编制了月球地图投影计算软件；
地图投影是地图学的数学基础。
麦卡托式是最常用的世界地图投影法。
The mercator projection is one of the most used world map projection.
地图投影变换是数学制图学的一个新的研究和应用领域。
Map projection transformation is a new research and application field of mathematical cartography.
每个地图投影都弯曲距离、面积、形状、方向或它们的组合。
Every map projection distorts distance, area, shape, direction, or some combination thereof.
我使用的谷歌地图投影的方法来计算两个纬度和经度的距离。
I am using Google maps projection method to calculate the distance between two latitude and longitude.
对地图投影学中经常遇到的等量纬度正反解展开式进行了新的研究。
The expansions of conformal latitude in map projection are studied in this paper.
地图投影变换是地图制图理论的基础，也是GIS的重要组成部分。
The transformation of map projection is the base for mapping theory and an important component of GIS.
根据地图投影坐标系，经过数学推导，将地图信息要素进行数字化。
A method of digitization of map information was mathematically conducted and a computer programme was developed, according to the coordinate systems in cylinder and cone map projections.
纸上或屏幕上的地图是平面的；它们需要从地球的曲面向平面进行转换：地图投影。
Maps (on paper or on the screen) are flat surfaces; they require a transformation from the curved surface of the earth to the flat plane: a map projection.
绘图法中的地图投影方法可以在平面中表示一个两维的曲面，例如一个标准地图。
Map projection in cartography is a way to present a two-dimensional curved surface on a plane, such as a normal map. Figure 2 shows a Traverse Mercator projection.
根据地图投影变换原理，提出了一种新的地图投影变换方法，即牛顿迭代法。
This paper provides a new method for coordinate transformation between these two types and based on Newton's iterative method, which is derived from map projection principle.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
A new kind of variable scale projection is obtained. This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
经过地理定位、地图投影后，读取了地球同步气象卫星红外灰度，计算了导出物理量。
Using infrared data of Geostationary Meteorological Satellite, the gray scale and other kinds of element were calculated or derived after map projecting and geographic calibrating.
地理信息系统软件主要应用于地理信息系统部门，所用到的坐标系与地图投影密切相关。
The GIS software is mainly applied to the department of Geography Information system. Its coordinate system is closely related with map projection.
本文从新的角度提出了一类在计算机辅助制图情况下具有灵活、通用性的多焦点地图投影方法。
Viewing from a new Angle, the authors of this paper put forward a CAC-based general multi-focal projection with much flexibility and universality.
南极地区常用的地图投影方式有：极方位立体投影、横轴墨卡托投影、兰伯特正形圆锥投影等三种等角投影。
There are three popular map projections in Antarctica-Polar Stereographic projection, Transverse Mecator projection and Lambert conformal Conic projection. They are all conformal.
南极地区常用的地图投影方式有：极方位立体投影、横轴墨卡托投影、兰伯特正形圆锥投影等三种等角投影。
There are three popular map projections in Antarctica-Polar Stereographic projection, Transverse Mecator projection and Lambert Conformal Conic projection.
文中简明扼要地总结了几种常用的地图投影变换和大地测量成果转换，并给出算法及实现步骤，供作图人员参考。
In this paper author concisely summarizes a few common map-projection transforms and the result conversion of geodetic survey and gives their computer algorithm and the source program.
通过对地图投影原理的分析，提出了将我国目前通用的80坐标系所采用的IAG75椭球进行投影变换的方法。
Through analyzing the theory of projection, this paper gives an projection transform method by which can convert IAG75 spheroid, used by 80 coordinate system, which widely used in China.
GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
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