Unit CoordinateConversionUnit

Uses

Classes, Interfaces, Objects and Records

Types

Description

CoordinateConversionUnit is used to convert coordinates in latitude and longitude expressed in radians to X and Y coordinates expressed in the Universal Transverse Mercator (UTM) projection. See ConvertToUTM.

For more information, see Snyder, J.P., 1987, Map Projections—A Working Manual, U.S. Geological Survey Professional Paper 1395, 383 p.

Overview

Classes, Interfaces, Objects and Records

Name	Description
record `TEllipsoid`	`TEllipsoid` defines an ellipsoid used for converting from latitude and longitude to UTM coordinates.

Functions and Procedures

procedure ConvertToUTM(const LatitudeRadians, LongitudeRadians, CentralMeridianInRadians: double; out X, Y: double);

Constants

Clarke1866: TEllipsoid =
    (LowerCase_a: 6378206.4;
    e_square: 0.00676866;
    k_zero: 0.9996;
    e_prime_square: 0.00676866/(1-0.00676866));

Airy1830: TEllipsoid =
    (LowerCase_a: 6377563.396;
    e_square: 0.00667054;
    k_zero: 0.9996;
    e_prime_square: 0.00667054/(1-0.00667054));

Bessel1841: TEllipsoid =
    (LowerCase_a: 6377397.155;
    e_square: 0.006674372;
    k_zero: 0.9996;
    e_prime_square: 0.006674372/(1-0.006674372));

Clarke1880: TEllipsoid =
    (LowerCase_a: 6378249.145;
    e_square: 0.006803511;
    k_zero: 0.9996;
    e_prime_square: 0.006803511/(1-0.006803511));

Everest1830: TEllipsoid =
    (LowerCase_a: 6377276.345;
    e_square: 0.006637847;
    k_zero: 0.9996;
    e_prime_square: 0.006637847/(1-0.006637847));

Fischer1960: TEllipsoid =
    (LowerCase_a: 638166.0;
    e_square: 0.006693422;
    k_zero: 0.9996;
    e_prime_square: 0.006693422/(1-0.006693422));

Fischer1968: TEllipsoid =
    (LowerCase_a: 638150.0;
    e_square: 0.006693422;
    k_zero: 0.9996;
    e_prime_square: 0.006693422/(1-0.006693422));

GRS67_1967: TEllipsoid =
    (LowerCase_a: 6378160.0;
    e_square: 0.006694605;
    k_zero: 0.9996;
    e_prime_square: 0.006694605/(1-0.006694605));

GRS75_1975: TEllipsoid =
    (LowerCase_a: 6378140.0;
    e_square: 0.006694385;
    k_zero: 0.9996;
    e_prime_square: 0.006694385/(1-0.006694385));

GRS80_1980: TEllipsoid =
    (LowerCase_a: 6378137.0;
    e_square: 0.00669438;
    k_zero: 0.9996;
    e_prime_square: 0.00669438/(1-0.00669438));

Hough1956: TEllipsoid =
    (LowerCase_a: 6378270.0;
    e_square: 0.00672267;
    k_zero: 0.9996;
    e_prime_square: 0.00672267/(1-0.00672267));

International1924: TEllipsoid =
    (LowerCase_a: 6378388.0;
    e_square: 0.00672267;
    k_zero: 0.9996;
    e_prime_square: 0.00672267/(1-0.00672267));

Krassowsky1940: TEllipsoid =
    (LowerCase_a: 6378245.0;
    e_square: 0.006693422;
    k_zero: 0.9996;
    e_prime_square: 0.006693422/(1-0.006693422));

SouthAmerican1969: TEllipsoid =
    (LowerCase_a: 6378160.0;
    e_square: 0.006694542;
    k_zero: 0.9996;
    e_prime_square: 0.006694542/(1-0.006694542));

WGS60_1960: TEllipsoid =
    (LowerCase_a: 6378165.0;
    e_square: 0.006693422;
    k_zero: 0.9996;
    e_prime_square: 0.006693422/(1-0.006693422));

WGS66_1966: TEllipsoid =
    (LowerCase_a: 6378145;
    e_square: 0.006694542;
    k_zero: 0.9996;
    e_prime_square: 0.006694542/(1-0.006694542));

WGS72_1972: TEllipsoid =
    (LowerCase_a: 6378135;
    e_square: 0.006694318;
    k_zero: 0.9996;
    e_prime_square: 0.006694318/(1-0.006694318));

WGS84: TEllipsoid =
    (LowerCase_a: 6378137;
    e_square: 0.00669438;
    k_zero: 0.9996;
    e_prime_square: 0.00669438/(1-0.00669438));

Variables

Ellipsoid: TEllipsoid;

Description

Functions and Procedures

procedure ConvertToUTM(const LatitudeRadians, LongitudeRadians, CentralMeridianInRadians: double; out X, Y: double);

ConvertToUTM is converts coordinates in latitude and longitude expressed in radians to X and Y coordinates expressed in the Universal Transverse Mercator (UTM) projection. CentralMeridianInRadians is the central meridian of the zone UTM grid zone.

Constants

Clarke1866: TEllipsoid =
    (LowerCase_a: 6378206.4;
    e_square: 0.00676866;
    k_zero: 0.9996;
    e_prime_square: 0.00676866/(1-0.00676866));

From Snyder, 1987.

See Ellipsoid

Airy1830: TEllipsoid =
    (LowerCase_a: 6377563.396;
    e_square: 0.00667054;
    k_zero: 0.9996;
    e_prime_square: 0.00667054/(1-0.00667054));

from Peter H. Dana.

http://www.colorado.edu/geography/gcraft/notes/coordsys/coordsys_f.html See also http://earth-info.nga.mil/GandG/coordsys/datums/ellips.txt

Variables

Ellipsoid: TEllipsoid;

Ellipsoid is the ellipsoid used for converting coordinates in latitude and longitude to UTM coordinates. See ConvertToUTM