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![](../../img/icon/FitCircleToEdge.png)
FitCircleToEdges3D
Header: | AVL.h |
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Namespace: | avl |
Module: | Vision3DStandard |
Performs a series of 1D edge detections and finds a circle that best matches the detected points.
Applications: Precise detection of a circular object or hole, whose rough location is known beforehand.
Syntax
C++
C#
void avl::FitCircleToEdges3D ( const avl::Surface& inSurface, const CircleFittingMap& inFittingMap, const EdgeScanParams3D& inEdgeScanParams, avl::Selection::Type inEdgeSelection, atl::Optional<const avl::LocalBlindness&> inLocalBlindness, atl::Optional<int> inMaxProfileGapWidth, float inMaxIncompleteness, avl::CircleFittingMethod::Type inFittingMethod, atl::Optional<avl::MEstimator::Type> inOutlierSuppression, atl::Conditional<avl::Circle3D>& outCircle, atl::Optional<atl::Array<atl::Conditional<avl::SurfaceEdge1D>>&> outEdges = atl::NIL, atl::Optional<atl::Conditional<avl::Profile>&> outDeviationProfile = atl::NIL, atl::Optional<atl::Array<avl::Point3D>&> outInliers = atl::NIL, atl::Optional<atl::Array<avl::Profile>&> outHeightProfiles = atl::NIL, atl::Optional<atl::Array<avl::Profile>&> outResponseProfiles = atl::NIL )
Parameters
Name | Type | Range | Default | Description | |
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inSurface | const Surface& | Surface to fit the circle to | ||
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inFittingMap | const CircleFittingMap& | Input fitting map | ||
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inEdgeScanParams | const EdgeScanParams3D& | Parameters controlling the edge extraction process | ||
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inEdgeSelection | Selection::Type | SelectionBest | Selection mode of edges | |
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inLocalBlindness | Optional<const LocalBlindness&> | NIL | Defines conditions in which weaker edges can be detected in the vicinity of stronger edges | |
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inMaxProfileGapWidth | Optional<int> | 0 - ![]() |
1 | Maximal number of consecutive not existing profile points |
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inMaxIncompleteness | float | 0.0 - 0.999 | 0.1f | Maximal fraction of edge points not found |
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inFittingMethod | CircleFittingMethod::Type | AlgebraicTaubin | Method used to fit a circle | |
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inOutlierSuppression | Optional<MEstimator::Type> | NIL | Selects a method for ignoring incorrectly detected points | |
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outCircle | Conditional<Circle3D>& | Fitted circle or nothing if the fitting fails | ||
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outEdges | Optional<Array<Conditional<SurfaceEdge1D>>&> | NIL | Found edges | |
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outDeviationProfile | Optional<Conditional<Profile>&> | NIL | Profile of distances between the actual circle points and the corresponding reference circle points | |
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outInliers | Optional<Array<Point3D>&> | NIL | Points matching the fitting Circle | |
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outHeightProfiles | Optional<Array<Profile>&> | NIL | Extracted surface height profiles | |
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outResponseProfiles | Optional<Array<Profile>&> | NIL | Profiles of the edge (derivative) operator response |
Optional Outputs
The computation of following outputs can be switched off by passing value atl::NIL
to these parameters: outEdges, outDeviationProfile, outInliers, outHeightProfiles, outResponseProfiles.
Read more about Optional Outputs.
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.