Rogue Wave Views Maps Package API Reference Guide |
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Defines the Universal Polar Stereographic projection, also known as the UPS projection. More...
#include <ilviews/maps/projection/unipolst.h>
Public Member Functions | |
IlvUniversalPolarStereographicProjection (IlBoolean south=IlFalse) | |
Initializes an instance of the UPS projection. More... | |
IlBoolean | isSouth () const |
Checks if the projection is set for the South Pole. More... | |
virtual void | setLLCenter (IlDouble, IlDouble) |
Specifies the central meridian and the central parallel (in radian) associated with the projection. More... | |
virtual void | setScaleFactor (IlDouble) |
Sets the scale factor applied to the central meridian. More... | |
void | setSouth (IlBoolean south) |
Sets the projection either for the South Pole or for the North Pole. More... | |
virtual void | write (IlvOutputFile &) const |
Saves the parameters of a projection to the specified output file. More... | |
Public Member Functions inherited from IlvStereographicProjection | |
IlvStereographicProjection () | |
Initializes a new of the class IlvStereographicProjection instance. | |
IlDouble | getLatitudeOfTrueScale () const |
Returns the latitude of the true scale in radian. More... | |
IlDouble | getScaleFactor () const |
Returns the scale factor applied to the central meridian. More... | |
virtual IlvMapsError | setEllipsoid (const IlvEllipsoid &) |
Sets the ellipsoid used for the projection. More... | |
void | setLatitudeOfTrueScale (IlDouble latitudeOfTrueScale) |
Sets the latitude of the true scale in radian. More... | |
Public Member Functions inherited from IlvProjection | |
virtual IlvProjection * | copy () const =0 |
Returns a copy of the projection. More... | |
IlvMapsError | forward (const IlvCoordinate &llIn, IlvCoordinate &xyOut) const |
Converts a latitude and a longitude to Cartesian coordinates (x, y). More... | |
IlvMapsError | forward (IlvCoordinate &coords) const |
Projects a latitude and a longitude pair to Cartesian coordinates. More... | |
IlDouble | getCentralMeridian () const |
Returns the central meridian of the projection. More... | |
IlDouble | getCentralParallel () const |
Returns the central parallel of the projection. More... | |
virtual IlvProjectionClassInfo * | getClassInfo () const |
Returns the class information for the projection. More... | |
const IlvHorizontalDatum * | getDatum (void) const |
Returns the horizontal datum used for the projection. More... | |
const IlvEllipsoid * | getEllipsoid () const |
Returns the ellipsoid used for the projection. More... | |
IlvMapsError | getError () const |
Returns the status of the projection. More... | |
IlDouble | getFalseEasting () const |
Returns the false easting of the projection. More... | |
IlDouble | getFalseNorthing () const |
Returns the false northing of the projection. More... | |
IlvProjectionInterface * | getInterface () |
Returns the interface of the projection. More... | |
IlvCoordinate | getLLCenter (void) const |
Returns the central meridian and the central parallel associated with the projection (0-0 by default). More... | |
IlvProjectionGeometricProperty | getProperty () const |
Returns the geometric property of the projection. More... | |
const IlvUnitConverter * | getUnitConverter () const |
Returns the unit converter. More... | |
IlvCoordinate | getXYOffset () const |
Returns the false easting and the false northing of the projection. More... | |
IlvMapsError | inverse (const IlvCoordinate &xyIn, IlvCoordinate &llOut) const |
Converts the specified coordinate to a latitude and a longitude. More... | |
IlvMapsError | inverse (IlvCoordinate &coords) const |
Invserse-projects Cartesian coordinates to a latitude and a longitude. More... | |
IlBoolean | isBad () const |
Checks for an inconsistent state of the projection. More... | |
IlBoolean | isEllipsoidEnabled () const |
Indicates if non spherical ellipsoids can be used for the projection. More... | |
IlBoolean | isGeocentric () const |
Checks if the projection uses geocentric latitudes. More... | |
IlBoolean | isInverseEnabled () const |
Indicates if the inverse function is supported by the projection. More... | |
IlBoolean | isShared () const |
Indicates that the projection is shared. More... | |
IlBoolean | isUsingLongitudeReduction () const |
Returns IlTrue if the projection uses range reduction for longitudes. More... | |
void | lock () |
Locks the projection. | |
virtual std::ostream & | printPROJ4Descriptor (std::ostream &ostr, IlvMapsError *status=0) const |
This virtual member function converts the projection to a string in the PROJ4 format. More... | |
void | save (IlvOutputFile &outputFile) const |
Saves an instance of a subclass of IlvProjection to the specified output file. More... | |
void | setCentralMeridian (IlDouble lon) |
Sets the central meridian of the projection. More... | |
void | setCentralParallel (IlDouble lat) |
Sets the central parallel of the projection. More... | |
virtual IlvMapsError | setDatum (const IlvHorizontalDatum *datum) |
Sets the datum used for the projection. More... | |
void | setFalseEasting (IlDouble falseEasting) |
Sets the false easting of the projection. More... | |
void | setFalseNorthing (IlDouble falseNorthing) |
Sets the false northing of the projection. More... | |
void | setGeocentric (IlBoolean geoc) |
Specifies whether the projection uses geocentric or geodetic latitudes. More... | |
void | setShared () |
Specifies that the projection will be shared. More... | |
void | setUnitConverter (const IlvUnitConverter &converter) |
Sets the unit converter of the projection. More... | |
void | setUsingLongitudeReduction (IlBoolean use) |
Specifies whether the projection uses longitude reduction. More... | |
void | setXYOffset (IlDouble x0, IlDouble y0) |
Specifies the false easting and the false northing. More... | |
void | unLock () |
Unlocks the object. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from IlvProjection | |
static IlvProjectionClassInfo * | ClassInfo () |
Returns the class information of the class. More... | |
static IlvClassInfo ** | ClassInfoRef () |
Returns the address of the class information of the class. More... | |
static IlvMapsError | InputError () |
Indicates that the coordinates passed to the forward function are not in a valid range for radian angles. | |
static IlvMapsError | InvalidEllipsoidError () |
Indicates that you attempt to set a non spherical ellipsoid to a projection that does not support non spherical ellipsoids. | |
static IlvProjection * | Load (IlvInputFile &inputFile) |
Loads a projection from the specified file. More... | |
static IlvProjection * | PROJ4ToIlvProjection (const char *proj4Descriptor, IlvMapsError *status=0) |
Creates the projection from a PROJ4 descriptor. More... | |
static IlvMapsError | ToleranceConditionError () |
Indicates that an internal projection computation failed. More... | |
static IlvMapsError | UnsupportedFeatureError () |
Indicates that an unsupported projection feature is requested, like inverse projection for a projection that does not support inverse projection. | |
Protected Member Functions inherited from IlvStereographicProjection | |
virtual IlvMapsError | eForward (IlvCoordinate &) const |
Must be redefined in subclasses to implement the projection for a non spherical ellipsoid. More... | |
virtual IlvMapsError | eInverse (IlvCoordinate &) const |
Implements the inverse projection for a non spherical ellipsoid. More... | |
virtual IlvMapsError | sForward (IlvCoordinate &) const |
Must be redefined in subclasses to implement the projection for a sphere. More... | |
virtual IlvMapsError | sInverse (IlvCoordinate &) const |
Must be redefined in subclasses to implement the inverse projection for a sphere. More... | |
Protected Member Functions inherited from IlvProjection | |
IlvProjection (IlBoolean ellipsoidEnabled, IlBoolean inverseEnabled, IlvProjectionGeometricProperty property) | |
Initializes a new IlvProjection instance. More... | |
void | addError (IlvMapsError error) |
Used by the constructors of subclasses if an error occurs during an object initialization. More... | |
void | setError (IlvMapsError error) |
Sets the status of this projection. More... | |
Defines the Universal Polar Stereographic projection, also known as the UPS projection.
Library: ilvmaps
The UPS projection is a preconfigured form of the Stereographic projection. It is generally used with non-spherical ellipsoids. It is designed to cover regions where lat >= 84N or lat <= 80S. The scale factor is fixed to 0.994. The false northing and false easting are set to 2,000,000 m.
Universal Polar Stereographic Projection
IlvUniversalPolarStereographicProjection::IlvUniversalPolarStereographicProjection | ( | IlBoolean | south = IlFalse | ) |
Initializes an instance of the UPS projection.
The ellipsoid is set to the WGS84 ellipsoid. south is set to IlFalse
by default, which means that the projection is initialized for the North Pole.
IlBoolean IlvUniversalPolarStereographicProjection::isSouth | ( | ) | const |
Checks if the projection is set for the South Pole.
This member function returns IlTrue
if the projection is set for the South Pole or IlFalse
if the projection is set for the North Pole (the default value).
IlTrue
if the projection is set for the South Pole, IlFalse
otherwise.
|
virtual |
Specifies the central meridian and the central parallel (in radian) associated with the projection.
By default, theses values are set to 0
.
This function is virtual because it can be overridden by subclasses of IlvProjection
to update the internal parameters when the center is changed.
lon | The central meridian in radian. |
lat | The central parallel in radian. |
Reimplemented from IlvStereographicProjection.
|
virtual |
Sets the scale factor applied to the central meridian.
By default, the scale factor is 1
.
k0 | The new scale factor applied to the central meridian. |
Reimplemented from IlvStereographicProjection.
void IlvUniversalPolarStereographicProjection::setSouth | ( | IlBoolean | south | ) |
Sets the projection either for the South Pole or for the North Pole.
This member function sets the projection either for the South Pole or for the North Pole, depending on the value of the Boolean flag south
.
south | Specifies if the projection is to be set for the South Pole. |
|
virtual |
Saves the parameters of a projection to the specified output file.
It must be overridden by subclasses of IlvProjection
that need to save additional parameters.
This function should not be directly called; use the save()
function instead.
outputFile | The file to write the projection parameters to. |
Reimplemented from IlvStereographicProjection.
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