meshlib.mrmeshpy.FastWindingNumber Class Reference

Inheritance diagram for meshlib.mrmeshpy.FastWindingNumber:

Public Member Functions
None	__init__ (self, Mesh mesh)
None	__init__ (self, FastWindingNumber arg0)
None	calcFromGrid (self, std_vector_float res, Vector3i dims, AffineXf3f gridToMeshXf, float beta, func_bool_from_float cb)
None	calcFromGridWithDistances (self, std_vector_float res, Vector3i dims, AffineXf3f gridToMeshXf, float windingNumberThreshold, float beta, float maxDistSq, float minDistSq, func_bool_from_float cb)
None	calcFromVector (self, std_vector_float res, std_vector_Vector3_float points, float beta, FaceId skipFace='MR::FaceId{}')
bool	calcSelfIntersections (self, FaceBitSet res, float beta, func_bool_from_float cb)
float	calcWithDistances (self, Vector3f p, float windingNumberThreshold, float beta, float maxDistSq, float minDistSq)

Detailed Description

Generated from:  MR::FastWindingNumber

the class for fast approximate computation of winding number for a mesh (using its AABB tree)
\\ingroup AABBTreeGroup
Note, this used to be `[[nodiscard]]`, but GCC 12 doesn't understand both `[[...]]` and `__attribute__(...)` on the same class.
A possible fix is to change `MRMESH_CLASS` globally to `[[__gnu__::__visibility__("default")]]`.

Constructor & Destructor Documentation

__init__() [1/2]

None meshlib.mrmeshpy.FastWindingNumber.__init__	(		self,
		Mesh	mesh )

constructs this from AABB tree of given mesh;
this remains valid only if tree is valid

__init__() [2/2]

None meshlib.mrmeshpy.FastWindingNumber.__init__	(		self,
		FastWindingNumber	arg0 )

Implicit copy constructor.

Member Function Documentation

calcFromGrid()

None meshlib.mrmeshpy.FastWindingNumber.calcFromGrid	(		self,
		std_vector_float	res,
		Vector3i	dims,
		AffineXf3f	gridToMeshXf,
		float	beta,
		func_bool_from_float	cb )

<summary>
calculates winding numbers in each point from a three-dimensional grid
</summary>
<param name="res">resulting winding numbers, will be resized automatically</param>
<param name="dims">dimensions of the grid</param>
<param name="gridToMeshXf">transform from integer grid locations to voxel's centers in mesh reference frame</param>
<param name="beta">determines the precision of the approximation: the more the better, recommended value 2 or more</param>

Reimplemented from meshlib.mrmeshpy.IFastWindingNumber.

calcFromGridWithDistances()

None meshlib.mrmeshpy.FastWindingNumber.calcFromGridWithDistances	(		self,
		std_vector_float	res,
		Vector3i	dims,
		AffineXf3f	gridToMeshXf,
		float	windingNumberThreshold,
		float	beta,
		float	maxDistSq,
		float	minDistSq,
		func_bool_from_float	cb )

<summary>
calculates distances with the sign obtained from winding number in each point from a three-dimensional grid
</summary>
<param name="res">resulting signed distances, will be resized automatically</param>
<param name="dims">dimensions of the grid</param>
<param name="gridToMeshXf">transform from integer grid locations to voxel's centers in mesh reference frame</param>
<param name="windingNumberThreshold">positive distance if winding number below or equal this threshold</param>
<param name="beta">determines the precision of the approximation: the more the better, recommended value 2 or more</param>

Reimplemented from meshlib.mrmeshpy.IFastWindingNumber.

calcFromVector()

None meshlib.mrmeshpy.FastWindingNumber.calcFromVector	(		self,
		std_vector_float	res,
		std_vector_Vector3_float	points,
		float	beta,
		FaceId	skipFace = 'MR::FaceId{}' )

see methods' descriptions in IFastWindingNumber

Reimplemented from meshlib.mrmeshpy.IFastWindingNumber.

calcSelfIntersections()

bool meshlib.mrmeshpy.FastWindingNumber.calcSelfIntersections	(		self,
		FaceBitSet	res,
		float	beta,
		func_bool_from_float	cb )

<summary>
calculates winding numbers for all centers of mesh's triangles. if winding number is less than 0 or greater then 1, that face is marked as self-intersected
</summary>
<param name="res">resulting bit set</param>
<param name="beta">determines the precision of the approximation: the more the better, recommended value 2 or more</param>
<returns>false if the operation was canceled by the user</returns>

Reimplemented from meshlib.mrmeshpy.IFastWindingNumber.

calcWithDistances()

float meshlib.mrmeshpy.FastWindingNumber.calcWithDistances	(		self,
		Vector3f	p,
		float	windingNumberThreshold,
		float	beta,
		float	maxDistSq,
		float	minDistSq )

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

• mrmeshpy.pyi