Hello Jakob,Thanks for replying, i tried what you suggested but it didn't work
out still same error.
Error: tcpip::Storage::readIsSafe: want to read 823066624 bytes from Storage,
but only 21 remaining Quitting (on error).
I will paste my entire in function, in case i am doing something stupid ,please
take a look!
TraCITestClient::Position TraCITestClient::getPosition()
{
send_commandGetVariable(0xa4, 0x42, "veh1");//first i got XY coordinates
tcpip::Storage inMsg;
try {
std::string acknowledgement;
check_resultState(inMsg, 0xa4, false, &acknowledgement);
} catch (tcpip::SocketException& e) {
pos.x = -1;
pos.y = -1;
return pos;
}
check_commandGetResult(inMsg, 0xa4, -1, false);
// report result state
try {
int variableID = inMsg.readUnsignedByte();
std::string objectID = inMsg.readString();
int valueDataType = inMsg.readUnsignedByte();
pos.x = inMsg.readDouble();
pos.y = inMsg.readDouble();
} catch (tcpip::SocketException& e) {
std::stringstream msg;
msg << "Error while receiving command: " << e.what();
errorMsg(msg);
pos.x = -1;
pos.y = -1;
return pos;
}
//till here i am getting correct value in pos.x and pos.y
// now i want to convert these XY coordinates to actual Lat Long
tcpip::Storage* tmp = new tcpip::Storage;
tmp->writeByte(TYPE_COMPOUND);
tmp->writeInt(2);
tmp->writeByte(POSITION_2D);// as suggested added this line
tmp->writeDouble(pos.x);
tmp->writeDouble(pos.y);
tmp->writeByte(TYPE_UBYTE);
tmp->writeUnsignedByte(POSITION_LON_LAT);
send_commandGetVariable(0x82, 0x58, "veh1",tmp); //**here i am getting error**
tcpip::Storage inMsgX;
try {
std::string acknowledgement;
check_resultState(inMsgX, 0x82, false, &acknowledgement);
} catch (tcpip::SocketException& e) {
return pos;
}
check_commandGetResult(inMsgX, 0x82, -1, false);
// report result state
try {
int variableID = inMsgX.readUnsignedByte();
std::string objectID = inMsgX.readString();
int valueDataType = inMsgX.readUnsignedByte();
pos.x = inMsgX.readDouble();
pos.y = inMsgX.readDouble();
} catch (tcpip::SocketException& e) {
std::stringstream msg;
msg << "Error while receiving command: " << e.what();
errorMsg(msg);
return pos;
}
return pos;
}what could be the error, are those command Id's correct?
On Wednesday, 7 December 2016 2:28 PM, Jakob Erdmann
<[email protected]> wrote:
Hello,
you need to specify the source position type
tmp->writeByte(POSITION_2D)
before sending x and y
regards,
Jakob
From: Wasim Ahmed <[email protected]>
To: "[email protected]" <[email protected]>
Cc:
Date: Tue, 6 Dec 2016 12:52:27 +0000 (UTC)
Subject: Fw: SUMO-TRACI-QUERY [Converting XY Coordinates to Lat/Long]
Hello, I wanted to convert the retrieved XY coordinates to Latitude and
Longitude. I saw the command to do so is 0x82 and 0x58 in documentation
[http://www.sumo.dlr.de/wiki/ TraCI/Simulation_Value_ Retrieval#Command_0x82:_
Position_Conversion]. I have valid XY Coordinates in pos.x and pos.y. So in
order to convert my XY Coordinates to Lat/Long . I am using following command.
Don’t know what’s wrong with it: tcpip::Storage*tmp = new tcpip::Storage;
tmp->writeByte(TYPE_COMPOUND); tmp->writeInt(2); tmp->writeDouble(pos.x);
tmp->writeDouble(pos.y); tmp->writeByte(TYPE_UBYTE); tmp->writeUnsignedByte(
POSITION_LON_LAT); send_commandGetVariable(0x82, 0x58,“veh1”,tmp); I
debugged the code and error is coming in “send_commandGetVariable(0x82,
0x58,“veh1”,tmp);” function. Getting following error on SUMO-GUI Server:
Error: tcpip::Storage::readIsSafe: want to read 823066624 bytes from Storage,
but only 20 remaining Quitting (on error). Any Help!! ThanksJ
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