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Viewing changes to src/ATC/ATCProjection.cxx

  • Committer: Bazaar Package Importer
  • Author(s): Daniel T Chen
  • Date: 2006-01-05 12:48:11 UTC
  • mfrom: (1.1.4 upstream)
  • Revision ID: james.westby@ubuntu.com-20060105124811-xsr6rtcrb88w19c8
Tags: 0.9.9-1ubuntu1
Resynchronise with Debian.

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src/ATC/ATCProjection.cxx
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    correction_factor = cos(origin.lat() * DCL_DEGREES_TO_RADIANS);
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}
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FGATCProjection::FGATCProjection(const Point3D& centre) {
 
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    origin = centre;
 
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    correction_factor = cos(origin.lat() * DCL_DEGREES_TO_RADIANS);
 
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}
 
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FGATCProjection::~FGATCProjection() {
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}
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void FGATCProjection::Init(Point3D centre) {
 
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void FGATCProjection::Init(const Point3D& centre) {
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    origin = centre;
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    correction_factor = cos(origin.lat() * DCL_DEGREES_TO_RADIANS);
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}
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Point3D FGATCProjection::ConvertToLocal(Point3D pt) {
 
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Point3D FGATCProjection::ConvertToLocal(const Point3D& pt) {
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    double delta_lat = pt.lat() - origin.lat();
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    double delta_lon = pt.lon() - origin.lon();
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    return(Point3D(x,y,0.0));
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}
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Point3D FGATCProjection::ConvertFromLocal(Point3D pt) {
 
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Point3D FGATCProjection::ConvertFromLocal(const Point3D& pt) {
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        double delta_lat = asin(pt.y() / SG_EQUATORIAL_RADIUS_M) * DCL_RADIANS_TO_DEGREES;
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        double delta_lon = (asin(pt.x() / SG_EQUATORIAL_RADIUS_M) * DCL_RADIANS_TO_DEGREES) / correction_factor;
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FGATCAlignedProjection::~FGATCAlignedProjection() {
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}
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void FGATCAlignedProjection::Init(Point3D centre, double heading) {
 
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void FGATCAlignedProjection::Init(const Point3D& centre, double heading) {
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    origin = centre;
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    theta = heading * DCL_DEGREES_TO_RADIANS;
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    correction_factor = cos(origin.lat() * DCL_DEGREES_TO_RADIANS);
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}
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Point3D FGATCAlignedProjection::ConvertToLocal(Point3D pt) {
 
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Point3D FGATCAlignedProjection::ConvertToLocal(const Point3D& pt) {
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    // convert from lat/lon to orthogonal
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    double delta_lat = pt.lat() - origin.lat();
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    double delta_lon = pt.lon() - origin.lon();
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    return(Point3D(x,y,pt.elev()));
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}
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Point3D FGATCAlignedProjection::ConvertFromLocal(Point3D pt) {
 
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Point3D FGATCAlignedProjection::ConvertFromLocal(const Point3D& pt) {
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        //cout << "theta = " << theta << '\n';
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        //cout << "origin = " << origin << '\n';
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    // de-align