mapDatum.h File Reference

This file contains the declaration of the DtMapDatum class as well as commonly used DtMapDatums. More...

Go to the source code of this file.

Classes
class	DtSpheroid
	DtSpheroid represents an ellipsoid model of the earth. More...
class	DtMapDatum
	DtMapDatums represent a spheroid model of the earth, with a data shift to facilitate easy conversion to geocentric systems. More...
Functions
const DtMapDatum	DtWGS84 (DtWGS84Spheroid, 0.0, 0.0, 0.0)
const DtMapDatum	DtED50 (DtInternationalSpheroid,-87.0,-98.0,-121.0)
const DtMapDatum	DtNASANAD27 (DtClark1866Spheroid,-8.0, 161.0, 179.0)
const DtMapDatum	DtNASBNAD27 (DtClark1866Spheroid,-8.0, 159.0, 175.0)
const DtMapDatum	DtCONUSNAD27 (DtClark1866Spheroid,-8.0, 160.0, 176.0)
void	DtUseMapDatum (const DtMapDatum &md)
	Sets the default DtMapDatum used in geodetic conversions.
const DtMapDatum &	DtCurrentMapDatum ()
	Gets the default DtMapDatum used in geodetic conversions.
Variables
const DtSpheroid	DtWGS84Spheroid = { 6378137.0, 6356752.3142 }
	The WGS84 Spheroid is the most commonly used DtSpheroid.
const DtSpheroid	DtInternationalSpheroid = { 6378388.0, 6356911.946127 }
const DtSpheroid	DtClark1866Spheroid = { 6378206.4, 6356583.8 }

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Detailed Description

This file contains the declaration of the DtMapDatum class as well as commonly used DtMapDatums.

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Function Documentation

const DtMapDatum DtCONUSNAD27	(	DtClark1866Spheroid	,
		-8.	0,
		160.	0,
		176.	0
	)

const DtMapDatum& DtCurrentMapDatum

(

)

Gets the default DtMapDatum used in geodetic conversions.

const DtMapDatum DtED50	(	DtInternationalSpheroid	,
		-87.	0,
		-98.	0,
		-121.	0
	)

const DtMapDatum DtNASANAD27	(	DtClark1866Spheroid	,
		-8.	0,
		161.	0,
		179.	0
	)

const DtMapDatum DtNASBNAD27	(	DtClark1866Spheroid	,
		-8.	0,
		159.	0,
		175.	0
	)

void DtUseMapDatum

(

const DtMapDatum &

md

)

Sets the default DtMapDatum used in geodetic conversions.

const DtMapDatum DtWGS84	(	DtWGS84Spheroid	,
		0.	0,
		0.	0,
		0.	0
	)

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Variable Documentation

const DtSpheroid DtClark1866Spheroid = { 6378206.4, 6356583.8 }

const DtSpheroid DtInternationalSpheroid = { 6378388.0, 6356911.946127 }

const DtSpheroid DtWGS84Spheroid = { 6378137.0, 6356752.3142 }

The WGS84 Spheroid is the most commonly used DtSpheroid.