MRPolylineDecimate.h

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#pragma once
 
#include "MRMeshFwd.h"
#include <cfloat>
#include <climits>
#include <functional>
 
namespace MR
{
 

template<typename V>
struct DecimatePolylineSettings
{
    float maxError = 0.001f;

    float maxEdgeLen = FLT_MAX;

    float stabilizer = 0.001f;

    bool optimizeVertexPos = true;

    int maxDeletedVertices = INT_MAX;

    VertBitSet* region = nullptr;

    bool touchBdVertices = true;

    std::function<bool( EdgeId edgeToCollapse, const V & newEdgeOrgPos )> preCollapse;

    std::function<void( UndirectedEdgeId ue, float & collapseErrorSq, V & collapsePos )> adjustCollapse;

    Vector<QuadraticForm<V>, VertId>* vertForms = nullptr;
};
 
using DecimatePolylineSettings2 = DecimatePolylineSettings<Vector2f>;
using DecimatePolylineSettings3 = DecimatePolylineSettings<Vector3f>;

struct DecimatePolylineResult
{
    int vertsDeleted = 0; 
    float errorIntroduced = 0; 
};

MRMESH_API DecimatePolylineResult decimatePolyline( Polyline2& polyline, const DecimatePolylineSettings2& settings = {} );
MRMESH_API DecimatePolylineResult decimatePolyline( Polyline3& polyline, const DecimatePolylineSettings3& settings = {} );

MRMESH_API DecimatePolylineResult decimateContour( Contour2f& contour, const DecimatePolylineSettings2& settings = {} );
MRMESH_API DecimatePolylineResult decimateContour( Contour3f& contour, const DecimatePolylineSettings3& settings = {} );
 
}