OCC.LProp3d module¶

Handles local properties of curves and surfaces from thepackage Adaptor3d.SeeAlso: Package LProp.

class LProp3d_CLProps(*args)¶

Bases: object

Parameters:	C (Handle_Adaptor3d_HCurve &) – N (int) – Resolution (float) – C – U (float) – N – Resolution – N – Resolution –
Return type:	None
Return type:	None
Return type:	None

CentreOfCurvature()¶

Parameters:	P (gp_Pnt) –
Return type:	None

Curvature()¶

Return type:	float

D1()¶

Return type:	gp_Vec

D2()¶

Return type:	gp_Vec

D3()¶

Return type:	gp_Vec

IsTangentDefined()¶

Return type:	bool

Normal()¶

Parameters:	N (gp_Dir) –
Return type:	None

SetCurve()¶

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	None

SetParameter()¶

Parameters:	U (float) –
Return type:	None

Tangent()¶

Parameters:	D (gp_Dir) –
Return type:	None

Value()¶

Return type:	gp_Pnt

thisown¶: The membership flag

class LProp3d_CurveTool¶

Bases: object

static Continuity()¶

returns the order of continuity of the HCurve <C>. returns 1 : first derivative only is computable returns 2 : first and second derivative only are computable. returns 3 : first, second and third are computable.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	int

static D1()¶

Computes the point and first derivative <V1> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) –
Return type:	void

static D2()¶

Computes the point , the first derivative <V1> and second derivative <V2> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) – V2 (gp_Vec) –
Return type:	void

static D3()¶

Computes the point , the first derivative <V1>, the second derivative <V2> and third derivative <V3> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) – V2 (gp_Vec) – V3 (gp_Vec) –
Return type:	void

static FirstParameter()¶

returns the first parameter bound of the HCurve.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	float

static LastParameter()¶

returns the last parameter bound of the HCurve. FirstParameter must be less than LastParamenter.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	float

static Value()¶

Computes the point of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) –
Return type:	void

thisown¶: The membership flag

LProp3d_CurveTool_Continuity()¶

returns the order of continuity of the HCurve <C>. returns 1 : first derivative only is computable returns 2 : first and second derivative only are computable. returns 3 : first, second and third are computable.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	int

LProp3d_CurveTool_D1()¶

Computes the point and first derivative <V1> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) –
Return type:	void

LProp3d_CurveTool_D2()¶

Computes the point , the first derivative <V1> and second derivative <V2> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) – V2 (gp_Vec) –
Return type:	void

LProp3d_CurveTool_D3()¶

Computes the point , the first derivative <V1>, the second derivative <V2> and third derivative <V3> of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) – V1 (gp_Vec) – V2 (gp_Vec) – V3 (gp_Vec) –
Return type:	void

LProp3d_CurveTool_FirstParameter()¶

returns the first parameter bound of the HCurve.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	float

LProp3d_CurveTool_LastParameter()¶

returns the last parameter bound of the HCurve. FirstParameter must be less than LastParamenter.

Parameters:	C (Handle_Adaptor3d_HCurve &) –
Return type:	float

LProp3d_CurveTool_Value()¶

Computes the point of parameter on the HCurve <C>.

Parameters:	C (Handle_Adaptor3d_HCurve &) – U (float) – P (gp_Pnt) –
Return type:	void

class LProp3d_SLProps(*args)¶

Bases: object

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – N (int) – Resolution (float) – S – N – Resolution – N – Resolution –
Return type:	None
Return type:	None
Return type:	None

CurvatureDirections()¶

Parameters:	MaxD (gp_Dir) – MinD (gp_Dir) –
Return type:	None

D1U()¶

Return type:	gp_Vec

D1V()¶

Return type:	gp_Vec

D2U()¶

Return type:	gp_Vec

D2V()¶

Return type:	gp_Vec

DUV()¶

Return type:	gp_Vec

GaussianCurvature()¶

Return type:	float

IsCurvatureDefined()¶

Return type:	bool

IsNormalDefined()¶

Return type:	bool

IsTangentUDefined()¶

Return type:	bool

IsTangentVDefined()¶

Return type:	bool

IsUmbilic()¶

Return type:	bool

MaxCurvature()¶

Return type:	float

MeanCurvature()¶

Return type:	float

MinCurvature()¶

Return type:	float

Normal()¶

Return type:	gp_Dir

SetParameters()¶

Parameters:	U (float) – V (float) –
Return type:	None

SetSurface()¶

Parameters:	S (Handle_Adaptor3d_HSurface &) –
Return type:	None

TangentU()¶

Parameters:	D (gp_Dir) –
Return type:	None

TangentV()¶

Parameters:	D (gp_Dir) –
Return type:	None

Value()¶

Return type:	gp_Pnt

thisown¶: The membership flag

class LProp3d_SurfaceTool¶

Bases: object

static Bounds()¶

returns the bounds of the HSurface.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U1 (float &) – V1 (float &) – U2 (float &) – V2 (float &) –
Return type:	void

static Continuity()¶

returns the order of continuity of the HSurface <S>. returns 1 : first derivative only is computable returns 2 : first and second derivative only are computable.

Parameters:	S (Handle_Adaptor3d_HSurface &) –
Return type:	int

static D1()¶

Computes the point and first derivative <D1*> of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) – D1U (gp_Vec) – D1V (gp_Vec) –
Return type:	void

static D2()¶

Computes the point , the first derivative <D1*> and second derivative <D2*> of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) – D1U (gp_Vec) – D1V (gp_Vec) – D2U (gp_Vec) – D2V (gp_Vec) – DUV (gp_Vec) –
Return type:	void

static DN()¶

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – IU (int) – IV (int) –
Return type:	gp_Vec

static Value()¶

Computes the point of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) –
Return type:	void

thisown¶: The membership flag

LProp3d_SurfaceTool_Bounds()¶

returns the bounds of the HSurface.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U1 (float &) – V1 (float &) – U2 (float &) – V2 (float &) –
Return type:	void

LProp3d_SurfaceTool_Continuity()¶

returns the order of continuity of the HSurface <S>. returns 1 : first derivative only is computable returns 2 : first and second derivative only are computable.

Parameters:	S (Handle_Adaptor3d_HSurface &) –
Return type:	int

LProp3d_SurfaceTool_D1()¶

Computes the point and first derivative <D1*> of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) – D1U (gp_Vec) – D1V (gp_Vec) –
Return type:	void

LProp3d_SurfaceTool_D2()¶

Computes the point , the first derivative <D1*> and second derivative <D2*> of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) – D1U (gp_Vec) – D1V (gp_Vec) – D2U (gp_Vec) – D2V (gp_Vec) – DUV (gp_Vec) –
Return type:	void

LProp3d_SurfaceTool_DN()¶

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – IU (int) – IV (int) –
Return type:	gp_Vec

LProp3d_SurfaceTool_Value()¶

Computes the point of parameter and <V> on the HSurface <S>.

Parameters:	S (Handle_Adaptor3d_HSurface &) – U (float) – V (float) – P (gp_Pnt) –
Return type:	void

class SwigPyIterator(*args, **kwargs)¶

Bases: object

advance()¶

copy()¶

decr()¶

distance()¶

equal()¶

incr()¶

next()¶

previous()¶

thisown¶: The membership flag

value()¶

new_instancemethod(func, inst, cls)¶

register_handle(handle, base_object)¶: Inserts the handle into the base object to prevent memory corruption in certain cases