/Users/barrand/private/dev/softinex/old/inexlib-1.2/inlib/inlib/box_3f

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file inlib.license for terms.

#ifndef inlib_box_3f
#define inlib_box_3f

#include "mnmx"

#include <cfloat> // FLT_MAX

namespace inlib {

// optimization (used in exlib/sg/text_hershey) :

inline void box3f_make_empty(float& a_mn_x,float& a_mn_y,float& a_mn_z,
                             float& a_mx_x,float& a_mx_y,float& a_mx_z){
  a_mn_x = FLT_MAX;
  a_mn_y = FLT_MAX;
  a_mn_z = FLT_MAX;
  a_mx_x = -FLT_MAX;
  a_mx_y = -FLT_MAX;
  a_mx_z = -FLT_MAX;
}
inline void box3f_extend_by(float& a_mn_x,float& a_mn_y,float& a_mn_z,
                            float& a_mx_x,float& a_mx_y,float& a_mx_z,
                            float a_x,float a_y,float a_z){
  if(a_mx_x<a_mn_x){ //is empty.
    a_mn_x = a_x;
    a_mn_y = a_y;
    a_mn_z = a_z;

    a_mx_x = a_x;
    a_mx_y = a_y;
    a_mx_z = a_z;
  } else {
    a_mn_x = inlib::mn<float>(a_x,a_mn_x);
    a_mn_y = inlib::mn<float>(a_y,a_mn_y);
    a_mn_z = inlib::mn<float>(a_z,a_mn_z);

    a_mx_x = inlib::mx<float>(a_x,a_mx_x);
    a_mx_y = inlib::mx<float>(a_y,a_mx_y);
    a_mx_z = inlib::mx<float>(a_z,a_mx_z);
  }
}
inline bool box3f_is_empty(float a_mn_x,float a_mx_x) {
  return a_mx_x < a_mn_x;
}

}

#endif