UseTessellation

クラス
class	mgTL2Face
	mgTL2Face is a proprietry class for Face tessellation. [詳解]
class	mgTL2PlBridge
	Express a splitting line for a face for tessellation. [詳解]
class	mgTL2Fan
	mgTL2Fan is a point list to constitue a fan. [詳解]
class	mgTL2Fans
	Defines a vector mgTL2Fan. [詳解]
class	mgTL2LPline
	mgTL2LPline is limitted subinterval of mgTL2Polyline. [詳解]
class	mgTL2parameter
	Holds necessary parameter data for face tessellation. [詳解]
class	mgTL2Polyline
	mgTL2Polyline holds a parameter line(polyline) of a surface. [詳解]
class	mgTL2Triangle
	mgTL2Triangle holds (multiple) triangles data, which are a fan or a strip. [詳解]
class	mgTL2Triangles
	A vector of mgTL2Triangle's. [詳解]
class	mgTLInputParam
	A class that contains all the necessary input parameters to make tessellation. [詳解]

マクロ定義
#define	EDGE_LENGTH_DENOM   8.
#define	NEAR_PARAM   0.002
#define	STRICT_ZERO_ANGLE   0.00025
#define	LOOSE_ZERO_ANGLE   0.20
#define	LOOSE_ZERO_ANGLE2   0.01
#define	CONCAVEANGLE1   -0.7
#define	CONCAVEANGLE2   -2.441
#define	SHARPANGLE   2.441
#define	RIGHT_ANGLE   STRICT_ZERO_ANGLE
#define	MAX_DEVIATION_FROM_MIDDLE   4.
#define	DEVIDE_RATIO   8

列挙型
enum	mgTL2Polyline::polyline_type {   mgTL2Polyline::WHOLE_INNER =0, mgTL2Polyline::START_BOUNDARY, mgTL2Polyline::END_BOUNDARY, mgTL2Polyline::START_END_BOUNDARY,   mgTL2Polyline::WHOLE_BOUNDARY }

関数
MGEdge *	make_Edge (const mgTL2parameter &tlpara, const MGEdge &edgeuv, short id[3], mgTL2Polyline *&poly)
bool	splitTl (const MGFace &face, const mgTL2parameter &tlparam, bool is_u, MGPvector< MGFace > &faces)
void	split_by_bridges (const MGFace &face, MGPvector< mgTL2PlBridge > &networks, MGPvector< MGFace > &faces)
int	find_concave_at_vertex (const MGLoop &lp, MGVector &Vpre, MGVector &Vaft, MGPosition &uv_vertex, MGLEPoint &le_vertex)
void	triangulate (const MGLoop &polygon, mgTL2Triangles &triangles)
void	triangulate (const mgTL2LPline polygon[4], mgTL2Triangles &triangles)
void	triangulate (const mgTL2Polyline *polygon[4], mgTL2Triangles &triangles)
double	compute_max_edge_len (const MGObject &twoManifold)
void	getXYZline_ensuring_max_edge_length (double maxElen2, const MGLBRep &xyzpolyline, MGLBRep &xyzpolylineOut)
void	getUVline_ensuring_max_edge_length (const mgTL2parameter &para, const MGCurve &uvline, MGLBRep &xyzpolylineOut)
	Construct polyline MGLBRep whose maximum edge length is para.get_max_edge_len_sqr(). [詳解]
const mgTL2Polyline *	TL2Polyline (const MGEdge *edg)
const mgTL2Polyline *	TL2Polyline (MGComplex::const_pcellItr ei)

詳解

マクロ定義詳解

#define CONCAVEANGLE1   -0.7

#define CONCAVEANGLE2   -2.441

#define DEVIDE_RATIO   8

Split value of a edge vertex is employed when it is within span_length/MAX_DEVIATION_FROM_MIDDLE from the middle.

#define EDGE_LENGTH_DENOM   8.

#define LOOSE_ZERO_ANGLE   0.20

#define LOOSE_ZERO_ANGLE2   0.01

#define MAX_DEVIATION_FROM_MIDDLE   4.

#define NEAR_PARAM   0.002

#define RIGHT_ANGLE   STRICT_ZERO_ANGLE

#define SHARPANGLE   2.441

#define STRICT_ZERO_ANGLE   0.00025

列挙型詳解

enum mgTL2Polyline::polyline_type

列挙値
WHOLE_INNER
START_BOUNDARY
END_BOUNDARY
START_END_BOUNDARY
WHOLE_BOUNDARY

関数詳解

double compute_max_edge_len

(

const MGObject &

twoManifold

)

Compute maximum edge length for the tessellation from an object, twoManifold. twoManifold must be MGFSurface or MGShell.

int find_concave_at_vertex	(	const MGLoop &	lp,
		MGVector &	Vpre,
		MGVector &	Vaft,
		MGPosition &	uv_vertex,
		MGLEPoint &	le_vertex
	)

void getUVline_ensuring_max_edge_length	(	const mgTL2parameter &	para,
		const MGCurve &	uvline,
		MGLBRep &	xyzpolylineOut
	)

Construct polyline MGLBRep whose maximum edge length is para.get_max_edge_len_sqr().

引数

para	Input parameter.
uvline	Input original (u,v) line of the surface.
xyzpolylineOut	Output LBRep of order 2 whose knot vector is: t(i)=i-1 for i=1,...,n and t(0)=0 and t(n+1)=n-1.

void getXYZline_ensuring_max_edge_length	(	double	maxElen2,
		const MGLBRep &	xyzpolyline,
		MGLBRep &	xyzpolylineOut
	)

引数

xyzpolylineOut

t(i)=i-1 for i=1,...,n and t(0)=0 and t(n+1)=n-1.

MGEdge* make_Edge	(	const mgTL2parameter &	tlpara,
		const MGEdge &	edgeuv,
		short	id[3],
		mgTL2Polyline *&	poly
	)

make_Edge() makes a polyline edge(parameter edge) of edge edgeuv which are wholly on a curve of m_param.Bpoly(). All of the points of m_param.Bpoly()[id[0]][id[1]] will be converted to surface (u,v) parameter. These (u,v) representation makes the polyline edge.

void split_by_bridges	(	const MGFace &	face,
		MGPvector< mgTL2PlBridge > &	networks,
		MGPvector< MGFace > &	faces
	)

bool splitTl	(	const MGFace &	face,
		const mgTL2parameter &	tlparam,
		bool	is_u,
		MGPvector< MGFace > &	faces
	)

const mgTL2Polyline* TL2Polyline

(

const MGEdge *

edg

)

const mgTL2Polyline* TL2Polyline

(

MGComplex::const_pcellItr

ei

)

void triangulate	(	const MGLoop &	polygon,
		mgTL2Triangles &	triangles
	)

Triangulate polygon. The result will be appended onto triangles.

引数

polygon	Target MGLoop to triangulate whose edges' base_curve() must be
triangles	mgTL2Polyline.Triangulated data will be appended.

void triangulate	(	const mgTL2LPline	polygon[4],
		mgTL2Triangles &	triangles
	)

Triangulate polygon. The result will be appended onto triangles.

引数

polygon	Four edges that constitute a closed polygon.
triangles	Triangulated data will be appended.

void triangulate	(	const mgTL2Polyline *	polygon[4],
		mgTL2Triangles &	triangles
	)

Triangulate polygon. The result will be appended onto triangles.

引数

polygon	Four edges that constitute a closed polygon.
triangles	Triangulated data will be appended.