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• MapProjection

C# Class SharpMap.CoordinateSystems.Projections.MapProjection

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Protected Properties

Property	Type	Description
_Parameters	List
_e	double
_es	double
_inverse	SharpMap.CoordinateSystems.Transformations.MathTransform
_isInverse	bool
_isSpherical	bool
_semiMajor	double
_semiMinor	double

Private Properties

Property	Type	Description

Public Methods

Method	Description
DegreesToMeters ( SharpMap lonlat ) : SharpMap.Geometries.Point
EqualParams ( object obj ) : bool	Checks whether the values of this instance is equal to the values of another instance. Only parameters used for coordinate system are used for comparison. Name, abbreviation, authority, alias and remarks are ignored in the comparison.
GetParameter ( int Index ) : ProjectionParameter
GetParameter ( string name ) : ProjectionParameter	Gets an named parameter of the projection. The parameter name is case insensitive
Invert ( ) : void	Reverses the transformation
MetersToDegrees ( SharpMap p ) : SharpMap.Geometries.Point
Transform ( SharpMap cp ) : SharpMap.Geometries.Point
TransformList ( List ord ) : List

Protected Methods

Method	Description
CUBE ( double x ) : double	Returns the cube of a number.
GMAX ( double &A, double &B ) : double
GMIN ( double &A, double &B ) : double
IMOD ( double A, double B ) : double	IMOD
LatitudeToRadians ( double y, bool edge ) : double	Converts a latitude value in degrees to radians.
LongitudeToRadians ( double x, bool edge ) : double	Converts a longitude value in degrees to radians.
MapProjection ( List parameters ) : System
MapProjection ( List parameters, bool isInverse ) : System
QUAD ( double x ) : double	Returns the quad of a number.
adjust_lon ( double x ) : double
asinz ( double con ) : double	Function to eliminate roundoff errors in asin
calc_utm_zone ( double lon ) : long	Function to calculate UTM zone number--NOTE Longitude entered in DEGREES!!!
e0fn ( double x ) : double	Functions to compute the constants e0, e1, e2, and e3 which are used in a series for calculating the distance along a meridian. The input x represents the eccentricity squared.
e1fn ( double x ) : double
e2fn ( double x ) : double
e3fn ( double x ) : double
e4fn ( double x ) : double	Function to compute the constant e4 from the input of the eccentricity of the spheroid, x. This constant is used in the Polar Stereographic projection.
mlfn ( double e0, double e1, double e2, double e3, double phi ) : double	Function computes the value of M which is the distance along a meridian from the Equator to latitude phi.
msfnz ( double eccent, double sinphi, double cosphi ) : double	Function to compute the constant small m which is the radius of a parallel of latitude, phi, divided by the semimajor axis.
phi1z ( double eccent, double qs, long &flag ) : double
phi2z ( double eccent, double ts, long &flag ) : double	Function to compute the latitude angle, phi2, for the inverse of the Lambert Conformal Conic and Polar Stereographic projections.
qsfnz ( double eccent, double sinphi, double cosphi ) : double	Function to compute constant small q which is the radius of a parallel of latitude, phi, divided by the semimajor axis.
sign ( double x ) : double	Function to return the sign of an argument
sincos ( double val, double &sin_val, double &cos_val ) : void	Function to calculate the sine and cosine in one call. Some computer systems have implemented this function, resulting in a faster implementation than calling each function separately. It is provided here for those computer systems which don`t implement this function
tsfnz ( double eccent, double phi, double sinphi ) : double	Function to compute the constant small t for use in the forward computations in the Lambert Conformal Conic and the Polar Stereographic projections.

Method Details

Property Details