Kstars
projector.cpp
69 m_fov = sqrt(m_vp.width * m_vp.width + m_vp.height * m_vp.height) / (2 * m_vp.zoomFactor * dms::DegToRad);
319 SkyLabeler::Instance()->getMargins(horizonLabel, &marginLeft, &marginRight, &marginTop, &marginBot);
401 atan2(-1. * (ground.last().y() - 0.5 * m_vp.height), ground.last().x() - 0.5 * m_vp.width) / dms::DegToRad;
517Eigen::Vector2f Projector::toScreenVec(const SkyPoint *o, bool oRefract, bool *onVisibleHemisphere) const
547 qDebug() << Q_FUNC_INFO << "Point supplied has RA0 = " << o->ra0().toHMSString() << " Dec0 = " << o->dec0().toDMSString() << "; alt = " << o->alt().toDMSString() << "; az = " << o->az().toDMSString();
549 qDebug() << Q_FUNC_INFO << "Point is object with name = " << obj->name() << " longname = " << obj->longname();
580 cosMaxFieldAngle()); // TODO: Isn't it more efficient to bypass the final calculation below if the object is not visible?
Eigen::Vector2f derst(double x, double y) const
Transform screen (x, y) to projector (x, y) accounting for scale, rotation.
Definition projector.h:336
virtual double cosMaxFieldAngle() const
This function returns the cosine of the maximum field angle, i.e., the maximum angular distance from ...
Definition projector.h:299
virtual SkyPoint fromScreen(const QPointF &p, dms *LST, const dms *lat, bool onlyAltAz=false) const
Determine RA, Dec coordinates of the pixel at (dx, dy), which are the screen pixel coordinate offsets...
Definition projector.cpp:460
QPointF toScreen(const SkyPoint *o, bool oRefract=true, bool *onVisibleHemisphere=nullptr) const
This is exactly the same as toScreenVec but it returns a QPointF.
Definition projector.cpp:93
Eigen::Vector2f rst(double x, double y) const
Transform proj (x, y) to screen (x, y) accounting for scale and rotation.
Definition projector.h:314
virtual double projectionK(double x) const
This function handles some of the projection-specific code.
Definition projector.h:280
double findZenithPA(const SkyPoint *o, float x, float y) const
Determine the on-screen angle of a SkyPoint with respect to Zenith.
Definition projector.cpp:276
double findPA(const SkyObject *o, float x, float y) const
Determine the on-screen position angle of a SkyObject.
Definition projector.cpp:271
virtual bool unusablePoint(const QPointF &p) const
Check if the current point on screen is a valid point on the sky.
Definition projector.cpp:440
bool onScreen(const QPointF &p) const
Check whether the projected point is on-screen.
Definition projector.cpp:98
virtual Eigen::Vector2f toScreenVec(const SkyPoint *o, bool oRefract=true, bool *onVisibleHemisphere=nullptr) const
Given the coordinates of the SkyPoint argument, determine the pixel coordinates in the SkyMap.
Definition projector.cpp:517
Eigen::Vector2f clipLineVec(SkyPoint *p1, SkyPoint *p2) const
ASSUMES *p1 did not clip but *p2 did.
Definition projector.cpp:113
double findNorthPA(const SkyPoint *o, float x, float y) const
Determine the on-screen position angle of a SkyPont with recept with NCP.
Definition projector.cpp:236
void setViewParams(const ViewParams &p)
Update cached values for projector.
Definition projector.cpp:46
bool checkVisibility(const SkyPoint *p) const
Determine if the skypoint p is likely to be visible in the display window.
Definition projector.cpp:183
virtual QVector< Eigen::Vector2f > groundPoly(SkyPoint *labelpoint=nullptr, bool *drawLabel=nullptr) const
Get the ground polygon.
Definition projector.cpp:313
virtual double projectionL(double x) const
This function handles some of the projection-specific code.
Definition projector.h:289
virtual double radius() const
Get the radius of this projection's sky circle.
Definition projector.h:271
QPointF clipLine(SkyPoint *p1, SkyPoint *p2) const
ASSUMES *p1 did not clip but *p2 did.
Definition projector.cpp:108
virtual void updateClipPoly()
updateClipPoly calculate the clipping polygen given the current FOV.
Definition projector.cpp:417
void getMargins(const QString &text, float *left, float *right, float *top, float *bot)
sets four margins for help in keeping labels entirely on the screen.
Definition skylabeler.cpp:227
Provides all necessary information about an object in the sky: its coordinates, name(s),...
Definition skyobject.h:42
static double refract(const double alt, bool conditional=true)
Apply refraction correction to altitude, depending on conditional.
Definition skypoint.cpp:1070
static const double altCrit
Critical height for atmospheric refraction corrections.
Definition skypoint.h:727
static double unrefract(const double alt, bool conditional=true)
Remove refraction correction, depending on conditional.
Definition skypoint.cpp:1091
This is just a container that holds information needed to do projections.
Definition projector.h:37
bool fillGround
If the ground is filled, then points below horizon are invisible.
Definition projector.h:44
static constexpr double PI
PI is a const static member; it's public so that it can be used anywhere, as long as dms....
Definition dms.h:385
static constexpr double DegToRad
DegToRad is a const static member equal to the number of radians in one degree (dms::PI/180....
Definition dms.h:390
QString i18n(const char *text, const TYPE &arg...)
void append(QList< T > &&value)
iterator begin()
void clear()
iterator end()
T & first()
T & last()
qreal x() const const
qreal y() const const
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Documentation copyright © 1996-2024 The KDE developers.
Generated on Fri Dec 6 2024 12:09:53 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.