名前空間
	MGCL

クラス
class	MGBSumCurve
	Define MGBSumCurve Class(Boolean sum curve of three curves). [詳解]

class	MGBSumSurf
	Defines Boolean sum surface. [詳解]

class	MGCompositeCurve
	MGCompositeCurve is a composite of other leaf curves. [詳解]

class	MGCurve
	MGCurve is an abstract class which represents a whole curve. [詳解]

class	MGCylinder
	MGCylinder is a Cylinder in 3D space. [詳解]

class	MGEllipse
	MGEllipse is a class to define an ellipse of 2D or 3D. [詳解]

class	MGGeometry
	MGGeometry is an abstract class which represents a whole geometry. [詳解]

class	MGLBRep
	MGLBRep is a class for B-SPline representation. [詳解]

class	MGPlane
	MGPlane is infinite plane in 3D space. [詳解]

class	MGPoint
	MGPoint represents one dimensional manifold, a point in a space. [詳解]

class	MGRLBRep
	Defines Rational Line B-Representation. [詳解]

class	MGRSBRep
	Defines Surface B-Representation of rational form. [詳解]

class	MGSBRep
	Defines Surface B-Representation, that is , B-Spline surface. [詳解]

class	MGSphere
	MGSphere is a Sphere in 3D space. [詳解]

class	MGStraight
	MGStraight is a curve of any space dimension, represent a straight line. [詳解]

class	MGSurface
	MGSurface is an abstract class of 3D surface. [詳解]

class	MGSurfCurve
	MGSurfCurve is a curve on a surface. [詳解]

class	MGTrimmedCurve
	MGTrimmedCurve is a part of an original curve of a limitted parameter range. [詳解]

関数
MG_DLL_DECLR int	MGRLBRep_ellipse_weight (const MGPosition &P0, const MGVector &T0, const MGPosition &P, const MGPosition &P2, const MGVector &T2, MGPosition &P1, double &w1)

int MG_DLL_DECLR	construct_perimeters (const MGPvector< MGCurve > &peris, MGPvector< MGLBRep > &perimeters2)

MG_DLL_DECLR void	bool_sum (const MGCurve *edge_crvl[4], const MGSBRepTP &tp, int &error, MGSBRep &surf)
	construct boolean sum surface from the four perimeters and their tangent planes. [詳解]

MG_DLL_DECLR void	bool_sum (const MGCurve *edge_crvl[4], MGSBRepVecTP &vectp, int &error, MGSBRep &surf)

詳解

MGGeometry is top abstract class for MGPoint, MGCurve, and MGSurface.

関数詳解

MG_DLL_DECLR void bool_sum	(	const MGCurve *	edge_crvl[4],
		const MGSBRepTP &	tp,
		int &	error,
		MGSBRep &	surf
	)

construct boolean sum surface from the four perimeters and their tangent planes.

引数

edge_crvl	境界線リスト(vmin,umax,vmax,uminの順,辺番号0,1,2,3の順)
tp	接続面(パラメータ範囲は境界線と同じ)
error	エラーコード
surf	Constructed surf will be output.

MG_DLL_DECLR void bool_sum	(	const MGCurve *	edge_crvl[4],
		MGSBRepVecTP &	vectp,
		int &	error,
		MGSBRep &	surf
	)

引数

edge_crvl	境界線リスト(vmin,umax,vmax,uminの順,辺番号0,1,2,3の順)
vectp	接続面(パラメータ範囲は境界線と同じ)
error	エラーコード
surf	Constructed surf will be output.

int MG_DLL_DECLR construct_perimeters	(	const MGPvector< MGCurve > &	peris,
		MGPvector< MGLBRep > &	perimeters2
	)

Construct 4 perimeters, given at least two of the four. Input perimeters may have different knot configuration. In this case they will be updated so as to have the same configuration. Function's return value indicates which perimeter(s) was missing: 10: all of the 4 were input(and knot configurations were updated to have the same). 0: only perimeter 0 was missing. 1: only perimeter 1 was missing. 2: only perimeter 2 was missing. 3: only perimeter 3 was missing. 4: perimeter 2 and 3 were missing. 5: perimeter 1 and 3 were missing. 6: perimeter 1 and 2 were missing. 7: perimeter 0 and 3 were missing. 8: perimeter 0 and 2 were missing. 9: perimeter 0 and 1 were missing. -2: less than 2 perimeters were provided.

引数

peris 境界線リスト(vmin,umax,vmax,uminの順,辺番号0,1,2,3の順). Let i be the perimeter number, and the data is missing, perimeter[i] must be null. If perimeter 3 data is missing, perimeters.size() may be 3. If perimeter 2 and 3 data are missing, perimeters.size() may be 2. When perimeters were not the same knot configuration along u(perimeter 0 and 2) or along v(perimeter 3 and1), they will be rebuild to have the same configuration.

perimeters2 new perimeters will be output.

MG_DLL_DECLR int MGRLBRep_ellipse_weight	(	const MGPosition &	P0,
		const MGVector &	T0,
		const MGPosition &	P,
		const MGPosition &	P2,
		const MGVector &	T2,
		MGPosition &	P1,
		double &	w1
	)

Function to compute control point P1 and weight w1 of rational form of an ellipse segment. Pi and Ti are points and tangents of start and end for i=0,2. P is mid point of the ellipse. Function's output is if obtained(!=0:true) or not(=0:false). When obtained, =1:as finite control point, =2:as infinite. When T0, T2, P0, and P2 are not in one plane, function return 0.

(P0,1.) (P1,w1) (P2,1.) constitute the ellipse control polygon of order 3 in homogeneous form.

See "The NURBS Book" of W.Tiller and L.Piegl publised by Springer.

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詳解

関数詳解