Measurements of Distances from Compound Projection for GIS

摘要

The revolution of technologies in the field of geodesy is important for the coordinates system used in surveying work and geographic information system"GIS", this paper presents a system of coordinates by harmonic equations projection "the projections of united", who have five projections (Mercator, Lambert, Russell, Lagrange, and the compound of the projection) in one zone coordinate system. The theory of the projections by a harmonic equations as well as Lagrange projection have eight direct algorithms defined Professor Vladimir podshivolev 1998 with a difficulty and very complicated method. This paper has added news direct algorithms for compound projection, as well as presents distortions scale factor for measured distances for Malaysia also smart local system for cities.