//----------------------------------------------------------------------------
//  EgalTech 2018-2018
//----------------------------------------------------------------------------
// File : EXE_GeoDist.cpp       Data : 15.12.18        Versione : 1.9l
// Contenuto : Funzioni di distanza tra oggetto geometrici per EXE.
//
//
//
// Modifiche : 15.12.18 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "EXE.h"
#include "EXE_Const.h"
#include "EXE_Macro.h"
#include "AuxTools.h"
#include "GeoTools.h"
#include "/EgtDev/Include/EXeExecutor.h"
#include "/EgtDev/Include/EGkDistPointCurve.h"
#include "/EgtDev/Include/EGkDistPointSurfTm.h"
#include "/EgtDev/Include/EGkDistPointSurfBz.h"

using namespace std ;

//----------------------------------------------------------------------------
bool
ExePointCurveDist( const Point3d& ptP, int nCurveId, int nRefType,
                   double* pdDist, Point3d& ptMin, double* pdU)
{
   IGeomDB* pGeomDB = GetCurrGeomDB() ;
   VERIFY_GEOMDB( pGeomDB, false)
  // verifico il primo parametro di ritorno obbligatorio
   if ( pdDist == nullptr)
      return false ;
  // recupero la curva
   ICurve* pCurve = GetCurve( pGeomDB->GetGeoObj( nCurveId)) ;
   if ( pCurve == nullptr)
      return false ;
  // recupero il suo riferimento globale
   Frame3d frCurve ;
   if ( ! pGeomDB->GetGlobFrame( nCurveId, frCurve))
      return false ;
  // porto il punto nel riferimento della curva
   Point3d ptPL = GetPointLocal( pGeomDB, ptP, nRefType, frCurve) ;
  // calcolo la minima distanza
   DistPointCurve distPC( ptPL, *pCurve) ;
  // recupero i risultati
   if ( ! distPC.GetDist( *pdDist))
      return false ;
   MinDistPCInfo aInfo ;
   if ( ! distPC.GetMinDistInfo( 0, aInfo))
      return false ;
   if ( &ptMin != nullptr) 
      ptMin = GetPointInRef( pGeomDB, aInfo.ptQ, frCurve, nRefType) ;
   if ( pdU != nullptr)
      *pdU = aInfo.dPar ;
   return true ;
}

//----------------------------------------------------------------------------
bool
ExePointCurveDistSide( const Point3d& ptP, int nCurveId, const Vector3d& vtN, int nRefType,
                       double* pdDist, Point3d& ptMin, int* pnSide)
{
   IGeomDB* pGeomDB = GetCurrGeomDB() ;
   VERIFY_GEOMDB( pGeomDB, false)
  // verifico i parametri di ritorno
   if ( pdDist == nullptr  ||  &ptMin == nullptr  ||  pnSide == nullptr)
      return false ;
  // recupero la curva
   ICurve* pCurve = GetCurve( pGeomDB->GetGeoObj( nCurveId)) ;
   if ( pCurve == nullptr)
      return false ;
  // recupero il suo riferimento globale
   Frame3d frCurve ;
   if ( ! pGeomDB->GetGlobFrame( nCurveId, frCurve))
      return false ;
  // porto il punto e la normale nel riferimento della curva
   Point3d ptPL = GetPointLocal( pGeomDB, ptP, nRefType, frCurve) ;
   Vector3d vtNL = GetVectorLocal( pGeomDB, vtN, nRefType, frCurve) ;
  // calcolo la minima distanza
   DistPointCurve distPC( ptPL, *pCurve) ;
  // recupero i risultati
   if ( ! distPC.GetDist( *pdDist))
      return false ;
   Point3d ptMinL ; int nFlag ;
   if ( ! distPC.GetMinDistPoint( 0, ptMinL, nFlag))
      return false ;
   ptMin = GetPointInRef( pGeomDB, ptMinL, frCurve, nRefType) ;
   return distPC.GetSideAtMinDistPoint( 0, vtNL, *pnSide) ;
}

//----------------------------------------------------------------------------
bool
ExePointSurfTmDist( const Point3d& ptP, int nStmId, int nRefType,
                    double* pdDist, Point3d& ptMin, int* pnTria)
{
   IGeomDB* pGeomDB = GetCurrGeomDB() ;
   VERIFY_GEOMDB( pGeomDB, false)
  // verifico il primo parametro di ritorno obbligatorio
   if ( pdDist == nullptr)
      return false ;
  // recupero la superficie trimesh
   ISurfTriMesh* pStm = GetSurfTriMesh( pGeomDB->GetGeoObj( nStmId)) ;
   if ( pStm == nullptr)
      return false ;
  // recupero il suo riferimento globale
   Frame3d frStm ;
   if ( ! pGeomDB->GetGlobFrame( nStmId, frStm))
      return false ;
  // porto il punto nel riferimento della superficie
   Point3d ptPL = GetPointLocal( pGeomDB, ptP, nRefType, frStm) ;
  // recupero i risultati
   DistPointSurfTm distPS( ptPL, *pStm) ;
   if ( ! distPS.GetDist( *pdDist))
      return false ;
   Point3d ptMinL ;
   if ( ! distPS.GetMinDistPoint( ptMinL))
      return false ;
   ptMin = GetPointInRef( pGeomDB, ptMinL, frStm, nRefType) ;
   return distPS.GetMinDistTriaIndex( *pnTria) ;
}

//----------------------------------------------------------------------------
bool
ExePointSurfBzDist( const Point3d& ptP, int nSbzId, int nRefType,
                    double* pdDist, Point3d& ptMin, Vector3d& vtN)
{
   IGeomDB* pGeomDB = GetCurrGeomDB() ;
   VERIFY_GEOMDB( pGeomDB, false)
  // verifico il primo parametro di ritorno obbligatorio
   if ( pdDist == nullptr)
      return false ;
  // recupero la superficie bezier
   ISurfBezier* pSbz = GetSurfBezier( pGeomDB->GetGeoObj( nSbzId)) ;
   if ( pSbz == nullptr)
      return false ;
  // recupero il suo riferimento globale
   Frame3d frSbz ;
   if ( ! pGeomDB->GetGlobFrame( nSbzId, frSbz))
      return false ;
  // porto il punto nel riferimento della superficie
   Point3d ptPL = GetPointLocal( pGeomDB, ptP, nRefType, frSbz) ;
  // recupero i risultati
   DistPointSurfBz distPS( ptPL, *pSbz) ;
   if ( ! distPS.GetDist( *pdDist))
      return false ;
   Point3d ptMinL ;
   if ( ! distPS.GetMinDistPoint( ptMinL))
      return false ;
   ptMin = GetPointInRef( pGeomDB, ptMinL, frSbz, nRefType) ;
   Vector3d vtNL ;
   if ( ! distPS.GetNorm( vtNL))
      return false ;
   vtN = GetVectorInRef( pGeomDB, vtNL, frSbz, nRefType) ;
   return true ;
}