MRMarkedContour.h

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#pragma once
 
#include "MRBitSet.h"
#include "MRMeshFwd.h"
#include "MRVector3.h"
 
namespace MR
{
 
struct MarkedContour3f
{
    Contour3f contour;
    BitSet marks; 
};
 
[[nodiscard]] inline bool isClosed( const Contour3f& c ) { return c.size() > 1 && c.front() == c.back(); }
 
[[nodiscard]] inline MarkedContour3f markedContour( Contour3f in )
{
    const auto sz = in.size();
    return MarkedContour3f{ .contour = std::move( in ), .marks = BitSet( sz, true ) };
}
 
[[nodiscard]] inline MarkedContour3f markedFirstLast( Contour3f in )
{
    const auto sz = in.size();
    MarkedContour3f res{ .contour = std::move( in ), .marks = BitSet( sz, false ) };
    res.marks.set( 0 );
    res.marks.set( sz - 1 );
    return res;
}
 
[[nodiscard]] MRMESH_API MarkedContour3f resample( const MarkedContour3f & in, float minStep, Contour3f * normals = nullptr );
 
[[nodiscard]] MRMESH_API MarkedContour3f makeSpline( MarkedContour3f in, float markStability = 1, const Contour3f * normals = nullptr );
 
[[nodiscard]] MRMESH_API MarkedContour3f makeSpline( MarkedContour3f in, const Contour3f & normals, float markStability = 1 );
 
struct SplineSettings
{
    float samplingStep = 1;
 
    float controlStability = 1;
 
    int iterations = 1;
 
    Contour3f * normals = nullptr;
 
    bool normalsAffectShape = false;
};
 
[[nodiscard]] MRMESH_API MarkedContour3f makeSpline( const Contour3f & controlPoints, const SplineSettings & settings );
 
} //namespace MR