lohi.cpp

/********************************************************/
/*                                                      */
/* lohi.cpp - low and high elevations                   */
/*                                                      */
/********************************************************/
/* Copyright 2021 Pierre Abbat.
 * This file is part of PerfectTIN.
 *
 * PerfectTIN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * PerfectTIN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License and Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * and Lesser General Public License along with PerfectTIN. If not, see
 * <http://www.gnu.org/licenses/>.
 */
#include "lohi.h"
using namespace std;

void updlohi(array<double,2> &lh,double elev)
{
  if (elev<lh[0])
    lh[0]=elev;
  if (elev>lh[1])
    lh[1]=elev;
}

void updlohi(array<double,2> &lh,const array<double,2> &elevs)
{
  if (elevs[0]<=elevs[1]) // Segment not in triangle results is {inf,-inf}
  {
    updlohi(lh,elevs[0]);
    updlohi(lh,elevs[1]);
  }
}