dev/html/MRMeshC_2MRMeshProject_8h_source.html

#pragma once


#include "MRMeshFwd.h"

#include "MRAffineXf.h"

#include "MRMeshPart.h"

#include "MRMeshTriPoint.h"

#include "MRPointOnFace.h"


MR_EXTERN_C_BEGIN


typedef struct MRMeshProjectionResult

{

    MRPointOnFace proj;

    MRMeshTriPoint mtp;

    float distSq;

} MRMeshProjectionResult;


typedef struct MRFindProjectionParameters

{

    float upDistLimitSq;

    const MRAffineXf3f* xf;

    float loDistLimitSq;

    // TODO: validFaces

    // TODO: validProjections

} MRFindProjectionParameters;


MRMESHC_API MRFindProjectionParameters mrFindProjectionParametersNew( void );


MRMESHC_API MRMeshProjectionResult mrFindProjection( const MRVector3f* pt, const MRMeshPart* mp, const MRFindProjectionParameters* params );


MR_EXTERN_C_END

MRAffineXf.h

MRMeshFwd.h

MR_EXTERN_C_BEGIN
#define MR_EXTERN_C_BEGIN
Definition MRMeshC/MRMeshFwd.h:26

MR_EXTERN_C_END
#define MR_EXTERN_C_END
Definition MRMeshC/MRMeshFwd.h:27

MRMESHC_API
#define MRMESHC_API
Definition MRMeshC/MRMeshFwd.h:19

MRMeshPart.h

MRMeshProjectionResult
MR_EXTERN_C_BEGIN struct MRMeshProjectionResult MRMeshProjectionResult

mrFindProjectionParametersNew
MRMESHC_API MRFindProjectionParameters mrFindProjectionParametersNew(void)
creates a default instance

MRFindProjectionParameters
struct MRFindProjectionParameters MRFindProjectionParameters
optional parameters for mrFindProjection

mrFindProjection
MRMESHC_API MRMeshProjectionResult mrFindProjection(const MRVector3f *pt, const MRMeshPart *mp, const MRFindProjectionParameters *params)
computes the closest point on mesh (or its region) to given point

MRMeshTriPoint.h

MRPointOnFace.h

MRAffineXf3f
affine transformation: y = A*x + b, where A in VxV, and b in V
Definition MRMeshC/MRAffineXf.h:10

MRFindProjectionParameters
optional parameters for mrFindProjection
Definition MRMeshC/MRMeshProject.h:23

MRFindProjectionParameters::xf
const MRAffineXf3f * xf
mesh-to-point transformation, if not specified then identity transformation is assumed
Definition MRMeshC/MRMeshProject.h:27

MRFindProjectionParameters::upDistLimitSq
float upDistLimitSq
upper limit on the distance in question, if the real distance is larger than the function exits retur...
Definition MRMeshC/MRMeshProject.h:25

MRFindProjectionParameters::loDistLimitSq
float loDistLimitSq
low limit on the distance in question, if a point is found within this distance then it is immediatel...
Definition MRMeshC/MRMeshProject.h:29

MRMeshPart
stores reference on whole mesh (if region is NULL) or on its part (if region pointer is valid)
Definition MRMeshC/MRMeshPart.h:9

MRMeshProjectionResult
Definition MRMeshC/MRMeshProject.h:12

MRMeshProjectionResult::proj
MRPointOnFace proj
the closest point on mesh, transformed by xf if it is given
Definition MRMeshC/MRMeshProject.h:14

MRMeshProjectionResult::mtp
MRMeshTriPoint mtp
its barycentric representation
Definition MRMeshC/MRMeshProject.h:16

MRMeshProjectionResult::distSq
float distSq
squared distance from pt to proj
Definition MRMeshC/MRMeshProject.h:18

MRMeshTriPoint
Definition MRMeshC/MRMeshTriPoint.h:15

MRPointOnFace
Definition MRMeshC/MRPointOnFace.h:11

MRVector3f
three-dimensional vector
Definition MRMeshC/MRVector3.h:9