CurvedSpaceIntegrator Class Reference

List of all members.

Classes

• struct pt

Public Member Functions

• void setMass (long double M) const

  Set the mass of the black hole.
  

• void setCenter (const pt &Center) const

  Set the coordinate location of the black hole's center.
  

• int integrate (double time, const pt &O, const pt &d, double dist=-1, int maxsteps=5000)

  Call the integrate() function to compute line segments along a geodesic path.
  

• virtual int straight_ray (const pt &O, const pt &d)=0

  Virtual callback function if ray is straight, i.e.
  

• virtual int segment_intersect (const pt &where, const pt &dir, double segment_length)=0

  Core function, which is called for each geodesic segment.
  

• virtual int at_singularity ()=0

  Virtual function which is called when the central singularity is reached.
  

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Member Function Documentation

int CurvedSpaceIntegrator::integrate	(	double	time,
		const pt &	O,
		const pt &	d,
		double	dist = -1,
		int	maxsteps = 5000
	)

Call the integrate() function to compute line segments along a geodesic path.

Parameters:

	O	Ray origin
	d	Ray direction
	dist	Maximally allowed distance in coordinate space (not used currently)
	maxsteps	The maximal number of step sizes, avoids infinite loops if finite.

virtual int CurvedSpaceIntegrator::segment_intersect	(	const pt &	where,
		const pt &	dir,
		double	segment_length
	)			[pure virtual]

Core function, which is called for each geodesic segment.

If it returns non-zero, integration is terminated and the return value is forward to the integrate() function.

void CurvedSpaceIntegrator::setCenter

(

const pt &

Center

)

const

Set the coordinate location of the black hole's center.

Note:

Not tested!

virtual int CurvedSpaceIntegrator::straight_ray	(	const pt &	O,
		const pt &	d
	)			[pure virtual]

Virtual callback function if ray is straight, i.e.

in the flat space region far from the black hole and pointing to infinity.