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| SphMap (std::string const &options="") |
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virtual | ~SphMap () |
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| SphMap (SphMap const &)=default |
| Copy constructor: make a deep copy. More...
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| SphMap (SphMap &&)=default |
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SphMap & | operator= (SphMap const &)=delete |
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SphMap & | operator= (SphMap &&)=default |
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std::shared_ptr< SphMap > | copy () const |
| Return a deep copy of this object. More...
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bool | getUnitRadius () const |
| Get UnitRadius: input vectors lie on a unit sphere? More...
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double | getPolarLong () const |
| Get PolarLong: the longitude value to assign to either pole (radians). More...
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virtual | ~Mapping () |
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| Mapping (Mapping const &)=default |
| Copy constructor: make a deep copy. More...
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| Mapping (Mapping &&)=default |
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Mapping & | operator= (Mapping const &)=delete |
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Mapping & | operator= (Mapping &&)=default |
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std::shared_ptr< Mapping > | copy () const |
| Return a deep copy of this object. More...
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int | getNIn () const |
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int | getNOut () const |
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bool | getIsSimple () const |
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bool | isInverted () const |
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bool | getIsLinear () const |
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bool | getReport () const |
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bool | hasForward () const |
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bool | hasInverse () const |
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std::shared_ptr< Mapping > | inverted () const |
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Array2D | linearApprox (PointD const &lbnd, PointD const &ubnd, double tol) const |
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SeriesMap | then (Mapping const &next) const |
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ParallelMap | under (Mapping const &next) const |
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double | rate (PointD const &at, int ax1, int ax2) const |
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void | setReport (bool report) |
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std::shared_ptr< Mapping > | simplified () const |
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void | applyForward (ConstArray2D const &from, Array2D const &to) const |
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Array2D | applyForward (ConstArray2D const &from) const |
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std::vector< double > | applyForward (std::vector< double > const &from) const |
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void | applyInverse (ConstArray2D const &from, Array2D const &to) const |
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Array2D | applyInverse (ConstArray2D const &from) const |
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std::vector< double > | applyInverse (std::vector< double > const &from) const |
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void | tranGridForward (PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, Array2D const &to) const |
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Array2D | tranGridForward (PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, int nPts) const |
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void | tranGridInverse (PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, Array2D const &to) const |
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Array2D | tranGridInverse (PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, int nPts) const |
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virtual | ~Object () |
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| Object (Object const &object) |
| Copy constructor: make a deep copy. More...
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| Object (Object &&)=default |
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Object & | operator= (Object const &)=delete |
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Object & | operator= (Object &&)=default |
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bool | operator== (Object const &rhs) const |
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bool | operator!= (Object const &rhs) const |
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std::shared_ptr< Object > | copy () const |
| Return a deep copy of this object. More...
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void | clear (std::string const &attrib) |
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bool | hasAttribute (std::string const &attrib) const |
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std::string | getClassName () const |
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std::string | getID () const |
| Get ID: object identification string that is not copied. More...
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std::string | getIdent () const |
| Get Ident: object identification string that is copied. More...
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int | getNObject () const |
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int | getObjSize () const |
| Get ObjSize: the in-memory size of the AST object in bytes. More...
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int | getRefCount () const |
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bool | getUseDefs () const |
| Get UseDefs: allow use of default values for Object attributes? More...
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void | lock (bool wait) |
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bool | same (Object const &other) const |
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void | setID (std::string const &id) |
| Set ID: object identification string that is not copied. More...
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void | setIdent (std::string const &ident) |
| Set Ident: object identification string that is copied. More...
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void | setUseDefs (bool usedefs) |
| Set UseDefs: allow use of default values for Object attributes? More...
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void | show (std::ostream &os, bool showComments=true) const |
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std::string | show (bool showComments=true) const |
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bool | test (std::string const &attrib) const |
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void | unlock (bool report=false) |
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AstObject const * | getRawPtr () const |
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AstObject * | getRawPtr () |
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virtual std::shared_ptr< Object > | copyPolymorphic () const override |
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| SphMap (AstSphMap *rawptr) |
| Construct a SphMap from a raw AST pointer. More...
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| Mapping (AstMapping *rawMap) |
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template<typename Class > |
std::shared_ptr< Class > | decompose (int i, bool copy) const |
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| Object (AstObject *object) |
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template<typename T , typename AstT > |
std::shared_ptr< T > | copyImpl () const |
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bool | getB (std::string const &attrib) const |
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std::string const | getC (std::string const &attrib) const |
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double | getD (std::string const &attrib) const |
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float | getF (std::string const &attrib) const |
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int | getI (std::string const &attrib) const |
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long int | getL (std::string const &attrib) const |
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void | set (std::string const &setting) |
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void | setB (std::string const &attrib, bool value) |
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void | setC (std::string const &attrib, std::string const &value) |
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void | setD (std::string const &attrib, double value) |
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void | setF (std::string const &attrib, float value) |
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void | setI (std::string const &attrib, int value) |
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void | setL (std::string const &attrib, long int value) |
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A SphMap is a Mapping which transforms points from a 3-dimensional Cartesian coordinate system into a 2-dimensional spherical coordinate system (longitude and latitude on a unit sphere centred at the origin). It works by regarding the input coordinates as position vectors and finding their intersection with the sphere surface. The inverse transformation always produces points which are a unit distance from the origin (i.e. unit vectors).
Attributes
- UnitRadius: input vectors lie on a unit sphere?
- PolarLong: the longitude value to assign to either pole (radians).
Notes
- The spherical coordinates are longitude (positive anti-clockwise looking from the positive latitude pole) and latitude. The Cartesian coordinates are right-handed, with the x axis (axis 1) at zero longitude and latitude, and the z axis (axis 3) at the positive latitude pole.
- At either pole, the longitude is set to the value of the PolarLong attribute.
- If the Cartesian coordinates are all zero, then the longitude and latitude are set to the value AST__BAD.