GEORelated

クラス
class	MGCoons
	Defines Coons Patch surface. [詳解]
class	MGCurveContinuity
	Curve continuity measuring class. [詳解]
class	MGFPline
	Face's (u,v) parameter value line. [詳解]
class	MGFPoint
	MGFPoint is to represent a Face or Surface point. [詳解]
class	MGLBRepEndC
	Defines End Condition of Line B-Representation. [詳解]
class	MGOscuCircle
	Defines Array of OscuCircle data. [詳解]
class	MGOscuCircleData
	The class for MGLBRep constructor of osculating circles. [詳解]
class	MGPPRep
	Defines PP-Represetation of a spline. [詳解]
class	MGSBRepEndC
	Defines End Condition of Surface B-Representation. [詳解]
class	MGSBRepTP
	Defines Tangent Plane Line B-Representation Class. [詳解]
class	MGSBRepVecTP
	Defines Tangent Plane Line B-Representation Class. [詳解]

列挙型
enum	MGCurveContinuity::CONTINUITY { MGCurveContinuity::DISCONT =-1, MGCurveContinuity::G0 =0, MGCurveContinuity::G1, MGCurveContinuity::G2 }
	enumeration to represent geometric continuity [詳解]

関数
MG_DLL_DECLR MGVector	eval (const MGFPoint &uv, int ndu=0, int ndv=0)
	Evaluate face's (shell's) point from the MGFPoint. [詳解]
MG_DLL_DECLR MGVector	normal (const MGFPoint &uv)
	Compute normal vector(not unit) at uv. [詳解]
MG_DLL_DECLR MGUnit_vector	unit_normal (const MGFPoint &uv)
	Compute unit normal vector at uv. [詳解]
MG_DLL_DECLR MGLBRep	TP_from_world_curve (const MGSurface &srf, const MGCurve &wcrv, int order, int &error)
MG_DLL_DECLR MGLBRep	TP_from_parameter_curve (const MGSurface &srf, const MGCurve &pcrv, const MGCurve &wcrv, int order, int &error)

詳解

列挙型詳解

enum MGCurveContinuity::CONTINUITY

enumeration to represent geometric continuity

列挙値
DISCONT	means not continuous
G0	means G0 continuity
G1	means G1 continuity
G2	means G2 continuity

関数詳解

MG_DLL_DECLR MGVector eval	(	const MGFPoint &	uv,
		int	ndu = 0,
		int	ndv = 0
	)

Evaluate face's (shell's) point from the MGFPoint.

引数

uv	Face point.
ndv	Order of derivative along u and v direction.

MG_DLL_DECLR MGVector normal

(

const MGFPoint &

uv

)

Compute normal vector(not unit) at uv.

MG_DLL_DECLR MGLBRep TP_from_parameter_curve	(	const MGSurface &	srf,
		const MGCurve &	pcrv,
		const MGCurve &	wcrv,
		int	order,
		int &	error
	)

Construct a tangent plane LBRep of a curve pcrv. pcrv is a parameter coordinate curve of a surface srf. wcrv is a target curve that lies on the surface srf, is world coordinate representation of pcrv. Output MGLBRep's parameter is Let f(t) be wcrv whose parameter is t. Then the parameter of this function's output is the same as t. Let g(t) be the output, then g(t)=normal at srf(u,v). where srf(u,v)=f(t). pcrvは接続しようとしている曲面の(u,v)表現による２次元の曲線で、 曲線が２曲線に分かれているような場合、接続して一つの曲線として、 次のwcrvとおなじ範囲を表現する曲線に変換して入力します。 wcrvは４辺面の１辺となる曲線で(x,y,z)の世界座標表現です。

引数

srf	接続面
pcrv	接続曲線(接続面上のパラメータカーブ)
wcrv	接続曲線(世界座標上のカーブ)
order	作成するカーブのオーダ
error	エラーコード 0:OK, !=0 error code when constructing LBRep.

MG_DLL_DECLR MGLBRep TP_from_world_curve	(	const MGSurface &	srf,
		const MGCurve &	wcrv,
		int	order,
		int &	error
	)

Construct a tangent plane LBRep of a curve wcrv. wcrv is a world coordinate curve that lies on a surface srf. TP_from_world_curve is for the users who do not know the parameter representation of wcrv of the surface srf. If you know the parameter representation of wcrv, you should use TP_from_parameter_curve. TP_from_parameter_curve's computation time is much smaller than TP_from_world_curve's. Let f(t) be wcrv whose parameter is t. Then the parameter of this function's output is the same as t. Let g(t) be the output, then g(t)=normal at srf(u,v). where srf(u,v)=f(t).

引数

srf	接続面
wcrv	接続曲線
order	作成するカーブのオーダ
error	エラーコード 0:OK, !=0 error code when constructing LBRep.

MG_DLL_DECLR MGUnit_vector unit_normal

(

const MGFPoint &

uv

)

Compute unit normal vector at uv.