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#ifndef ANTENNAINFO_H
#define ANTENNAINFO_H
#include <string>
#include <sstream>
#include <cmath>
#include <cstdlib>
#include <vector>
#include "types.h"
#include "../util/serializable.h"
class EarthPosition {
public:
EarthPosition() : x(0.0), y(0.0), z(0.0) { }
double x, y, z;
std::string ToString() {
std::stringstream s;
s.setf(std::ios::fixed,std::ios::floatfield);
s.width(16);
s.precision(16);
s << x << "," << y << "," << z << " (alt " << sqrtl(x*x+y*y+z*z) << "), or "
<< "N" << Latitude()*180/M_PI << " E" << Longitude()*180/M_PI;
return s.str();
}
EarthPosition FromITRS(long double x, long double y, long double z);
double Longitude() const
{
return atan2l(y, x);
}
long double LongitudeL() const
{
return atan2l(y, x);
}
double Latitude() const
{
return atan2l(z, sqrtl((long double) x*x + y*y));
}
long double LatitudeL() const
{
return atan2l(z, sqrtl((long double) x*x + y*y));
}
double Altitude() const
{
return sqrtl((long double) x*x+y*y+z*z);
}
double AltitudeL() const
{
return sqrtl((long double) x*x+y*y+z*z);
}
void Serialize(std::ostream &stream) const
{
Serializable::SerializeToDouble(stream, x);
Serializable::SerializeToDouble(stream, y);
Serializable::SerializeToDouble(stream, z);
}
void Unserialize(std::istream &stream)
{
x = Serializable::UnserializeDouble(stream);
y = Serializable::UnserializeDouble(stream);
z = Serializable::UnserializeDouble(stream);
}
double Distance(const EarthPosition& other) const
{
return sqrt(DistanceSquared(other));
}
double DistanceSquared(const EarthPosition& other) const
{
double dx = x-other.x, dy = y-other.y, dz = z-other.z;
return dx*dx + dy*dy + dz*dz;
}
};
class UVW {
public:
UVW() : u(0.0), v(0.0), w(0.0) { }
UVW(num_t _u, num_t _v, num_t _w) : u(_u), v(_v), w(_w) { }
num_t u, v, w;
};
class AntennaInfo {
public:
AntennaInfo() { }
AntennaInfo(const AntennaInfo &source)
: id(source.id), position(source.position), name(source.name), diameter(source.diameter), mount(source.mount), station(source.station)
{
}
void operator=(const AntennaInfo &source)
{
id = source.id;
position = source.position;
name = source.name;
diameter = source.diameter;
mount = source.mount;
station = source.station;
}
unsigned id;
EarthPosition position;
std::string name;
double diameter;
std::string mount;
std::string station;
void Serialize(std::ostream &stream) const
{
Serializable::SerializeToUInt32(stream, id);
position.Serialize(stream);
Serializable::SerializeToString(stream, name);
Serializable::SerializeToDouble(stream, diameter);
Serializable::SerializeToString(stream, mount);
Serializable::SerializeToString(stream, station);
}
void Unserialize(std::istream &stream)
{
id = Serializable::UnserializeUInt32(stream);
position.Unserialize(stream);
Serializable::UnserializeString(stream, name);
diameter = Serializable::UnserializeDouble(stream);
Serializable::UnserializeString(stream, mount);
Serializable::UnserializeString(stream, station);
}
};
class ChannelInfo {
public:
unsigned frequencyIndex;
double frequencyHz;
double channelWidthHz;
double effectiveBandWidthHz;
double resolutionHz;
double MetersToLambda(double meters) const
{
return meters * frequencyHz / 299792458.0L;
}
void Serialize(std::ostream &stream) const
{
Serializable::SerializeToUInt32(stream, frequencyIndex);
Serializable::SerializeToDouble(stream, frequencyHz);
Serializable::SerializeToDouble(stream, channelWidthHz);
Serializable::SerializeToDouble(stream, effectiveBandWidthHz);
Serializable::SerializeToDouble(stream, resolutionHz);
}
void Unserialize(std::istream &stream)
{
frequencyIndex = Serializable::UnserializeUInt32(stream);
frequencyHz = Serializable::UnserializeDouble(stream);
channelWidthHz = Serializable::UnserializeDouble(stream);
effectiveBandWidthHz = Serializable::UnserializeDouble(stream);
resolutionHz = Serializable::UnserializeDouble(stream);
}
};
class BandInfo {
public:
unsigned windowIndex;
std::vector<ChannelInfo> channels;
BandInfo() : windowIndex(0) { }
BandInfo(const BandInfo &source) :
windowIndex(source.windowIndex),
channels(source.channels)
{
}
void operator=(const BandInfo &source)
{
windowIndex = source.windowIndex;
channels = source.channels;
}
num_t CenterFrequencyHz() const
{
num_t total = 0.0;
for(std::vector<ChannelInfo>::const_iterator i=channels.begin();i!=channels.end();++i)
total += i->frequencyHz;
return total / channels.size();
}
void Serialize(std::ostream &stream) const
{
Serializable::SerializeToUInt32(stream, windowIndex);
Serializable::SerializeToUInt32(stream, channels.size());
for(std::vector<ChannelInfo>::const_iterator i=channels.begin();i!=channels.end();++i)
i->Serialize(stream);
}
void Unserialize(std::istream &stream)
{
windowIndex = Serializable::UnserializeUInt32(stream);
size_t channelCount = Serializable::UnserializeUInt32(stream);
channels.resize(channelCount);
for(size_t i=0;i<channelCount;++i)
channels[i].Unserialize(stream);
}
};
class FieldInfo {
public:
FieldInfo() { }
FieldInfo(const FieldInfo &source) :
fieldId(source.fieldId),
delayDirectionRA(source.delayDirectionRA),
delayDirectionDec(source.delayDirectionDec),
name(source.name)
{ }
FieldInfo &operator=(const FieldInfo &source)
{
fieldId = source.fieldId;
delayDirectionRA = source.delayDirectionRA;
delayDirectionDec = source.delayDirectionDec;
name = source.name;
return *this;
}
unsigned fieldId;
num_t delayDirectionRA;
num_t delayDirectionDec;
//num_t delayDirectionDecNegSin;
//num_t delayDirectionDecNegCos;
std::string name;
};
class Baseline {
public:
EarthPosition antenna1, antenna2;
Baseline()
: antenna1(), antenna2() { }
Baseline(const AntennaInfo &_antenna1, const AntennaInfo &_antenna2)
: antenna1(_antenna1.position), antenna2(_antenna2.position) { }
Baseline(EarthPosition _antenna1, EarthPosition _antenna2)
: antenna1(_antenna1), antenna2(_antenna2) { }
num_t Distance() const {
num_t dx = antenna1.x-antenna2.x;
num_t dy = antenna1.y-antenna2.y;
num_t dz = antenna1.z-antenna2.z;
return sqrtn(dx*dx+dy*dy+dz*dz);
}
num_t Angle() const {
num_t dz = antenna1.z-antenna2.z;
// baseline is either orthogonal to the earths axis, or
// the length of the baseline is zero.
if(dz == 0.0) return 0.0;
num_t transf = 1.0/(antenna1.z-antenna2.z);
num_t dx = (antenna1.x-antenna2.x)*transf;
num_t dy = (antenna1.y-antenna2.y)*transf;
num_t length = sqrtn(dx*dx + dy*dy + 1.0);
return acosn(1.0/length);
}
num_t DeltaX() const { return antenna2.x-antenna1.x; }
num_t DeltaY() const { return antenna2.y-antenna1.y; }
num_t DeltaZ() const { return antenna2.z-antenna1.z; }
};
class Frequency {
public:
static std::string ToString(num_t value)
{
std::stringstream s;
if(fabs(value) >= 1000000000.0L)
s << round(value/10000000.0L)/100.0L << " GHz";
else if(fabs(value) >= 1000000.0L)
s << round(value/10000.0L)/100.0L << " MHz";
else if(fabs(value) >= 1000.0L)
s << round(value/10.0L)/100.0L << " KHz";
else
s << value << " Hz";
return s.str();
}
};
class RightAscension {
public:
static std::string ToString(numl_t value)
{
value = fmod(value, 2.0*M_PInl);
if(value < 0.0) value += 2.0*M_PInl;
std::stringstream s;
s << (int) floorn(value*12.0/M_PInl) << ':';
int d2 = (int) floornl(fmodnl(value*12.0*60.0/M_PInl, 60.0));
if(d2 < 10) s << '0';
s << d2 << ':';
numl_t d3 = fmodnl(value*12.0*60.0*60.0/M_PInl, 60.0);
if(d3 < 10.0) s << '0';
s << d3;
return s.str();
}
};
class Declination {
public:
static std::string ToString(numl_t value)
{
value = fmod(value, 2.0*M_PInl);
if(value < 0.0) value += 2.0*M_PInl;
if(value > M_PInl*0.5) value = M_PInl - value;
std::stringstream s;
if(value > 0.0)
s << '+';
else
s << '-';
value = fabsnl(value);
s << (int) floornl(value*180.0/M_PIn) << '.';
int d2 = (int) fmodnl(value*180.0*60.0/M_PIn, 60.0);
if(d2 < 10) s << '0';
s << d2 << '.';
numl_t d3 = fmodnl(value*180.0*60.0*60.0/M_PIn, 60.0);
if(d3 < 10.0) s << '0';
s << d3;
return s.str();
}
};
class Angle {
public:
static std::string ToString(numl_t valueRad)
{
std::stringstream s;
numl_t deg = valueRad * 180.0/M_PI;
if(std::abs(deg) > 3)
s << deg << " deg";
else if(std::abs(deg) > 3.0/60.0)
s << (deg / 60.0) << " arcmin";
else
s << (deg / 3600.0) << " arcsec";
return s.str();
}
};
#endif
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