MRProjectionMeshAttribute.h

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#pragma once
 
#include "MRMesh.h"
#include "MRBitSetParallelFor.h"
#include "MRMeshProject.h"
#include "MRMeshAttributesToUpdate.h"
 
namespace MR
{
 
// projecting the vertex attributes of the old onto the new one
// returns false if canceled by progress bar
template<typename F>
bool projectVertAttribute( const Mesh& newMesh, const Mesh& oldMesh, F&& func, ProgressCallback progressCb );
 
// projecting the face attributes of the old onto the new one
// returns false if canceled by progress bar
template<typename F>
bool projectFaceAttribute( const Mesh& newMesh, const Mesh& oldMesh, F&& func, ProgressCallback progressCb );
 
 
template<typename F>
bool projectVertAttribute( const Mesh& newMesh, const Mesh& oldMesh, F&& func, ProgressCallback progressCb )
{
    return BitSetParallelFor( newMesh.topology.getValidVerts(), [&] ( VertId id )
        {
            auto projectionResult = findProjection( newMesh.points[id], oldMesh );
            auto res = projectionResult.mtp;
            VertId v1 = oldMesh.topology.org( res.e );
            VertId v2 = oldMesh.topology.dest( res.e );
            VertId v3 = oldMesh.topology.dest( oldMesh.topology.next( res.e ) );
            func( id, projectionResult, v1, v2, v3 );
        },
    progressCb );
}
 
template<typename F>
bool projectFaceAttribute( const Mesh& newMesh, const Mesh& oldMesh, F&& func, ProgressCallback progressCb )
{
    return BitSetParallelFor( newMesh.topology.getValidFaces(), [&] ( FaceId newFaceId )
    {
        auto projectionResult = findProjection( newMesh.triCenter( newFaceId ), oldMesh );
        func( newFaceId, projectionResult );
    },
    progressCb );
}
 
}