Kstars
projector.h
135 QPointF toScreen(const SkyPoint *o, bool oRefract = true, bool *onVisibleHemisphere = nullptr) const;
145 virtual SkyPoint fromScreen(const QPointF &p, dms *LST, const dms *lat, bool onlyAltAz = false) const;
253 virtual QVector<Eigen::Vector2f> groundPoly(SkyPoint *labelpoint = nullptr, bool *drawLabel = nullptr) const;
319 m_vp.width / 2 - m_vp.zoomFactor * (x * sgn * m_vp.rotationAngle.cos() - y * m_vp.rotationAngle.sin()),
The Projector class is the primary class that serves as an interface to handle projections.
Definition projector.h:58
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
Provides all necessary information about an object in the sky: its coordinates, name(s),...
Definition skyobject.h:42
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
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Documentation copyright © 1996-2024 The KDE developers.
Generated on Fri Nov 22 2024 12:11:15 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.