Let me try to hijack this thread to ask a related question:
How do I get the altitude of the ground at a given location?
I have a simple little tool that prints the base path and index for a
given longitude and latitude pair. Is there a simgear function to load
the associated .btg.gz terrain file and find the elevation at the given
point? Or should I be looking at flightgear for an example? I'd like
to keep the program quick and simple... Ultimate goal is automated
object placement.
Or am I re-inventing a wheel here?
Thanks,
Ron
//g++ fgbucket.cpp -lsgbucket -lsgmisc -lsgprops -lsgstructure -lsgxml -lz -lsgdebug -ofgbucket
#include <simgear/compiler.h>
#include <simgear/bucket/newbucket.hxx>
#include <simgear/misc/sg_path.hxx>
#include <iostream>
#include SG_GLUT_H
#include <plib/ssg.h>
using std::cout;
using std::cerr;
using std::endl;
/*
#include <iostream>
#include <stdio.h>
*/
int main(int argc, char *argv[])
{
double dlong=-111.89195, dlat=40.77037;
if(argc!=3)
{
cerr<<"Usage:\n"<<argv[0]<<" latitude longitude\n";
exit(1);
}
dlong=strtod(argv[2], NULL);
dlat=strtod(argv[1], NULL);
SGBucket myBucket;
myBucket.set_bucket( dlong, dlat);
//cout<<myBucket<<'\n';
cout<<myBucket.gen_base_path()<<"/"<<myBucket.gen_index()<<".stg\n";
}
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