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Load pattern file from FG_HOME/antennas

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This commit is contained in:
adrian 2011-12-04 11:28:59 +02:00
parent 693f868930
commit 6d816823db
2 changed files with 31 additions and 7 deletions
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30
src/Radio/antenna.cxx
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@ -22,18 +22,20 @@
#endif #endif
#include <math.h> #include <math.h>
#include <iostream>
#include <stdlib.h> #include <stdlib.h>
#include <fstream>
#include <Scenery/scenery.hxx> #include <Scenery/scenery.hxx>
#include "antenna.hxx" #include "antenna.hxx"
using namespace std;
FGRadioAntenna::FGRadioAntenna() { FGRadioAntenna::FGRadioAntenna(string type) {
_mirror_y = 1; _mirror_y = 1;
_mirror_z = 1; _mirror_z = 1;
_invert_ground = 0; _invert_ground = 0;
load_antenna_pattern(type);
} }
FGRadioAntenna::~FGRadioAntenna() { FGRadioAntenna::~FGRadioAntenna() {
@ -48,6 +50,26 @@ double FGRadioAntenna::calculate_gain(double azimuth, double elevation) {
/*** load external plot file generated by NEC4 /*** load external plot file generated by NEC4
***/ ***/
void FGRadioAntenna::load_antenna_pattern() { void FGRadioAntenna::load_antenna_pattern(string type) {
SGPath pattern_file(fgGetString("/sim/fg-home"));
pattern_file.append("antennas");
pattern_file.append(type + ".txt");
if (!pattern_file.exists()) {
return;
}
ifstream file_in(pattern_file.c_str());
int heading, elevation;
double gain;
while(!file_in.eof()) {
file_in >> heading >> elevation >> gain;
cerr << "head: " << heading << " elev: " << elevation << " gain: " << gain << endl;
AntennaGain datapoint;
datapoint.azimuth = heading;
datapoint.elevation = elevation;
datapoint.gain = gain;
_pattern.push_back(datapoint);
}
} }

8
src/Radio/antenna.hxx
View file

@ -27,10 +27,12 @@
#include <simgear/math/sg_geodesy.hxx> #include <simgear/math/sg_geodesy.hxx>
#include <simgear/debug/logstream.hxx> #include <simgear/debug/logstream.hxx>
using std::string;
class FGRadioAntenna class FGRadioAntenna
{ {
private: private:
void load_antenna_pattern(); void load_antenna_pattern(string type);
int _mirror_y; int _mirror_y;
int _mirror_z; int _mirror_z;
int _invert_ground; int _invert_ground;
@ -41,13 +43,13 @@ private:
double elevation; double elevation;
double gain; double gain;
}; };
SGPath _pattern_file;
typedef std::vector<AntennaGain> AntennaPattern; typedef std::vector<AntennaGain> AntennaPattern;
AntennaPattern _pattern; AntennaPattern _pattern;
public: public:
FGRadioAntenna(); FGRadioAntenna(string type);
~FGRadioAntenna(); ~FGRadioAntenna();
double calculate_gain(double azimuth, double elevation); double calculate_gain(double azimuth, double elevation);