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|
#ifndef _XPLMNavigation_h_
#define _XPLMNavigation_h_
/*
* Copyright 2005-2012 Sandy Barbour and Ben Supnik
*
* All rights reserved. See license.txt for usage.
*
* X-Plane SDK Version: 2.1.1
*
*/
/*
* XPLMNavigation - THEORY OF OPERATION
*
* The XPLM Navigation APIs give you some access to the navigation databases
* inside X-Plane. X-Plane stores all navigation information in RAM, so by
* using these APIs you can gain access to most information without having to
* go to disk or parse the files yourself.
*
* You can also use this API to program the FMS. You must use the navigation
* APIs to find the nav-aids you want to program into the FMS, since the FMS
* is powered internally by x-plane's navigation database.
*
*/
#include "XPLMDefs.h"
#ifdef __cplusplus
extern "C" {
#endif
/***************************************************************************
* NAVIGATION DATABASE ACCESS
***************************************************************************/
/*
*
*
*/
/*
* XPLMNavType
*
* These enumerations define the different types of navaids. They are each
* defined with a separate bit so that they may be bit-wise added together to
* form sets of nav-aid types.
*
* NOTE: xplm_Nav_LatLon is a specific lat-lon coordinate entered into the
* FMS. It will not exist in the database, and cannot be programmed into the
* FMS. Querying the FMS for navaids will return it. Use
* XPLMSetFMSEntryLatLon to set a lat/lon waypoint.
*
*/
enum {
xplm_Nav_Unknown = 0
,xplm_Nav_Airport = 1
,xplm_Nav_NDB = 2
,xplm_Nav_VOR = 4
,xplm_Nav_ILS = 8
,xplm_Nav_Localizer = 16
,xplm_Nav_GlideSlope = 32
,xplm_Nav_OuterMarker = 64
,xplm_Nav_MiddleMarker = 128
,xplm_Nav_InnerMarker = 256
,xplm_Nav_Fix = 512
,xplm_Nav_DME = 1024
,xplm_Nav_LatLon = 2048
};
typedef int XPLMNavType;
/*
* XPLMNavRef
*
* XPLMNavRef is an iterator into the navigation database. The navigation
* database is essentially an array, but it is not necessarily densely
* populated. The only assumption you can safely make is that like-typed
* nav-aids are grouped together.
*
* Use XPLMNavRef to refer to a nav-aid.
*
* XPLM_NAV_NOT_FOUND is returned by functions that return an XPLMNavRef when
* the iterator must be invalid.
*
*/
typedef int XPLMNavRef;
#define XPLM_NAV_NOT_FOUND -1
/*
* XPLMGetFirstNavAid
*
* This returns the very first navaid in the database. Use this to traverse
* the entire database. Returns XPLM_NAV_NOT_FOUND if the nav database is
* empty.
*
*/
XPLM_API XPLMNavRef XPLMGetFirstNavAid(void);
/*
* XPLMGetNextNavAid
*
* Given a nav aid ref, this routine returns the next navaid. It returns
* XPLM_NAV_NOT_FOUND if the nav aid passed in was invalid or if the navaid
* passed in was the last one in the database. Use this routine to iterate
* across all like-typed navaids or the entire database.
*
* WARNING: due to a bug in the SDK, when fix loading is disabled in the
* rendering settings screen, calling this routine with the last airport
* returns a bogus nav aid. Using this nav aid can crash x-plane.
*
*/
XPLM_API XPLMNavRef XPLMGetNextNavAid(
XPLMNavRef inNavAidRef);
/*
* XPLMFindFirstNavAidOfType
*
* This routine returns the ref of the first navaid of the given type in the
* database or XPLM_NAV_NOT_FOUND if there are no navaids of that type in the
* database. You must pass exactly one nav aid type to this routine.
*
* WARNING: due to a bug in the SDK, when fix loading is disabled in the
* rendering settings screen, calling this routine with fixes returns a bogus
* nav aid. Using this nav aid can crash x-plane.
*
*/
XPLM_API XPLMNavRef XPLMFindFirstNavAidOfType(
XPLMNavType inType);
/*
* XPLMFindLastNavAidOfType
*
* This routine returns the ref of the last navaid of the given type in the
* database or XPLM_NAV_NOT_FOUND if there are no navaids of that type in the
* database. You must pass exactly one nav aid type to this routine.
*
* WARNING: due to a bug in the SDK, when fix loading is disabled in the
* rendering settings screen, calling this routine with fixes returns a bogus
* nav aid. Using this nav aid can crash x-plane.
*
*/
XPLM_API XPLMNavRef XPLMFindLastNavAidOfType(
XPLMNavType inType);
/*
* XPLMFindNavAid
*
* This routine provides a number of searching capabilities for the nav
* database. XPLMFindNavAid will search through every nav aid whose type is
* within inType (multiple types may be added together) and return any
* nav-aids found based on the following rules:
*
* If inLat and inLon are not NULL, the navaid nearest to that lat/lon will be
* returned, otherwise the last navaid found will be returned.
*
* If inFrequency is not NULL, then any navaids considered must match this
* frequency. Note that this will screen out radio beacons that do not have
* frequency data published (like inner markers) but not fixes and airports.
*
* If inNameFragment is not NULL, only navaids that contain the fragment in
* their name will be returned.
*
* If inIDFragment is not NULL, only navaids that contain the fragment in
* their IDs will be returned.
*
* This routine provides a simple way to do a number of useful searches:
*
* Find the nearest navaid on this frequency. Find the nearest airport. Find
* the VOR whose ID is "KBOS". Find the nearest airport whose name contains
* "Chicago".
*
*/
XPLM_API XPLMNavRef XPLMFindNavAid(
const char * inNameFragment, /* Can be NULL */
const char * inIDFragment, /* Can be NULL */
float * inLat, /* Can be NULL */
float * inLon, /* Can be NULL */
int * inFrequency, /* Can be NULL */
XPLMNavType inType);
/*
* XPLMGetNavAidInfo
*
* This routine returns information about a navaid. Any non-null field is
* filled out with information if it is available.
*
* Frequencies are in the nav.dat convention as described in the X-Plane nav
* database FAQ: NDB frequencies are exact, all others are multiplied by 100.
*
* The buffer for IDs should be at least 6 chars and the buffer for names
* should be at least 41 chars, but since these values are likely to go up, I
* recommend passing at least 32 chars for IDs and 256 chars for names when
* possible.
*
* The outReg parameter tells if the navaid is within the local "region" of
* loaded DSFs. (This information may not be particularly useful to plugins.)
* The parameter is a single byte value 1 for true or 0 for false, not a C
* string.
*
*/
XPLM_API void XPLMGetNavAidInfo(
XPLMNavRef inRef,
XPLMNavType * outType, /* Can be NULL */
float * outLatitude, /* Can be NULL */
float * outLongitude, /* Can be NULL */
float * outHeight, /* Can be NULL */
int * outFrequency, /* Can be NULL */
float * outHeading, /* Can be NULL */
char * outID, /* Can be NULL */
char * outName, /* Can be NULL */
char * outReg); /* Can be NULL */
/***************************************************************************
* FLIGHT MANAGEMENT COMPUTER
***************************************************************************/
/*
* Note: the FMS works based on an array of entries. Indices into the array
* are zero-based. Each entry is a nav-aid plus an altitude. The FMS tracks
* the currently displayed entry and the entry that it is flying to.
*
* The FMS must be programmed with contiguous entries, so clearing an entry at
* the end shortens the effective flight plan. There is a max of 100
* waypoints in the flight plan.
*
*/
/*
* XPLMCountFMSEntries
*
* This routine returns the number of entries in the FMS.
*
*/
XPLM_API int XPLMCountFMSEntries(void);
/*
* XPLMGetDisplayedFMSEntry
*
* This routine returns the index of the entry the pilot is viewing.
*
*/
XPLM_API int XPLMGetDisplayedFMSEntry(void);
/*
* XPLMGetDestinationFMSEntry
*
* This routine returns the index of the entry the FMS is flying to.
*
*/
XPLM_API int XPLMGetDestinationFMSEntry(void);
/*
* XPLMSetDisplayedFMSEntry
*
* This routine changes which entry the FMS is showing to the index specified.
* *
*/
XPLM_API void XPLMSetDisplayedFMSEntry(
int inIndex);
/*
* XPLMSetDestinationFMSEntry
*
* This routine changes which entry the FMS is flying the aircraft toward.
*
*/
XPLM_API void XPLMSetDestinationFMSEntry(
int inIndex);
/*
* XPLMGetFMSEntryInfo
*
* This routine returns information about a given FMS entry. A reference to a
* navaid can be returned allowing you to find additional information (such as
* a frequency, ILS heading, name, etc.). Some information is available
* immediately. For a lat/lon entry, the lat/lon is returned by this routine
* but the navaid cannot be looked up (and the reference will be
* XPLM_NAV_NOT_FOUND. FMS name entry buffers should be at least 256 chars in
* length.
*
*/
XPLM_API void XPLMGetFMSEntryInfo(
int inIndex,
XPLMNavType * outType, /* Can be NULL */
char * outID, /* Can be NULL */
XPLMNavRef * outRef, /* Can be NULL */
int * outAltitude, /* Can be NULL */
float * outLat, /* Can be NULL */
float * outLon); /* Can be NULL */
/*
* XPLMSetFMSEntryInfo
*
* This routine changes an entry in the FMS to have the destination navaid
* passed in and the altitude specified. Use this only for airports, fixes,
* and radio-beacon navaids. Currently of radio beacons, the FMS can only
* support VORs and NDBs. Use the routines below to clear or fly to a lat/lon.
*
*/
XPLM_API void XPLMSetFMSEntryInfo(
int inIndex,
XPLMNavRef inRef,
int inAltitude);
/*
* XPLMSetFMSEntryLatLon
*
* This routine changes the entry in the FMS to a lat/lon entry with the given
* coordinates.
*
*/
XPLM_API void XPLMSetFMSEntryLatLon(
int inIndex,
float inLat,
float inLon,
int inAltitude);
/*
* XPLMClearFMSEntry
*
* This routine clears the given entry, potentially shortening the flight
* plan.
*
*/
XPLM_API void XPLMClearFMSEntry(
int inIndex);
/***************************************************************************
* GPS RECEIVER
***************************************************************************/
/*
* These APIs let you read data from the GPS unit.
*
*/
/*
* XPLMGetGPSDestinationType
*
* This routine returns the type of the currently selected GPS destination,
* one of fix, airport, VOR or NDB.
*
*/
XPLM_API XPLMNavType XPLMGetGPSDestinationType(void);
/*
* XPLMGetGPSDestination
*
* This routine returns the current GPS destination.
*
*/
XPLM_API XPLMNavRef XPLMGetGPSDestination(void);
#ifdef __cplusplus
}
#endif
#endif
|
