MRPolyline2Intersect.h File Reference

#include <MRCMisc/exports.h>
#include <stdbool.h>
#include <stddef.h>

Go to the source code of this file.

Typedefs
typedef struct MR_EdgePoint	MR_EdgePoint
typedef struct MR_IntersectionPrecomputes2_double	MR_IntersectionPrecomputes2_double
typedef struct MR_IntersectionPrecomputes2_float	MR_IntersectionPrecomputes2_float
typedef struct MR_Line2d	MR_Line2d
typedef struct MR_Line2f	MR_Line2f
typedef struct MR_Polyline2	MR_Polyline2
typedef struct MR_Vector2f	MR_Vector2f
typedef struct MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref	MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref
typedef struct MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref	MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref
typedef struct MR_std_optional_MR_PolylineIntersectionResult2	MR_std_optional_MR_PolylineIntersectionResult2
typedef struct MR_PolylineIntersectionResult2	MR_PolylineIntersectionResult2

Functions
MRC_API bool	MR_isPointInsidePolyline (const MR_Polyline2 *polyline, const MR_Vector2f *point)
	detect if given point is inside polyline, by counting ray intersections
MRC_API const MR_EdgePoint *	MR_PolylineIntersectionResult2_Get_edgePoint (const MR_PolylineIntersectionResult2 *_this)
MRC_API void	MR_PolylineIntersectionResult2_Set_edgePoint (MR_PolylineIntersectionResult2 *_this, const MR_EdgePoint *value)
MRC_API MR_EdgePoint *	MR_PolylineIntersectionResult2_GetMutable_edgePoint (MR_PolylineIntersectionResult2 *_this)
MRC_API const float *	MR_PolylineIntersectionResult2_Get_distanceAlongLine (const MR_PolylineIntersectionResult2 *_this)
MRC_API void	MR_PolylineIntersectionResult2_Set_distanceAlongLine (MR_PolylineIntersectionResult2 *_this, float value)
MRC_API float *	MR_PolylineIntersectionResult2_GetMutable_distanceAlongLine (MR_PolylineIntersectionResult2 *_this)
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_DefaultConstruct (void)
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_DefaultConstructArray (size_t num_elems)
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_ConstructFrom (const MR_EdgePoint *edgePoint, float distanceAlongLine)
MRC_API const MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_OffsetPtr (const MR_PolylineIntersectionResult2 *ptr, ptrdiff_t i)
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_OffsetMutablePtr (MR_PolylineIntersectionResult2 *ptr, ptrdiff_t i)
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_ConstructFromAnother (const MR_PolylineIntersectionResult2 *_other)
MRC_API void	MR_PolylineIntersectionResult2_Destroy (const MR_PolylineIntersectionResult2 *_this)
	Destroys a heap-allocated instance of MR_PolylineIntersectionResult2. Does nothing if the pointer is null.
MRC_API void	MR_PolylineIntersectionResult2_DestroyArray (const MR_PolylineIntersectionResult2 *_this)
	Destroys a heap-allocated array of MR_PolylineIntersectionResult2. Does nothing if the pointer is null.
MRC_API MR_PolylineIntersectionResult2 *	MR_PolylineIntersectionResult2_AssignFromAnother (MR_PolylineIntersectionResult2 *_this, const MR_PolylineIntersectionResult2 *_other)
MRC_API MR_std_optional_MR_PolylineIntersectionResult2 *	MR_rayPolylineIntersect_MR_Line2f (const MR_Polyline2 *polyline, const MR_Line2f *line, const float *rayStart, const float *rayEnd, const MR_IntersectionPrecomputes2_float *prec, const bool *closestIntersect)
MRC_API MR_std_optional_MR_PolylineIntersectionResult2 *	MR_rayPolylineIntersect_MR_Line2d (const MR_Polyline2 *polyline, const MR_Line2d *line, const double *rayStart, const double *rayEnd, const MR_IntersectionPrecomputes2_double *prec, const bool *closestIntersect)
MRC_API void	MR_rayPolylineIntersectAll_MR_Line2f (const MR_Polyline2 *polyline, const MR_Line2f *line, const MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref *callback, const float *rayStart, const float *rayEnd, const MR_IntersectionPrecomputes2_float *prec)
MRC_API void	MR_rayPolylineIntersectAll_MR_Line2d (const MR_Polyline2 *polyline, const MR_Line2d *line, const MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref *callback, const double *rayStart, const double *rayEnd, const MR_IntersectionPrecomputes2_double *prec)

Typedef Documentation

MR_EdgePoint

typedef struct MR_EdgePoint MR_EdgePoint

MR_IntersectionPrecomputes2_double

typedef struct MR_IntersectionPrecomputes2_double MR_IntersectionPrecomputes2_double

MR_IntersectionPrecomputes2_float

typedef struct MR_IntersectionPrecomputes2_float MR_IntersectionPrecomputes2_float

MR_Line2d

typedef struct MR_Line2d MR_Line2d

MR_Line2f

typedef struct MR_Line2f MR_Line2f

MR_Polyline2

typedef struct MR_Polyline2 MR_Polyline2

MR_PolylineIntersectionResult2

typedef struct MR_PolylineIntersectionResult2 MR_PolylineIntersectionResult2

Generated from class MR::PolylineIntersectionResult2. Supported MR_PassBy modes: MR_PassBy_DefaultConstruct, MR_PassBy_Copy, MR_PassBy_Move (and MR_PassBy_DefaultArgument and MR_PassBy_NoObject if supported by the callee).

MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref

typedef struct MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref

MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref

typedef struct MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref

MR_std_optional_MR_PolylineIntersectionResult2

typedef struct MR_std_optional_MR_PolylineIntersectionResult2 MR_std_optional_MR_PolylineIntersectionResult2

MR_Vector2f

typedef struct MR_Vector2f MR_Vector2f

Function Documentation

MR_isPointInsidePolyline()

MRC_API bool MR_isPointInsidePolyline	(	const MR_Polyline2 *	polyline,
		const MR_Vector2f *	point )

detect if given point is inside polyline, by counting ray intersections

Parameters

polyline	input polyline
point	input point Generated from function MR::isPointInsidePolyline. Parameter polyline can not be null. It is a single object. Parameter point can not be null. It is a single object.

MR_PolylineIntersectionResult2_AssignFromAnother()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_AssignFromAnother	(	MR_PolylineIntersectionResult2 *	_this,
		const MR_PolylineIntersectionResult2 *	_other )

Generated from method MR::PolylineIntersectionResult2::operator=. Parameter _this can not be null. It is a single object. Parameter _other can not be null. It is a single object. The reference to things referred to by the parameter _other (if any) might be preserved in this object. The returned pointer will never be null. It is non-owning, do NOT destroy it. When this function is called, this object will drop any object references it had previously.

MR_PolylineIntersectionResult2_ConstructFrom()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_ConstructFrom	(	const MR_EdgePoint *	edgePoint,
		float	distanceAlongLine )

Constructs MR::PolylineIntersectionResult2 elementwise. Parameter edgePoint can not be null. It is a single object. The reference to the parameter edgePoint might be preserved in the constructed object. Never returns null. Returns an instance allocated on the heap! Must call MR_PolylineIntersectionResult2_Destroy() to free it when you're done using it. When this function is called, this object will drop any object references it had previously.

MR_PolylineIntersectionResult2_ConstructFromAnother()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_ConstructFromAnother

(

const MR_PolylineIntersectionResult2 *

_other

)

Generated from constructor MR::PolylineIntersectionResult2::PolylineIntersectionResult2. Parameter _other can not be null. It is a single object. The reference to things referred to by the parameter _other (if any) might be preserved in the constructed object. Never returns null. Returns an instance allocated on the heap! Must call MR_PolylineIntersectionResult2_Destroy() to free it when you're done using it.

MR_PolylineIntersectionResult2_DefaultConstruct()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_DefaultConstruct

(

void

)

Constructs an empty (default-constructed) instance. Never returns null. Returns an instance allocated on the heap! Must call MR_PolylineIntersectionResult2_Destroy() to free it when you're done using it.

MR_PolylineIntersectionResult2_DefaultConstructArray()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_DefaultConstructArray

(

size_t

num_elems

)

Constructs an array of empty (default-constructed) instances, of the specified size. Will never return null. The array must be destroyed using MR_PolylineIntersectionResult2_DestroyArray(). Use MR_PolylineIntersectionResult2_OffsetMutablePtr() and MR_PolylineIntersectionResult2_OffsetPtr() to access the array elements.

MR_PolylineIntersectionResult2_Destroy()

MRC_API void MR_PolylineIntersectionResult2_Destroy

(

const MR_PolylineIntersectionResult2 *

_this

)

Destroys a heap-allocated instance of MR_PolylineIntersectionResult2. Does nothing if the pointer is null.

MR_PolylineIntersectionResult2_DestroyArray()

MRC_API void MR_PolylineIntersectionResult2_DestroyArray

(

const MR_PolylineIntersectionResult2 *

_this

)

Destroys a heap-allocated array of MR_PolylineIntersectionResult2. Does nothing if the pointer is null.

MR_PolylineIntersectionResult2_Get_distanceAlongLine()

MRC_API const float * MR_PolylineIntersectionResult2_Get_distanceAlongLine

(

const MR_PolylineIntersectionResult2 *

_this

)

stores the distance from ray origin to the intersection point in direction units Returns a pointer to a member variable of class MR::PolylineIntersectionResult2 named distanceAlongLine. Parameter _this can not be null. It is a single object. The returned pointer will never be null. It is non-owning, do NOT destroy it. The reference to this object might be preserved as the return value.

MR_PolylineIntersectionResult2_Get_edgePoint()

MRC_API const MR_EdgePoint * MR_PolylineIntersectionResult2_Get_edgePoint

(

const MR_PolylineIntersectionResult2 *

_this

)

intersection point in polyline Returns a pointer to a member variable of class MR::PolylineIntersectionResult2 named edgePoint. Parameter _this can not be null. It is a single object. The returned pointer will never be null. It is non-owning, do NOT destroy it. The reference to this object might be preserved as the return value.

MR_PolylineIntersectionResult2_GetMutable_distanceAlongLine()

MRC_API float * MR_PolylineIntersectionResult2_GetMutable_distanceAlongLine

(

MR_PolylineIntersectionResult2 *

_this

)

stores the distance from ray origin to the intersection point in direction units Returns a mutable pointer to a member variable of class MR::PolylineIntersectionResult2 named distanceAlongLine. Parameter _this can not be null. It is a single object. The returned pointer will never be null. It is non-owning, do NOT destroy it. The reference to this object might be preserved as the return value.

MR_PolylineIntersectionResult2_GetMutable_edgePoint()

MRC_API MR_EdgePoint * MR_PolylineIntersectionResult2_GetMutable_edgePoint

(

MR_PolylineIntersectionResult2 *

_this

)

intersection point in polyline Returns a mutable pointer to a member variable of class MR::PolylineIntersectionResult2 named edgePoint. Parameter _this can not be null. It is a single object. The returned pointer will never be null. It is non-owning, do NOT destroy it. The reference to this object might be preserved as the return value.

MR_PolylineIntersectionResult2_OffsetMutablePtr()

MRC_API MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_OffsetMutablePtr	(	MR_PolylineIntersectionResult2 *	ptr,
		ptrdiff_t	i )

Offsets a pointer to an array element by i positions (not bytes). Use only if you're certain that the pointer points to an array element. The reference to the parameter ptr might be preserved in the return value.

MR_PolylineIntersectionResult2_OffsetPtr()

MRC_API const MR_PolylineIntersectionResult2 * MR_PolylineIntersectionResult2_OffsetPtr	(	const MR_PolylineIntersectionResult2 *	ptr,
		ptrdiff_t	i )

Offsets a pointer to an array element by i positions (not bytes). Use only if you're certain that the pointer points to an array element. The reference to the parameter ptr might be preserved in the return value.

MR_PolylineIntersectionResult2_Set_distanceAlongLine()

MRC_API void MR_PolylineIntersectionResult2_Set_distanceAlongLine	(	MR_PolylineIntersectionResult2 *	_this,
		float	value )

stores the distance from ray origin to the intersection point in direction units Modifies a member variable of class MR::PolylineIntersectionResult2 named distanceAlongLine. Parameter _this can not be null. It is a single object. When this function is called, this object will drop object references it had previously in distanceAlongLine.

MR_PolylineIntersectionResult2_Set_edgePoint()

MRC_API void MR_PolylineIntersectionResult2_Set_edgePoint	(	MR_PolylineIntersectionResult2 *	_this,
		const MR_EdgePoint *	value )

intersection point in polyline Modifies a member variable of class MR::PolylineIntersectionResult2 named edgePoint. Parameter _this can not be null. It is a single object. Parameter value can not be null. It is a single object. The reference to the parameter value might be preserved in this object in element edgePoint. When this function is called, this object will drop object references it had previously in edgePoint.

MR_rayPolylineIntersect_MR_Line2d()

MRC_API MR_std_optional_MR_PolylineIntersectionResult2 * MR_rayPolylineIntersect_MR_Line2d	(	const MR_Polyline2 *	polyline,
		const MR_Line2d *	line,
		const double *	rayStart,
		const double *	rayEnd,
		const MR_IntersectionPrecomputes2_double *	prec,
		const bool *	closestIntersect )

Finds ray and polyline intersection in double-precision. rayStart and rayEnd define the interval on the ray to detect an intersection. prec can be specified to reuse some precomputations (e.g. for checking many parallel rays). Finds the closest intersection to ray origin (line param=0) or any intersection for better performance if !closestIntersect. Generated from function MR::rayPolylineIntersect. Parameter polyline can not be null. It is a single object. Parameter line can not be null. It is a single object. Parameter rayStart has a default argument: 0, pass a null pointer to use it. Parameter rayEnd has a default argument: 1.7976931348623157e308, pass a null pointer to use it. Parameter prec defaults to a null pointer in C++. Parameter closestIntersect has a default argument: true, pass a null pointer to use it. Never returns null. Returns an instance allocated on the heap! Must call MR_std_optional_MR_PolylineIntersectionResult2_Destroy() to free it when you're done using it.

MR_rayPolylineIntersect_MR_Line2f()

MRC_API MR_std_optional_MR_PolylineIntersectionResult2 * MR_rayPolylineIntersect_MR_Line2f	(	const MR_Polyline2 *	polyline,
		const MR_Line2f *	line,
		const float *	rayStart,
		const float *	rayEnd,
		const MR_IntersectionPrecomputes2_float *	prec,
		const bool *	closestIntersect )

Finds ray and polyline intersection in float-precision. rayStart and rayEnd define the interval on the ray to detect an intersection. prec can be specified to reuse some precomputations (e.g. for checking many parallel rays). Finds the closest intersection to ray origin (line param=0) or any intersection for better performance if !closestIntersect. Generated from function MR::rayPolylineIntersect. Parameter polyline can not be null. It is a single object. Parameter line can not be null. It is a single object. Parameter rayStart has a default argument: 0, pass a null pointer to use it. Parameter rayEnd has a default argument: 3.40282347e38f, pass a null pointer to use it. Parameter prec defaults to a null pointer in C++. Parameter closestIntersect has a default argument: true, pass a null pointer to use it. Never returns null. Returns an instance allocated on the heap! Must call MR_std_optional_MR_PolylineIntersectionResult2_Destroy() to free it when you're done using it.

MR_rayPolylineIntersectAll_MR_Line2d()

MRC_API void MR_rayPolylineIntersectAll_MR_Line2d	(	const MR_Polyline2 *	polyline,
		const MR_Line2d *	line,
		const MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_double_double_ref_double_ref *	callback,
		const double *	rayStart,
		const double *	rayEnd,
		const MR_IntersectionPrecomputes2_double *	prec )

Intersects 2D ray and polyline in double-precision. Reports all intersections via given callback with the tendency to do it from ray start to ray end, but without guarantee of exact order. Generated from function MR::rayPolylineIntersectAll. Parameter polyline can not be null. It is a single object. Parameter line can not be null. It is a single object. Parameter callback can not be null. It is a single object. Parameter rayStart has a default argument: 0.0, pass a null pointer to use it. Parameter rayEnd has a default argument: 1.7976931348623157e308, pass a null pointer to use it. Parameter prec defaults to a null pointer in C++.

MR_rayPolylineIntersectAll_MR_Line2f()

MRC_API void MR_rayPolylineIntersectAll_MR_Line2f	(	const MR_Polyline2 *	polyline,
		const MR_Line2f *	line,
		const MR_std_function_MR_Processing_from_const_MR_EdgePoint_ref_float_float_ref_float_ref *	callback,
		const float *	rayStart,
		const float *	rayEnd,
		const MR_IntersectionPrecomputes2_float *	prec )

Intersects 2D ray and polyline in single-precision. Reports all intersections via given callback with the tendency to do it from ray start to ray end, but without guarantee of exact order. Generated from function MR::rayPolylineIntersectAll. Parameter polyline can not be null. It is a single object. Parameter line can not be null. It is a single object. Parameter callback can not be null. It is a single object. Parameter rayStart has a default argument: 0.0f, pass a null pointer to use it. Parameter rayEnd has a default argument: 3.40282347e38f, pass a null pointer to use it. Parameter prec defaults to a null pointer in C++.