ecvContourExtractor.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// CV_DB_LIB
#include <ecvPolyline.h>
 
// cloudViewer
#include <PointProjectionTools.h>
 
class ccContourExtractor {
public:
    enum ContourType { LOWER, UPPER, FULL };
 
 
    static ccPolyline* ExtractFlatContour(
            cloudViewer::GenericIndexedCloudPersist* points,
            bool allowMultiPass,
            PointCoordinateType maxEdgeLength = 0,
            const PointCoordinateType* preferredNormDim = 0,
            const PointCoordinateType* preferredUpDir = 0,
            ContourType contourType = FULL,
            std::vector<unsigned>* originalPointIndexes = 0,
            bool enableVisualDebugMode = false,
            double maxAngleDeg = 0.0);
 
 
    static bool ExtractFlatContour(
            cloudViewer::GenericIndexedCloudPersist* points,
            bool allowMultiPass,
            PointCoordinateType maxEdgeLength,
            std::vector<ccPolyline*>& parts,
            bool allowSplitting = true,
            const PointCoordinateType* preferredNormDim = 0,
            bool enableVisualDebugMode = false);
 
protected:
 
    static bool ExtractConcaveHull2D(
            std::vector<cloudViewer::PointProjectionTools::IndexedCCVector2>&
                    points,
            std::list<cloudViewer::PointProjectionTools::IndexedCCVector2*>&
                    hullPoints,
            ContourType contourType,
            bool allowMultiPass,
            PointCoordinateType maxSquareLength = 0,
            bool enableVisualDebugMode = false,
            double maxAngleDeg = 90.0);
};