/usr/include/geotranz/dtcc/GeoidLibrary.h is in libgeotranz3-dev 3.3-1.
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#ifndef GeoidLibrary_H
#define GeoidLibrary_H
/***************************************************************************/
/* RSC IDENTIFIER: Geoid Library
*
* ABSTRACT
*
* The purpose of GEOID is to support conversions between WGS84 ellipsoid
* heights and WGS84 geoid heights.
*
*
* ERROR HANDLING
*
* This component checks parameters for valid values. If an invalid value
* is found, the error code is combined with the current error code using
* the bitwise or. This combining allows multiple error codes to be
* returned. The possible error codes are:
*
* GEOID_NO_ERROR : No errors occurred in function
* GEOID_FILE_OPEN_ERROR : Geoid file opening error
* GEOID_INITIALIZE_ERROR : Geoid separation database can not initialize
* GEOID_LAT_ERROR : Latitude out of valid range
* (-90 to 90 degrees)
* GEOID_LON_ERROR : Longitude out of valid range
* (-180 to 360 degrees)
*
* REUSE NOTES
*
* Geoid is intended for reuse by any application that requires conversion
* between WGS84 ellipsoid heights and WGS84 geoid heights.
*
* REFERENCES
*
* Further information on Geoid can be found in the Reuse Manual.
*
* Geoid originated from : U.S. Army Topographic Engineering Center
* Geospatial Information Division
* 7701 Telegraph Road
* Alexandria, VA 22310-3864
*
* LICENSES
*
* None apply to this component.
*
* RESTRICTIONS
*
* Geoid has no restrictions.
*
* ENVIRONMENT
*
* Geoid was tested and certified in the following environments
*
* 1. Solaris 2.5 with GCC 2.8.1
* 2. MS Windows XP with MS Visual C++ 6.0
*
*
* MODIFICATIONS
*
* Date Description
* ---- -----------
* 24-May-99 Original Code
* 09-Jan-06 Added new geoid height interpolation methods
* 03-14-07 Original C++ Code
* 05-12-10 S. Gillis, BAEts26542, MSL-HAE for 30 minute grid added
* 07-21-10 Read in full file at once instead of one post at a time
* 12-17-10 RD Craig added pointer to EGM2008 interpolator (BAEts26267).
*
*/
#include "egm2008_geoid_grid.h"
#include "DtccApi.h"
namespace MSP
{
class CCSThreadMutex;
namespace CCS
{
class GeoidLibraryCleaner;
class MSP_DTCC_API GeoidLibrary
{
friend class GeoidLibraryCleaner;
public:
/* The function getInstance returns an instance of the GeoidLibrary
*/
static GeoidLibrary* getInstance();
/*
* The function removeInstance removes this GeoidLibrary
* instance from the total number of instances.
*/
static void removeInstance();
~GeoidLibrary( void );
/*
* The function convertEllipsoidToEGM96FifteenMinBilinearGeoidHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent
* geoid height, using the EGM96 gravity model and
* the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Geoid height, in meters. (output)
*
*/
void convertEllipsoidToEGM96FifteenMinBilinearGeoidHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEllipsoidToEGM96VariableNaturalSplineHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent geoid height,
* using the EGM96 gravity model and
* the natural spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Geoid height, in meters. (output)
*
*/
void convertEllipsoidToEGM96VariableNaturalSplineHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEllipsoidToEGM84TenDegBilinearHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent geoid height,
* using the EGM84 gravity model and
* the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Geoid height, in meters. (output)
*
*/
void convertEllipsoidToEGM84TenDegBilinearHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEllipsoidToEGM84TenDegNaturalSplineHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent geoid height,
* using the EGM84 gravity model and
* the natural splineinterpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Geoid height, in meters. (output)
*
*/
void convertEllipsoidToEGM84TenDegNaturalSplineHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEllipsoidToEGM84ThirtyMinBiLinearHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent geoid height,
* using the EGM84 gravity model and
* the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Geoid height, in meters. (output)
*/
void convertEllipsoidToEGM84ThirtyMinBiLinearHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEllipsoidHeightToEGM2008GeoidHeight
* converts the specified WGS84 ellipsoid height at the specified
* geodetic coordinates to the equivalent height above the geoid. This function
* uses the EGM2008 gravity model, plus the bicubic spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* ellipsoidHeight : Ellipsoid height, in meters (input)
* geoidHeight : Height above the geoid, meters (output)
*/
void
convertEllipsoidHeightToEGM2008GeoidHeight(
double longitude,
double latitude,
double ellipsoidHeight,
double *geoidHeight );
/*
* The function convertEGM96FifteenMinBilinearGeoidToEllipsoidHeight
* converts the specified WGS84 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height,
* using the EGM96 gravity model and
* the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Geoid height, in meters. (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*
*/
void convertEGM96FifteenMinBilinearGeoidToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
/*
* The function convertEGM96VariableNaturalSplineToEllipsoidHeight
* converts the specified WGS84 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height,
* using the EGM96 gravity model and
* the natural spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Geoid height, in meters. (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*
*/
void convertEGM96VariableNaturalSplineToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
/*
* The function convertEGM84TenDegBilinearToEllipsoidHeight
* converts the specified WGS84 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height, using
* the EGM84 gravity model and
* the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Geoid height, in meters. (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*
*/
void convertEGM84TenDegBilinearToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
/*
* The function convertEGM84TenDegNaturalSplineToEllipsoidHeight
* converts the specified WGS84 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height,
* using the EGM84 gravity model and
* the natural spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Geoid height, in meters. (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*
*/
void convertEGM84TenDegNaturalSplineToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
/*
* The function convertEGM84ThirtyMinBiLinearToEllipsoidHeight
* converts the specified WGS84 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height, using
* the EGM84 gravity model and the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Geoid height, in meters. (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*
*/
void convertEGM84ThirtyMinBiLinearToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
/*
* The function convertEGM2008GeoidHeightToEllipsoidHeight(
* converts the specified EGM2008 geoid height at the specified
* geodetic coordinates to the equivalent ellipsoid height. It uses
* the EGM2008 gravity model, plus the bicubic spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* geoidHeight : Height above the geoid, meters (input)
* ellipsoidHeight : Ellipsoid height, in meters (output)
*/
void convertEGM2008GeoidHeightToEllipsoidHeight(
double longitude,
double latitude,
double geoidHeight,
double *ellipsoidHeight );
protected:
/*
* The constructor creates empty lists which are used
* to store the geoid separation data
* contained in the data files egm84.grd and egm96.grd.
*
* The constructor now also instantiates the
* appropriate EGM2008 geoid separation interpolator.
*/
GeoidLibrary();
GeoidLibrary( const GeoidLibrary &gl );
GeoidLibrary& operator=( const GeoidLibrary &gl );
private:
static CCSThreadMutex mutex;
static GeoidLibrary* instance;
static int instanceCount;
/* List of EGM96 elevations */
float *egm96GeoidList;
/* List of EGM84 elevations */
float *egm84GeoidList;
/* List of EGM84 thirty minute elevations */
double *egm84ThirtyMinGeoidList;
/* Pointer to EGM2008 interpolator object */
Egm2008GeoidGrid* egm2008Geoid;
/*
* The function loadGeoids reads geoid separation data from a file
* in the current directory and builds the geoid separation table
* from it.
* If the separation file can not be found or accessed, an
* error code of GEOID_FILE_OPEN_ERROR is returned,
* If the separation file is incomplete or improperly formatted,
* an error code of GEOID_INITIALIZE_ERROR is returned,
* otherwise GEOID_NO_ERROR is returned.
* This function must be called before
* any of the other functions in this component.
*/
void loadGeoids();
/*
* The function initializeEGM96Geoid reads geoid separation data
* from the egm96.grd file in the current directory
* and builds a geoid separation table from it.
* If the separation file can not be found or accessed,
* an error code of GEOID_FILE_OPEN_ERROR is returned,
* If the separation file is incomplete or improperly formatted,
* an error code of GEOID_INITIALIZE_ERROR is returned,
* otherwise GEOID_NO_ERROR is returned.
*/
void initializeEGM96Geoid();
/*
* The function initializeEGM84Geoid reads geoid separation data
* from a file in the current directory and builds
* the geoid separation table from it.
* If the separation file can not be found or accessed,
* an error code of GEOID_FILE_OPEN_ERROR is returned,
* If the separation file is incomplete or improperly formatted,
* an error code of GEOID_INITIALIZE_ERROR is returned,
* otherwise GEOID_NO_ERROR is returned.
*/
void initializeEGM84Geoid();
/*
* The function initializeEGM84ThirtyMinGeoid reads geoid
* separation data from a file in the current directory and builds
* the geoid separation table from it.
* If the separation file can not be found or accessed,
* an error code of GEOID_FILE_OPEN_ERROR is returned,
* If the separation file is incomplete or improperly formatted,
* an error code of GEOID_INITIALIZE_ERROR is returned,
* otherwise GEOID_NO_ERROR is returned.
*/
void initializeEGM84ThirtyMinGeoid();
/*
* The function initializeEGM2008Geoid
* instantiates one of two geoid-separation objects.
* The FULL_GRID interpolator reads the entire
* geoid-separation file into memory upon instantiation,
* while the AOI_GRID interpolator only reads the
* grid file's header into memory upon instantiation.
*
* The FULL_GRID interpolator builds its local interpolation
* windows from data contained in the worldwide, memory-resident,
* geoid separation grid. The AOI_GRID interpolator reads intermediate
* Area of Interest grids into memory before populating local interpolation
* windows. These AOI grids are much smaller than the EGM2008 worldwide grid,
* so they load quickly, and they permit high-resolution geoid separations to be
* computed even on small computer systems. AOI grids do not need to be reloaded
* into computer memory if all requested geoid separations are spatially localized.
* AOI grid reloads are automatic, and they require no action by GeoidLibrary users.
*/
void initializeEGM2008Geoid();
/*
* The private function bilinearInterpolateDoubleHeights returns the
* height of the WGS84 geoid above or below the WGS84 ellipsoid,
* at the specified geodetic coordinates,
* using a grid of height adjustments
* and the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* scale_factor : Grid scale factor (input)
* num_cols : Number of columns in grid (input)
* num_rows : Number of rows in grid (input)
* height_buffer : Grid of height adjustments, doubles (input)
* delta_height : Height Adjustment, in meters. (output)
*
*/
void bilinearInterpolateDoubleHeights(
double longitude,
double latitude,
double scale_factor,
int num_cols,
int num_rows,
double *height_buffer,
double *delta_height );
/*
* The private function bilinearInterpolate returns the height of
* the WGS84 geoid above or below the WGS84 ellipsoid, at the
* specified geodetic coordinates, using a grid of height
* adjustments and the bilinear interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* scale_factor : Grid scale factor (input)
* num_cols : Number of columns in grid (input)
* num_rows : Number of rows in grid (input)
* height_buffer : Grid of height adjustments, floats (input)
* delta_height : Height Adjustment, in meters. (output)
*
*/
void bilinearInterpolate(
double longitude,
double latitude,
double scale_factor,
int num_cols,
int num_rows,
float *height_buffer,
double *delta_height );
/*
* The private function naturalSplineInterpolate returns the
* height of the WGS84 geoid above or below the WGS84 ellipsoid,
* at the specified geodetic coordinates,
* using a grid of height adjustments
* and the natural spline interpolation method.
*
* longitude : Geodetic longitude in radians (input)
* latitude : Geodetic latitude in radians (input)
* scale_factor : Grid scale factor (input)
* num_cols : Number of columns in grid (input)
* num_rows : Number of rows in grid (input)
* height_buffer : Grid of height adjustments (input)
* DeltaHeight : Height Adjustment, in meters. (output)
*
*/
void naturalSplineInterpolate(
double longitude,
double latitude,
double scale_factor,
int num_cols,
int num_rows,
int max_index,
float *height_buffer,
double *delta_height );
/*
* Delete the singleton.
*/
static void deleteInstance();
};
}
}
#endif
// CLASSIFICATION: UNCLASSIFIED
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