Open AccessGeographic location conversion tool
Author(s) -
D W Lepard
Publication year - 2008
Language(s) - English
Resource type - Reports
DOI - 10.4095/224828
Subject(s) - north american datum of 1927 , geographic coordinate system , geodetic datum , computer science , map projection , computer graphics (images) , grid , geocoding , geographic coordinate conversion , mercator projection , stereographic projection , coordinate system , geodesy , geography , cartography , computer vision , geometry , mathematics
This Windows application converts geographic coordinates between any pair of eleven systems; latitude and longitude as well as different grid and map projection systems. The grid systems supported are Township and Range, British Columbia's NTS-based grid system,the Canada Lands system, the UTM/UPS system, and the UTM/UPS-based Military system. The projections supported are Transverse Mercator, Polar Stereographic, Lambert Conformal, American Polyconic, and Albers Equal Area. Transformations can be done in either the NAD83, NAD27 or MAY76 datums. Use NAD83for WGS84. Note that the Twp Rge grids are assumed to be the same in each datum with the NAD83 coordinates being obtained by application of NTV2 on the NAD27 coordinates. To use the tool the user (1)enters a location and defines its coordinates system on the input source screen, (2)defines thedesired output system on the output destination screen, and (3)selects the find button. The application then calculates the location in the destination system. For File I/O the user is first given a screen with a choice of Long or Short Record format, then a screen to select the comma delimitedinput File. Records are of form: {source},identifier,{destination} and required quantities not specified default to the screen value. The output file has the same name as the input file except the extension is changed to '.new'. The application is a Delphi (Trade Mark) run-time module for WindowsXP and 95/98/00.