Class to project 3D points on a triangulated surface. If a parametrization is available, the UV are interpolated at the triangle projection. Not associated to the mesh elements of a GEntity, so it can be used on mesh sub-patches or on background mesh. More...

#include <meshOctreeLibOL.h>

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Public Member Functions
	SurfaceProjector ()

	SurfaceProjector (GFace *gf)

	SurfaceProjector (SurfaceProjector const &)=delete

SurfaceProjector &	operator= (SurfaceProjector const &)=delete

	~SurfaceProjector ()

bool	initialize (GFace gf, const std::vector< MTriangle > &triangles, bool useCADStl=false)
	Fill the triangles and uvs from the triangles, then build the octree. Overwrite existing triangulation/octree if there is one. More...

void	clear ()
	Clear the triangulation and delete the octree. More...

bool	setAnalyticalProjection (GFace *gf)
	The SurfaceProjector can project with an analytical formula instead of a triangulation and a octree Supported shapes: Sphere. More...

GPoint	closestPoint (const double query[3], bool evalOnCAD=false, bool projectOnCAD=false) const
	Get the query closest point on the triangulated surface. More...

Public Attributes
GFace *	gf

Protected Attributes
std::vector< std::array< double, 3 > >	points

std::vector< std::array< int32_t, 3 > >	triangles

std::vector< std::array< std::array< double, 2 >, 3 > >	triangle_uvs

std::vector< bool >	triangle_no_uv_eval

int64_t	OctIdx

bool	useAnalyticalFormula = false

GFace::GeomType	analyticalShape = GFace::GeomType::Unknown

std::array< double, 10 >	analyticalParameters

Detailed Description

Class to project 3D points on a triangulated surface. If a parametrization is available, the UV are interpolated at the triangle projection. Not associated to the mesh elements of a GEntity, so it can be used on mesh sub-patches or on background mesh.

Definition at line 24 of file meshOctreeLibOL.h.

Constructor & Destructor Documentation

◆ SurfaceProjector() [1/3]

SurfaceProjector::SurfaceProjector ( )

inline

Definition at line 26 of file meshOctreeLibOL.h.

◆ SurfaceProjector() [2/3]

SurfaceProjector::SurfaceProjector ( GFace * gf )

Definition at line 317 of file meshOctreeLibOL.cpp.

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◆ SurfaceProjector() [3/3]

SurfaceProjector::SurfaceProjector ( SurfaceProjector const & )

delete

◆ ~SurfaceProjector()

SurfaceProjector::~SurfaceProjector ( )

Definition at line 341 of file meshOctreeLibOL.cpp.

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Member Function Documentation

◆ clear()

void SurfaceProjector::clear ( )

Clear the triangulation and delete the octree.

Definition at line 329 of file meshOctreeLibOL.cpp.

Referenced by initialize(), and ~SurfaceProjector().

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◆ closestPoint()

GPoint SurfaceProjector::closestPoint	(	const double	query[3],
		bool	evalOnCAD = `false`,
		bool	projectOnCAD = `false`
	)		const

Get the query closest point on the triangulated surface.

Parameters

query[3]	3D coordinates of the query point
evalOnCAD	If param available, evaluate the face CAD mapping at the interpolated UV
projectOnCAD	If param available, call closestPoint from the CAD geometry engine, with the interpolated UV as initial guess

Returns: the projection, check GPoint::succeeded() for projection success / failure

Definition at line 567 of file meshOctreeLibOL.cpp.

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◆ initialize()

bool SurfaceProjector::initialize	(	GFace *	gf,
		const std::vector< MTriangle * > &	triangles,
		bool	useCADStl = `false`
	)

Fill the triangles and uvs from the triangles, then build the octree. Overwrite existing triangulation/octree if there is one.

Parameters

gf	The CAD face containing the triangles
triangles	The triangles used to build the triangulated geometry support
useCADStl	If true, build and use the STL of the CAD face