【QGIS跨平台编译】之【SpatiaLite跨平台编译】：Linux环境下编译成果（支撑QGIS跨平台编译，以及二次研发）

/* gg_advanced.h -- Gaia common support for geometries: advanced version 5.0, 2020 August 1 Author: Sandro Furieri a.furieri@lqt.it ------------------------------------------------------------------------------ Version: MPL 1.1/GPL 2.0/LGPL 2.1 The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. The Original Code is the SpatiaLite library The Initial Developer of the Original Code is Alessandro Furieri Portions created by the Initial Developer are Copyright (C) 2008-2021 the Initial Developer. All Rights Reserved. Contributor(s): Alternatively, the contents of this file may be used under the terms of either the GNU General Public License Version 2 or later (the "GPL"), or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), in which case the provisions of the GPL or the LGPL are applicable instead of those above. If you wish to allow use of your version of this file only under the terms of either the GPL or the LGPL, and not to allow others to use your version of this file under the terms of the MPL, indicate your decision by deleting the provisions above and replace them with the notice and other provisions required by the GPL or the LGPL. If you do not delete the provisions above, a recipient may use your version of this file under the terms of any one of the MPL, the GPL or the LGPL. */ /* CREDITS: this module has been partly funded by: Regione Toscana - Settore Sistema Informativo Territoriale ed Ambientale (wrapping liblwgeom APIs) */ /** \file gg_advanced.h Geometry handling functions: advanced */ #ifndef _GG_ADVANCED_H #ifndef DOXYGEN_SHOULD_SKIP_THIS #define _GG_ADVANCED_H #endif /** Gaia-to-GEOS: all geometries */ #define GAIA2GEOS_ALL 0 /** Gaia-to-GEOS: only geometries of the Point type */ #define GAIA2GEOS_ONLY_POINTS 1 /** Gaia-to-GEOS: only geometries of the Linestring type */ #define GAIA2GEOS_ONLY_LINESTRINGS 2 /** Gaia-to-GEOS: only geometries of the Polygon type */ #define GAIA2GEOS_ONLY_POLYGONS 3 #ifdef __cplusplus extern "C" { #endif #if defined(_WIN32) && !defined(__MINGW32__) #include <spatialite/gaiaconfig-msvc.h> #else #include <spatialite/gaiaconfig.h> #endif #ifndef OMIT_PROJ /* including PROJ */ /** Resets the PROJ error messages to an empty state \param p_cache a memory pointer returned by spatialite_alloc_connection() \sa gaiaSetProjErrorMsg_r, gaiaGetProjErrorMsg_r \note reentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE void gaiaResetProjErrorMsg_r (const void *p_cache); /** Set the current PROJ error message \param p_cache a memory pointer returned by spatialite_alloc_connection() \param msg the error message to be set. \sa gaiaResetProjErrorMsg_r, gaiaGetProjErrorMsg_r \note reentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE void gaiaSetProjErrorMsg_r (const void *p_cache, const char *msg); /** Return the latest PROJ error message (if any) \param p_cache a memory pointer returned by spatialite_alloc_connection() \return the latest PROJ error message: an empty string if no error was previoysly found. \sa gaiaSetProjErrorMsg_r, gaiaResetProjErrorMsg_r \note reentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE const char *gaiaGetProjErrorMsg_r (const void *p_cache); /** Sets the PATH leading to the private PROJ.6 database \param p_cache a memory pointer returned by spatialite_alloc_connection() \param path the pathname to be set \return the currently set PATH leading to the private PROJ.6 database; NULL if no PROJ database is defined. \sa gaiaGetProjDatabasePath \note reentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE const char *gaiaSetProjDatabasePath (const void *p_cache, const char *path); /** Return the currently set PATH leading to the private PROJ.6 database \param p_cache a memory pointer returned by spatialite_alloc_connection() \return the currently set PATH leading to the private PROJ.6 database; NULL if no PROJ database is defined. \sa gaiaSetProjDatabasePath \note reentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE const char *gaiaGetProjDatabasePath (const void *p_cache); /** Return the proj-string corresponding to a given CRS defined within the private PROJ.6 database \param p_cache a memory pointer returned by spatialite_alloc_connection() \param auth_name if NULL will be interpreted as "EPSG" \param auth_srid the intended CRS is identified by auth_name and auth_srid \return the proj-string expression corresponding to the given CRS NULL on failite. \note you are responsible to destroy (before or after) any proj-string returned by gaiaGetProjString() \nreentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE char *gaiaGetProjString (const void *p_cache, const char *auth_name, int auth_srid); /** Return the WKT expression corresponding to a given CRS defined within the private PROJ.6 database \param p_cache a memory pointer returned by spatialite_alloc_connection() \param auth_name if NULL will be interpreted as "EPSG" \param auth_srid the intended CRS is identified by auth_name and auth_srid \param style one between GAIA_PROJ_WKT_GDAL, GAIA_PROJ_WKT_ESRI, GAIA_PROJ_WKT_ISO_2015 or GAIA_PROJ_WKT_ISO_2018 (this latter being the default assumption). \param indented if TRUE the WKT expression will be properly indented, otherwise a solid string lacking any white space or new-line will be printed. \param indentation how many chars to be used for indenting (only considered if indented is TRUE). \return the WKT expression corresponding to the given CRS NULL on failite. \note you are responsible to destroy (before or after) any WKT string returned by gaiaGetProjWKT() \nreentrant and thread-safe. \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE char *gaiaGetProjWKT (const void *p_cache, const char *auth_name, int auth_srid, int style, int indented, int indentation); /** Return the SRID corresponding to a given WKT expression (if any) \param db_handle pointer to the current DB connection. \param p_cache a memory pointer returned by spatialite_alloc_connection() \param wkt the WKT expression to be evaluated. \param srid on successful completion will point to the SRID value matching the WKT expression. \return 0 on failure: any other value on success \remark \b PROJ.6 support required. */ GAIAGEO_DECLARE int gaiaGuessSridFromWKT (sqlite3 * db_handle, const void *p_cache, const char *wkt, int *srid); /** Converts and angle from Radians into Degrees \param rads the angle measured in Radians. \return the angle measured in Degrees. \sa gaiaDegsToRads \remark \b PROJ support required */ GAIAGEO_DECLARE double gaiaRadsToDegs (double rads); /** Converts and angle from Degrees into Radians \param degs the angle measured in Degrees. \return the angle measured in Radians. \sa gaiaRadsToDegs \remark \b PROJ support required */ GAIAGEO_DECLARE double gaiaDegsToRads (double degs); /** Tansforms a Geometry object into a different Reference System [aka Reprojection] \param org pointer to input Geometry object. \param proj_from geodetic parameters string [PROJ.4 format] qualifying the input Reference System \param proj_to geodetic parameters string [PROJ.4 format] qualifying the output Reference System \return