UT_SubtendedAngle< T, S > Class Template Reference

#include <UT_SolidAngle.h>

Public Member Functions
	UT_SubtendedAngle ()
	This is outlined so that we don't need to include UT_BVHImpl.h. More...
	~UT_SubtendedAngle ()
	This is outlined so that we don't need to include UT_BVHImpl.h. More...
	UT_SubtendedAngle (const int nsegments, const int *const segment_points, const int npoints, const UT_Vector2T< S > *const positions, const int order=2)
void	init (const int nsegments, const int *const segment_points, const int npoints, const UT_Vector2T< S > *const positions, const int order=2)
void	clear ()
	Frees myTree and myData, and clears the rest. More...
bool	isClear () const
	Returns true if this is clear. More...
T	computeAngle (const UT_Vector2T< T > &query_point, const T accuracy_scale=T(2.0)) const

Detailed Description

template<typename T, typename S>
class UT_SubtendedAngle< T, S >

Class for quickly approximating signed subtended angle of a large curve from many query points. This is useful for computing the generalized winding number at many points.

NOTE: This is currently only instantiated for <float,float>.

Definition at line 288 of file UT_SolidAngle.h.

Constructor & Destructor Documentation

template<typename T, typename S>

UT_SubtendedAngle< T, S >::UT_SubtendedAngle

(

)

This is outlined so that we don't need to include UT_BVHImpl.h.

template<typename T, typename S>

UT_SubtendedAngle< T, S >::~UT_SubtendedAngle

(

)

This is outlined so that we don't need to include UT_BVHImpl.h.

template<typename T, typename S>

UT_SubtendedAngle< T, S >::UT_SubtendedAngle ( const int  nsegments, const int *const  segment_points, const int  npoints, const UT_Vector2T< S > *const  positions, const int  order = 2  )

inline

NOTE: This does not take ownership over segment_points or positions, but does keep pointers to them, so the caller must keep them in scope for the lifetime of this structure.

Definition at line 299 of file UT_SolidAngle.h.

Member Function Documentation

template<typename T, typename S>

void UT_SubtendedAngle< T, S >::clear

(

)

Frees myTree and myData, and clears the rest.

template<typename T, typename S>

T UT_SubtendedAngle< T, S >::computeAngle	(	const UT_Vector2T< T > &	query_point,
		const T	accuracy_scale = T(2.0)
	)		const

Returns an approximation of the signed solid angle of the mesh from the specified query_point accuracy_scale is the value of (maxP/q) beyond which the approximation of the box will be used.

template<typename T, typename S>

void UT_SubtendedAngle< T, S >::init	(	const int	nsegments,
		const int *const	segment_points,
		const int	npoints,
		const UT_Vector2T< S > *const	positions,
		const int	order = 2
	)

Initialize the tree and data. NOTE: It is safe to call init on a UT_SolidAngle that has had init called on it before, to re-initialize it.

template<typename T, typename S>

bool UT_SubtendedAngle< T, S >::isClear ( ) const

inline

Returns true if this is clear.

Definition at line 322 of file UT_SolidAngle.h.

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The documentation for this class was generated from the following file:

• UT/UT_SolidAngle.h