[Flightgear-devel] Trying to build an interface to flightgear
I am trying to build an interface to FlightGear for UAV simulation.
Here is the basic idea: construct a piece of software which reads
properties from FlightGear via UDP or Serial, and sends control
commands to FlightGear via UDP or serial.
I found the Atlas project which does part of what I am trying to do,
so I am building my code based on the Atlas code.
I am having trouble using the simgear socket libraries however. When I
build my file, I get the following errors:
softSim.cpp:(.text+0x4f1): undefined reference to
`SGSocket::SGSocket(std::basic_stringchar, std::char_traitschar,
std::allocatorchar const, std::basic_stringchar,
std::char_traitschar, std::allocatorchar const,
std::basic_stringchar, std::char_traitschar, std::allocatorchar
const)'
softSim.cpp:(.text+0x66c): undefined reference to
`SGSerial::SGSerial(std::basic_stringchar, std::char_traitschar,
std::allocatorchar const, std::basic_stringchar,
std::char_traitschar, std::allocatorchar const)'
softSim.cpp:(.text+0x7d7): undefined reference to
`SGSocket::SGSocket(std::basic_stringchar, std::char_traitschar,
std::allocatorchar const, std::basic_stringchar,
std::char_traitschar, std::allocatorchar const,
std::basic_stringchar, std::char_traitschar, std::allocatorchar
const)'
I have simgear 1.0.0 installed.
I am using ubuntu 8.04
Simgear is installed in: /usr/local/include/simgear/
This is the build command in Geany: g++ -Wall %f -lglut
Here are what I believe to be the relevant excerpts from my code:
Include statements and SGIOChannel initialization:
#include memory.h
#include stdio.h
#include simgear/compiler.h
#include SG_GLUT_H
#include plib/fnt.h
#include plib/pu.h
#include string
#include simgear/io/sg_socket.hxx
#include simgear/io/sg_serial.hxx
SGIOChannel *input_channel;
this is the offending code inside the main function:
if (slaved) {
glutTimerFunc( (int)(1000.0f/update), timer, 0 );
if ( network ) {
input_channel = new SGSocket( , port, udp );
} else if ( serial ) {
input_channel = new SGSerial( device, baud );
} else {
printf(unknown input, defaulting to network on port 5500\n);
input_channel = new SGSocket( , 5500, udp );
}
input_channel-open( SG_IO_IN );
}
Please help me resolve these errors. Also if you think I am on the
wrong track for what I am trying to accomplish, please let me know.
Thanks,
Cory
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Re: [Flightgear-devel] Trying to build an interface to flightgear
On Thu, May 29, 2008 at 9:01 PM, cory barton [EMAIL PROTECTED] wrote: I am having trouble using the simgear socket libraries however. ... This is the build command in Geany: g++ -Wall %f -lglut Well, apparently you are not *using* the simgear libs ... you need to link them into your program, such as by adding something like -lsgserial -lsgio and any other libs these might depend on. -- Csaba/Jester - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] John Wojnaroski - 747 help please
Gijs de Rooy wrote: Hello John, Thanks to Georg Vollnhals I found your emailadres, but becayse I didn't get an answer I try to reach you through the mailinglist. Sorry, I did not see your earlier post. Possible my spam filters may have blocked it. ATM, I'm very busy getting some software ready for delivery on a NASA project. But I will try to answer some of your questions this weekend. If you wish , you may try and post your private email address again to my private email otherwise I'll probably reply on the FG mailing list Regards John - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Trying to build an interface to flightgear
Thanks for the tip. You were right, I was not using the simgear libs. I have had some improvement after adding more libraries to the build command. Here is the current statement, and the errors I am getting: g++ -Wall softSim.cpp -lglut -lsgio -lsgserial -lsgdebug -lplibnet -o softSim (in directory: /home/cory/trunk/softSim) /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libplibnet.so: undefined reference to `ulSetError(ulSeverity, char const*, ...)' /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libplibnet.so: undefined reference to `ulSetError(ulSeverity, char const*, ...)' Compilation failed. I tried adding -lplibfnt but that makes no difference, and if I add -lplibpu then I get a lot more undefined reference errors. I am kind of lost here, and do not know how to troubleshoot further, when I google undefined reference to `ulSetError(ulSeverity, char const*, ...) or the other undefined reference errors, I end up finding posts on this list, usually about trouble building flightgear. If you have any more nuggets of wisdom, please let me know, I am gonna sleep on it, then keep poking at it in the morning. Thanks, Cory On Thu, May 29, 2008 at 5:10 PM, Csaba Halász [EMAIL PROTECTED] wrote: On Thu, May 29, 2008 at 9:01 PM, cory barton [EMAIL PROTECTED] wrote: I am having trouble using the simgear socket libraries however. ... This is the build command in Geany: g++ -Wall %f -lglut Well, apparently you are not *using* the simgear libs ... you need to link them into your program, such as by adding something like -lsgserial -lsgio and any other libs these might depend on. -- Csaba/Jester - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
