MRMesh/MRMeshProject.h

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#pragma once
 
#include "MRPointOnFace.h"
#include "MRMeshTriPoint.h"
#include "MRMeshPart.h"
#include "MREnums.h"
#include <cfloat>
#include <optional>
#include <functional>
 
namespace MR
{
 
 
struct MeshProjectionResult
{
    PointOnFace proj;
    MeshTriPoint mtp;
    float distSq = 0;
};
 
[[nodiscard]] MRMESH_API MeshProjectionResult findProjection( const Vector3f & pt, const MeshPart & mp,
    float upDistLimitSq = FLT_MAX,
    const AffineXf3f * xf = nullptr,
    float loDistLimitSq = 0,
    const FacePredicate & validFaces = {},
    const std::function<bool(const MeshProjectionResult&)> & validProjections = {} );
 
[[nodiscard]] MRMESH_API MeshProjectionResult findProjectionSubtree( const Vector3f & pt,
    const MeshPart & mp, const AABBTree & tree,
    float upDistLimitSq = FLT_MAX,
    const AffineXf3f * xf = nullptr,
    float loDistLimitSq = 0,
    const FacePredicate & validFaces = {},
    const std::function<bool(const MeshProjectionResult&)> & validProjections = {} );
 
struct Ball
{
    Vector3f center;
    float radiusSq = 0;
};
 
using FoundTriCallback = std::function<Processing( const MeshProjectionResult & found, Ball & ball )>;
 
MRMESH_API void findTrisInBall( const MeshPart & mp, Ball ball, const FoundTriCallback& foundCallback, const FacePredicate & validFaces = {} );
 
struct SignedDistanceToMeshResult
{
    PointOnFace proj;
    MeshTriPoint mtp;
    float dist = 0;
};
 
[[nodiscard]] MRMESH_API std::optional<SignedDistanceToMeshResult> findSignedDistance( const Vector3f & pt, const MeshPart & mp,
    float upDistLimitSq = FLT_MAX, float loDistLimitSq = 0 );
 
 
} // namespace MR