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IG::CIGI::Connector Class

Warning
The functionality described in this article is not available in the Community SDK edition.
You should upgrade to Sim SDK edition to use it.
Header: #include <UnigineCIGIConnector.h>

This class implements the connection between the IG Plugin and the CIGI protocol.

Notice
IG plugin must be loaded.

IG::CIGI::Connector Class

Enums

CIGI_MODE#

NameDescription
CIGI_MODE_STANDBY = 0Standby mode of the IG. This is the normal real-time operating mode for the IG. All packets issued by the Host will be processed by the IG. The IG should not perform diagnostics in this mode.
CIGI_MODE_OPERATE = 1Operate mode of the IG. This is the normal real-time operating mode for the IG. All packets issued by the Host will be processed by the IG. The IG should not perform diagnostics in this mode.
CIGI_MODE_DEBUG = 2Debug mode of the IG. This mode is similar to the Operate mode but provides data and/or error logging and other debugging features to aid integration or troubleshooting of the Host and IG interface. Because of the overhead of these debugging features, the IG may not always operate in a hard real-time fashion.
CIGI_MODE_OFFLINE = 3Offline Maintenance mode of the IG. In this mode, the IG ignores all data from the Host and sends only Start of Frame packets. This mode can be activated only from the IG. Because the IG Control packets from the Host are ignored by the IG, the IG must be placed into Reset/Standby mode before the Host can initiate further mode changes.

Members


int init ( int version, const char * host, int send, int recv, int size = 1432 ) #

Initializes the CIGI Connector using the given parameters.

Arguments

  • int version - CIGI protocol version. One of the CIGI_VERSION_* values.
  • const char * host - CIGI Host address.
  • int send - TCP port number to be used for sending packets to the CIGI Host.
  • int recv - TCP port number to be used for receiving packets from the CIGI Host.
  • int size - Packet size. The default value is 1432.

Return value

1 if the CIGI Connector was initialized successfully; otherwise, 0.

int shutdown ( ) #

Returns a value indicating if the CIGI Connector was shutdown successfully.

Return value

true if the CIGI Connector was shutdown successfully; otherwise, false.

bool isInitialized ( ) const#

Returns a value indicating if the CIGI Connector was initialized successfully.

Return value

true if the CIGI Connector was initialized successfully; otherwise, false.

void setIGMode ( CIGI::CIGI_MODE mode ) #

Sets the current IG mode.

Arguments

  • CIGI::CIGI_MODE mode - IG mode. One of the CIGI_MODE_* values.

CIGI::CIGI_MODE getIGMode ( ) const#

Returns the current IG mode.

Return value

IG mode. One of the CIGI_MODE_* values.

void setIGStatus ( int status ) #

Sets the current IG status.

Arguments

  • int status - IG status. The following values are supported:
    • 0 - normal
    • 1-255 - an error has occurred

int getIGStatus ( ) const#

Returns the current IG status.

Return value

IG status. The following values are supported:
  • 0 - normal
  • 1-255 - an error has occurred

void setSynchronous ( bool synchronous ) #

Sets a value indicating if synchronous operation mode is currently enabled (when disabled, asynchronous mode is used).

Arguments

  • bool synchronous - true to enable synchronous operation mode; false - to use asynchronous mode.

bool isSynchronous ( ) const#

Returns a value indicating if synchronous operation mode is currently enabled (when disabled, asynchronous mode is used).

Return value

true if synchronous operation mode is currently enabled; otherwise, false.

bool isInterpolation ( ) const#

Returns a value indicating if interpolation and extrapolation are enabled.

Return value

true if interpolation and extrapolation are enabled; otherwise, false.

unsigned int getIGFrame ( ) const#

Returns the number of the current frame for the IG.

Return value

Current IG frame number.

unsigned int getHostFrame ( ) const#

Returns the number of the current frame for the Host.

Return value

Current Host frame number.

double getTime ( ) const#

Returns the IG's simulation time.

Return value

IG's simulation time, in seconds.

double getLastReceivedHostTime ( ) const#

Returns the last received Host time (timestamp value in "IG Control").

Return value

Last received Host time, in seconds.

void * addOnConnectCallback ( Unigine::CallbackBase * func ) #

Adds a callback function to be fired when the Host has connected.

Arguments

Return value

ID of the last added connect callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeOnConnectCallback ( void * id ) #

Removes the specified callback from the list of Connect callbacks.

Arguments

  • void * id - Connect callback ID obtained when adding it.

Return value

True if the Connect callback with the given ID was removed successfully; otherwise false.

void * addOnReceivePacketCallback ( int cigi_opcode, Unigine::CallbackBase1 * func ) #

Sets a callback function to be fired when a packet of the specified type has been received from the Host.

Arguments

  • int cigi_opcode - CIGI data packet opcode. One of the CIGI_OPCODE_* values.
  • Unigine::CallbackBase1 * func - Callback pointer. The callback function must have the following signature:
    (Unigine::Plugins::IG::CIGI::CigiHostPacket *packet)

Return value

ID of the last added Receive Packet callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeOnReceivePacketCallback ( void * id ) #

Removes the specified callback from the list of Receive Packet callbacks.

Arguments

  • void * id - Receive Packet callback ID obtained when adding it.

Return value

true if the Receive Packet callback with the given ID was removed successfully; otherwise false.

void * addOnSendPacketCallback ( int cigi_opcode, Unigine::CallbackBase4 * func ) #

Sets a callback function to be fired right before sending a response to a request. This can be used to send additional data required by a host (e.g., velocities of the point of intersection for LOS/HAT queries which is useful in case of landing on a moving platform).

A callback function has the following signature:

(bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)

  • ret - boolean value indicating if the packet is to be sent or not;
  • response - the packet to be sent;
  • request - request for which a packet is to be sent as a response (can be nullptr);
  • intersection - additional info on intersection (if necessary).
Source code (C++)
void AppSystemLogic::init_cigi()
{
    int index = Engine::get()->findPlugin("CIGIConnector");
    // check CIGIConnector plugin load
    if (index < 0)
        return;
    // get CIGI interface
    cigi = IG::CIGI::Connector::get();
    
    cigi->addOnSendPacketCallback(Plugins::IG::CIGI::CIGI_OPCODE_LOS_EXT_RESPONSE, MakeCallback(this, &AppSystemLogic::on_los_ext_send));
    cigi->addOnSendPacketCallback(Plugins::IG::CIGI::CIGI_OPCODE_LOS_RESPONSE, MakeCallback(this, &AppSystemLogic::on_los_ext_send));
}
void AppSystemLogic::on_los_ext_send(bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)
{
    ret = false;
    Log::message("reject packet %d\n", response->getType());
    if (request)
        Log::message("request was %d\n", request->getType());
    if (intersection)
    {
        Log::message("intersection was\n");
        if (intersection->object)
            Log::message("intersection object %s\n", intersection->object->getName());
    }
}

Arguments

  • int cigi_opcode - CIGI data packet opcode. One of the CIGI_OPCODE_* values.
  • Unigine::CallbackBase4 * func - Callback pointer. The callback function must have the following signature:
    (bool &ret, IG::CIGI::CigiIGPacket *response, IG::CIGI::CigiHostPacket *request, IG::IGIntersection *intersection)

Return value

ID of the last added Send Packet callback, if the callback was added successfully; otherwise, nullptr. This ID can be used to remove this callback when necessary.

bool removeOnSendPacketCallback ( void * id ) #

Removes the specified callback from the list of Send Packet callbacks.

Arguments

  • void * id - Send Packet callback ID obtained when adding it.

Return value

True if the Send Packet callback with the given ID was removed successfully; otherwise false.

int getNumHostPackets ( ) #

Returns the total number of packets received from the Host.

Return value

Total number of packets received from the Host.

CigiHostPacket * getHostPacket ( int num ) #

Returns the specified CIGI Host packet.

Arguments

  • int num - ID of the Host packet.

Return value

CIGI Host packet.

CigiIGPacket * createIGPacket ( int ig_opcode ) #

Creates IG Packet to be sent to the Host.

Arguments

Return value

IG Packet to be sent to the Host.

void addIGPacket ( CigiIGPacket * packet ) #

Sends the specified IG packet to the Host.

Arguments

void setProcessPacket ( int op_code, bool enabled ) #

Sets a value indicating if the specified IG packets received are to be processed or skipped.

Arguments

  • int op_code - IG opcode, one of CIGI_OPCODE_* values.
  • bool enabled - true to process packets of the specified type, false to skip them.

void showDebug ( ) #

Displays the debug information.

void setWeatherLayerType ( int id, const CigiWeatherLayerType& type ) #

Arguments

  • int id - Weather layer ID.
  • const CigiWeatherLayerType& type - Weather layer type, one of the following values:
    • Plugins::IG::WeatherLayerType::LAYER_BASE - base layer.
    • Plugins::IG::WeatherLayerType::LAYER_CLOUD - cloud layer.
    • Plugins::IG::WeatherLayerType::LAYER_PRECIPITATION - precipitation layer.

const CigiWeatherLayerType & getWeatherLayerType ( int id ) const#

Arguments

  • int id - Weather layer ID.

Return value

Weather layer type, one of the following values:
  • Plugins::IG::WeatherLayerType::LAYER_BASE - base layer.
  • Plugins::IG::WeatherLayerType::LAYER_CLOUD - cloud layer.
  • Plugins::IG::WeatherLayerType::LAYER_PRECIPITATION - precipitation layer.
Last update: 2022-04-20
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