OCC.Core.LocalAnalysis module¶
LocalAnalysis module, see official documentation at https://www.opencascade.com/doc/occt-7.4.0/refman/html/package_localanalysis.html
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class
LocalAnalysis_CurveContinuity(*args)¶ Bases:
object- -u1 is the parameter of the point on Curv1 -u2 is the parameter of the point on Curv2 -Order is the required continuity: GeomAbs_C0 GeomAbs_C1 GeomAbs_C2 GeomAbs_G1 GeomAbs_G2 //! -EpsNul is used to detect a a vector with nul magnitude (in mm) //! -EpsC0 is used for C0 continuity to confuse two points (in mm) //! -EpsC1 is an angular tolerance in radians used for C1 continuity to compare the angle between the first derivatives //! -EpsC2 is an angular tolerance in radians used for C2 continuity to compare the angle between the second derivatives //! -EpsG1 is an angular tolerance in radians used for G1 continuity to compare the angle between the tangents //! -EpsG2 is an angular tolerance in radians used for G2 continuity to compare the angle between the normals //! - percentpercentage of curvature variation (unitless) used for G2 continuity //! - Maxlen is the maximum length of Curv1 or Curv2 in meters used to detect nul curvature (in mm) //! the constructor computes the quantities which are necessary to check the continuity in the following cases: //! case C0 ——– - the distance between P1 and P2 with P1=Curv1 (u1) and P2=Curv2(u2) //! case C1 ——- //! - the angle between the first derivatives dCurv1(u1) dCurv2(u2) ——– and ——— du du //! - the ratio between the magnitudes of the first derivatives //! the angle value is between 0 and PI/2 //! case C2 ——- - the angle between the second derivatives 2 2 d Curv1(u1) d Curv2(u2) ———- ———- 2 2 du du //! the angle value is between 0 and PI/2 //! - the ratio between the magnitudes of the second derivatives //! case G1 ——- the angle between the tangents at each point //! the angle value is between 0 and PI/2 //! case G2 ——- -the angle between the normals at each point //! the angle value is between 0 and PI/2 //! - the relative variation of curvature: |curvat1-curvat2| —————— 1/2 (curvat1*curvat2) //! where curvat1 is the curvature at the first point and curvat2 the curvature at the second point
- param Curv1
- type Curv1
Geom_Curve
- param u1
- type u1
float
- param Curv2
- type Curv2
Geom_Curve
- param u2
- type u2
float
- param Order
- type Order
GeomAbs_Shape
- param EpsNul
default value is 0.001
- type EpsNul
float
- param EpsC0
default value is 0.001
- type EpsC0
float
- param EpsC1
default value is 0.001
- type EpsC1
float
- param EpsC2
default value is 0.001
- type EpsC2
float
- param EpsG1
default value is 0.001
- type EpsG1
float
- param EpsG2
default value is 0.001
- type EpsG2
float
- param Percent
default value is 0.01
- type Percent
float
- param Maxlen
default value is 10000
- type Maxlen
float
- rtype
None
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ContinuityStatus()¶ - Return type
GeomAbs_Shape
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StatusError()¶ - Return type
LocalAnalysis_StatusErrorType
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property
thisown¶ The membership flag
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class
LocalAnalysis_SurfaceContinuity(*args)¶ Bases:
object- -u1,v1 are the parameters of the point on Surf1 -u2,v2 are the parameters of the point on Surf2 -Order is the required continuity: GeomAbs_C0 GeomAbs_C1 GeomAbs_C2 GeomAbs_G1 GeomAbs_G2 //! -EpsNul is used to detect a a vector with nul magnitude //! -EpsC0 is used for C0 continuity to confuse two points (in mm) //! -EpsC1 is an angular tolerance in radians used for C1 continuity to compare the angle between the first derivatives //! -EpsC2 is an angular tolerance in radians used for C2 continuity to compare the angle between the second derivatives //! -EpsG1 is an angular tolerance in radians used for G1 continuity to compare the angle between the normals //! -Percentpercentage of curvature variation (unitless) used for G2 continuity //! - Maxlen is the maximum length of Surf1 or Surf2 in meters used to detect null curvature (in mm) //! the constructor computes the quantities which are necessary to check the continuity in the following cases: //! case C0 ——– - the distance between P1 and P2 with P1=Surf (u1,v1) and P2=Surfv2(u2,v2) //! case C1 ——- //! - the angle between the first derivatives in u//! dSurf1(u1,v1) dSurf2(u2,v2) ———– and ——— du du //! the angle value is between 0 and PI/2 //! - the angle between the first derivatives in v//! dSurf1(u1,v1) dSurf2(u2,v2) ——– and ——— dv dv //! - the ratio between the magnitudes of the first derivatives in u - the ratio between the magnitudes of the first derivatives in v //! the angle value is between 0 and pi/2 //! case C2 ——- - the angle between the second derivatives in u 2 2 d Surf1(u1,v1) d Surf2(u2,v2) ———- ———- 2 2 d u d u //! - the ratio between the magnitudes of the second derivatives in u - the ratio between the magnitudes of the second derivatives in v //! the angle value is between 0 and PI/2 //! case G1 ——- -the angle between the normals at each point the angle value is between 0 and PI/2 //! case G2 ——- - the maximum normal curvature gap between the two points
- param Surf1
- type Surf1
Geom_Surface
- param u1
- type u1
float
- param v1
- type v1
float
- param Surf2
- type Surf2
Geom_Surface
- param u2
- type u2
float
- param v2
- type v2
float
- param Order
- type Order
GeomAbs_Shape
- param EpsNul
default value is 0.001
- type EpsNul
float
- param EpsC0
default value is 0.001
- type EpsC0
float
- param EpsC1
default value is 0.001
- type EpsC1
float
- param EpsC2
default value is 0.001
- type EpsC2
float
- param EpsG1
default value is 0.001
- type EpsG1
float
- param Percent
default value is 0.01
- type Percent
float
- param Maxlen
default value is 10000
- type Maxlen
float
- rtype
None:param curv1:
- type curv1
Geom2d_Curve
- param curv2
- type curv2
Geom2d_Curve
- param U
- type U
float
- param Surf1
- type Surf1
Geom_Surface
- param Surf2
- type Surf2
Geom_Surface
- param Order
- type Order
GeomAbs_Shape
- param EpsNul
default value is 0.001
- type EpsNul
float
- param EpsC0
default value is 0.001
- type EpsC0
float
- param EpsC1
default value is 0.001
- type EpsC1
float
- param EpsC2
default value is 0.001
- type EpsC2
float
- param EpsG1
default value is 0.001
- type EpsG1
float
- param Percent
default value is 0.01
- type Percent
float
- param Maxlen
default value is 10000
- type Maxlen
float
- rtype
None* This constructor is used when we want to compute many analysis. After we use the method ComputeAnalysis
- param EpsNul
default value is 0.001
- type EpsNul
float
- param EpsC0
default value is 0.001
- type EpsC0
float
- param EpsC1
default value is 0.001
- type EpsC1
float
- param EpsC2
default value is 0.001
- type EpsC2
float
- param EpsG1
default value is 0.001
- type EpsG1
float
- param Percent
default value is 0.01
- type Percent
float
- param Maxlen
default value is 10000
- type Maxlen
float
- rtype
None
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ComputeAnalysis()¶ - Parameters
Surf1 –
- type Surf1
GeomLProp_SLProps
- param Surf2
- type Surf2
GeomLProp_SLProps
- param Order
- type Order
GeomAbs_Shape
- rtype
None
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ContinuityStatus()¶ - Return type
GeomAbs_Shape
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StatusError()¶ - Return type
LocalAnalysis_StatusErrorType
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property
thisown¶ The membership flag
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class
SwigPyIterator(*args, **kwargs)¶ Bases:
object-
advance()¶
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copy()¶
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decr()¶
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distance()¶
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equal()¶
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incr()¶
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next()¶
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previous()¶
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property
thisown¶ The membership flag
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value()¶
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class
localanalysis¶ Bases:
object-
static
Dump()¶ - This class compute s and gives tools to check the local continuity between two points situated on 2 curves) //! This fonction gives informations about a variable CurveContinuity
- param surfconti
- type surfconti
LocalAnalysis_SurfaceContinuity
- param o
- type o
Standard_OStream
- rtype
void* This fonction gives informations about a variable SurfaceContinuity
- param curvconti
- type curvconti
LocalAnalysis_CurveContinuity
- param o
- type o
Standard_OStream
- rtype
void
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property
thisown¶ The membership flag
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static