OCC.GeomLProp module¶

These global functions compute the degree ofcontinuity of a 3D curve built by concatenation of twoother curves (or portions of curves) at their junction point.

class GeomLProp_CLProps(*args)¶

Bases: object

Parameters:	C (Handle_Geom_Curve &) – 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_Geom_Curve &) –
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 GeomLProp_CurveTool¶

Bases: object

static Continuity()¶

returns the order of continuity of the curve <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_Geom_Curve &) –
Return type:	int

static D1()¶

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

Parameters:	C (Handle_Geom_Curve &) – 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 curve <C>.

Parameters:	C (Handle_Geom_Curve &) – 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 curve <C>.

Parameters:	C (Handle_Geom_Curve &) – 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 curve.

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

static LastParameter()¶

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

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

static Value()¶

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

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

thisown¶: The membership flag

GeomLProp_CurveTool_Continuity()¶

returns the order of continuity of the curve <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_Geom_Curve &) –
Return type:	int

GeomLProp_CurveTool_D1()¶

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

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

GeomLProp_CurveTool_D2()¶

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

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

GeomLProp_CurveTool_D3()¶

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

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

GeomLProp_CurveTool_FirstParameter()¶

returns the first parameter bound of the curve.

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

GeomLProp_CurveTool_LastParameter()¶

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

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

GeomLProp_CurveTool_Value()¶

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

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

class GeomLProp_SLProps(*args)¶

Bases: object

Parameters:	S (Handle_Geom_Surface &) – 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_Geom_Surface &) –
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 GeomLProp_SurfaceTool¶

Bases: object

static Bounds()¶

returns the bounds of the Surface.

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

static Continuity()¶

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

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

static D1()¶

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

Parameters:	S (Handle_Geom_Surface &) – 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 Surface <S>.

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

static Value()¶

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

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

thisown¶: The membership flag

GeomLProp_SurfaceTool_Bounds()¶

returns the bounds of the Surface.

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

GeomLProp_SurfaceTool_Continuity()¶

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

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

GeomLProp_SurfaceTool_D1()¶

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

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

GeomLProp_SurfaceTool_D2()¶

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

Parameters:	S (Handle_Geom_Surface &) – 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

GeomLProp_SurfaceTool_DN()¶

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

GeomLProp_SurfaceTool_Value()¶

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

Parameters:	S (Handle_Geom_Surface &) – 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()¶

class geomlprop¶

Bases: object

static Continuity()¶

Computes the regularity at the junction between C1 and C2. The booleans r1 and r2 are true if the curves must be taken reversed. The point u1 on C1 and the point u2 on C2 must be confused. tl and ta are the linear and angular tolerance used two compare the derivative.

Parameters:	C1 (Handle_Geom_Curve &) – C2 (Handle_Geom_Curve &) – u1 (float) – u2 (float) – r1 (bool) – r2 (bool) – tl (float) – ta (float) –
Return type:	GeomAbs_Shape

The same as preciding but using the standard tolerances from package Precision.

Parameters:	C1 (Handle_Geom_Curve &) – C2 (Handle_Geom_Curve &) – u1 (float) – u2 (float) – r1 (bool) – r2 (bool) –
Return type:	GeomAbs_Shape

thisown¶: The membership flag

geomlprop_Continuity()¶

Computes the regularity at the junction between C1 and C2. The booleans r1 and r2 are true if the curves must be taken reversed. The point u1 on C1 and the point u2 on C2 must be confused. tl and ta are the linear and angular tolerance used two compare the derivative.

Parameters:	C1 (Handle_Geom_Curve &) – C2 (Handle_Geom_Curve &) – u1 (float) – u2 (float) – r1 (bool) – r2 (bool) – tl (float) – ta (float) –
Return type:	GeomAbs_Shape

The same as preciding but using the standard tolerances from package Precision.

Parameters:	C1 (Handle_Geom_Curve &) – C2 (Handle_Geom_Curve &) – u1 (float) – u2 (float) – r1 (bool) – r2 (bool) –
Return type:	GeomAbs_Shape

new_instancemethod(func, inst, cls)¶

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