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LSSTDataManagementBasePackage
TimeFrame.h
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22 #ifndef ASTSHIM_TIMEFRAME_H
23 #define ASTSHIM_TIMEFRAME_H
24 
25 #include <memory>
26 #include <vector>
27 
28 #include "astshim/detail/utils.h"
29 #include "astshim/Frame.h"
30 
31 namespace ast {
32 
80 class TimeFrame : public Frame {
81  friend class Object;
82 
83 public:
89  explicit TimeFrame(std::string const &options = "")
90  : Frame(reinterpret_cast<AstFrame *>(astTimeFrame("%s", options.c_str()))) {
91  assertOK();
92  }
93 
94  virtual ~TimeFrame() {}
95 
97  TimeFrame(TimeFrame const &) = default;
98  TimeFrame(TimeFrame &&) = default;
99  TimeFrame &operator=(TimeFrame const &) = delete;
100  TimeFrame &operator=(TimeFrame &&) = default;
101 
105  }
106 
123  double currentTime() const {
124  auto result = detail::safeDouble(astCurrentTime(getRawPtr()));
125  assertOK();
126  return result;
127  }
128 
130  std::string getAlignTimeScale() const { return getC("AlignTimeScale"); }
131 
133  double getLTOffset() const { return getD("LTOffset"); }
134 
136  double getTimeOrigin() const { return getD("TimeOrigin"); }
137 
139  std::string getTimeScale() const { return getC("TimeScale"); }
140 
142  void setAlignTimeScale(std::string const &scale) { return setC("AlignTimeScale", scale); }
143 
145  void setLTOffset(double offset) { return setD("LTOffset", offset); }
146 
148  void setTimeOrigin(double origin) { return setD("TimeOrigin", origin); }
149 
151  void setTimeScale(std::string const &scale) { return setC("TimeScale", scale); }
152 
153 protected:
154  virtual std::shared_ptr<Object> copyPolymorphic() const override {
155  return copyImpl<TimeFrame, AstTimeFrame>();
156  }
157 
159  explicit TimeFrame(AstTimeFrame *rawptr) : Frame(reinterpret_cast<AstFrame *>(rawptr)) {
160  if (!astIsATimeFrame(getRawPtr())) {
162  os << "this is a " << getClassName() << ", which is not a TimeFrame";
163  throw std::invalid_argument(os.str());
164  }
165  }
166 };
167 
168 } // namespace ast
169 
170 #endif
double getLTOffset() const
Get LTOffset: the offset of Local Time from UTC, in hours.
Definition: TimeFrame.h:133
virtual std::shared_ptr< Object > copyPolymorphic() const override
Return a deep copy of this object.
Definition: TimeFrame.h:154
AstObject const * getRawPtr() const
Get the raw AST pointer.
Definition: Object.h:292
TimeFrame & operator=(TimeFrame const &)=delete
TimeFrame(AstTimeFrame *rawptr)
Construct a TimeFrame from a raw AST pointer.
Definition: TimeFrame.h:159
AST wrapper classes and functions.
std::string getAlignTimeScale() const
Get AlignTimeScale: time scale in which to align TimeFrames.
Definition: TimeFrame.h:130
std::string getClassName() const
Get Class: the name of the class (e.g.
Definition: Object.h:139
def scale(algorithm, min, max=None, frame=None)
Definition: ds9.py:109
double currentTime() const
Get the current system time.
Definition: TimeFrame.h:123
void assertOK(AstObject *rawPtr1=nullptr, AstObject *rawPtr2=nullptr)
Throw std::runtime_error if AST&#39;s state is bad.
Definition: base.cc:49
std::string getTimeScale() const
Get TimeScale: the timescale used by the TimeFrame.
Definition: TimeFrame.h:139
STL class.
void setTimeOrigin(double origin)
Set TimeOrigin: the zero point for TimeFrame axis values.
Definition: TimeFrame.h:148
Frame is used to represent a coordinate system.
Definition: Frame.h:157
void setC(std::string const &attrib, std::string const &value)
Set the value of an attribute as a string.
Definition: Object.h:464
T str(T... args)
void setAlignTimeScale(std::string const &scale)
Set AlignTimeScale: time scale in which to align TimeFrames.
Definition: TimeFrame.h:142
T static_pointer_cast(T... args)
PointD offset(PointD point1, PointD point2, double offset) const
Find the point which is offset a specified distance along the geodesic curve between two other points...
Definition: Frame.h:1075
void setLTOffset(double offset)
Set LTOffset: the offset of Local Time from UTC, in hours.
Definition: TimeFrame.h:145
TimeFrame(std::string const &options="")
Construct a TimeFrame.
Definition: TimeFrame.h:89
double getTimeOrigin() const
Get TimeOrigin: the zero point for TimeFrame axis values.
Definition: TimeFrame.h:136
virtual ~TimeFrame()
Definition: TimeFrame.h:94
void setD(std::string const &attrib, double value)
Set the value of an attribute as a double.
Definition: Object.h:476
double getD(std::string const &attrib) const
Get the value of an attribute as a double.
Definition: Object.h:374
double safeDouble(double val)
Return a double value after checking status and replacing AST__BAD with nan
Definition: utils.h:100
std::string const getC(std::string const &attrib) const
Get the value of an attribute as a string.
Definition: Object.h:361
std::ostream * os
Definition: Schema.cc:746
A TimeFrame is a specialised form of one-dimensional Frame which represents various coordinate system...
Definition: TimeFrame.h:80
Abstract base class for all AST objects.
Definition: Object.h:51
py::object result
Definition: _schema.cc:429
std::shared_ptr< TimeFrame > copy() const
Return a deep copy of this object.
Definition: TimeFrame.h:103
void setTimeScale(std::string const &scale)
Set TimeScale: the timescale used by the TimeFrame.
Definition: TimeFrame.h:151