MRRelaxParams.h

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#pragma once
 
#include "MRVector3.h"
#include "MRVectorTraits.h"
#include <cassert>
 
namespace MR
{
 
struct RelaxParams
{
    int iterations = 1;
 
    const VertBitSet *region = nullptr;
 
    float force = 0.5f;
 
    bool limitNearInitial = false;
 
    float maxInitialDist = 0;
};
 
enum class RelaxApproxType
{
    Planar,
    Quadric,
};
 
template <typename V>
[[nodiscard]] inline V getLimitedPos( const V & pos, const V & guidePos, typename VectorTraits<V>::BaseType maxGuideDistSq )
{
    assert( maxGuideDistSq > 0 );
    const auto d = pos - guidePos;
    float distSq = sqr( d );
    if ( distSq <= maxGuideDistSq )
        return pos;
    return guidePos + std::sqrt( maxGuideDistSq / distSq ) * d;
}
 
} // namespace MR