齣規範規定。本文研究併確定控製兩江新區投影變形的最終方案，建立瞭兩江新區工程坐標繫與重慶市獨立坐標繫的坐標轉換關繫，提齣併編程實現瞭DXF格式地形圖的坐標轉換方法。
량강신구동부구역위우중경시독립좌표중동대결합부，무론채용중경시독립좌표계중대환시동대，매천미변장고사투영장도변형도재1．0～4．0 cm지간，초출규범규정。본문연구병학정공제량강신구투영변형적최종방안，건립료량강신구공정좌표계여중경시독립좌표계적좌표전환관계，제출병편정실현료DXF격식지형도적좌표전환방법。
Liangjiang New Area east area is located in the junction of the middle zone and East Zone in the Chongqing independent co-ordinate system, regardless using the middle zone or East Zone in Chongqing independent coordinate system, each kilometer of Gauss projection length deformation run up to 1.0cm-4.0cm, which beyond the specification limit.This paper studies and determines the final scheme to control projection distortion of Liangjiang New Area, and establish Coordinate conversion relation between Liangjiang New Area project coordinate system and Chongqing independent coordinate system, and proposed and programming of the coordinate conversion method of topographic map of DXF format.
