The simple formula to compute geodetic coordinate from rectangular space coordinate;

Deducing from geodetic coordinate differential formula;

Road curve geodetic coordinate calculation based on branch traverse survey

By analyzing shortcomings of the simplified model of Gauss-Kruger projection of the conversion from geographic coordinates to rectangular coordinates,a new reversible algorithm which is based on global model and is compensated by correct function using curve fitting is provided.

By analyzing the theory of geographic coordinates and rectangular coordinates interconversion, algorithmic researches and completion of coordinate conversion programming has been discussed.

To construct a digital map based on geographic coordinates is a better method to bring digital maps in different coordinate systems or projection zones into one system or joint them.

This paper proposes a new automatic SAR images coarse registration method based on the geographical coordinates(latitude and longitude) parameter.

The formula for area of triangle on ellipsoid by means of geodesic coordinate is derived in this paper.

This digital terrain model (DTM) based on the ellipsoidal surface is essentially different from DTM based on projected plane because the Delaunay triangulation net is built based on geodesic coordinate system on regional ellipsoidal surface.

Another type of geodesic coordinate system with length quantity as coordinate parameter is present for the first time in our last paper .