libetherpix

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/*
 * EtherPix config file generator
 *
 * Copyright 2010-2017 Stefan Schuermans <stefan schuermans info>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
#include <iostream>
#include "box.h"
#include "object.h"
#include "pixel.h"
#include "point.h"
Pixel::Pixel(const Object *pObjPixel):
  mpObjPixel(pObjPixel),
  mX(0),
  mY(0)
{
}
int Pixel::pixCoord(const Point &pix0, const Point &pixSz,
                    unsigned int width, unsigned int height)
{
  // get center of pixel
  mpObjPixel->getBounds(mBounds);
  mBounds.getCenter(mCenter);
  // get coordinates of pixel
  Point delta = mCenter - pix0;
  mX = (unsigned int)(delta.mX / pixSz.mX);
  mY = (unsigned int)(delta.mY / pixSz.mY);
  // check pixel coordinates
  if (mX >= width || mY >= height) {
    std::cerr << "pixel at " << mCenter.mX << "," << mCenter.mY
              << " is out of video frame (" << mX << "," << mY << ")"
              << std::endl;
    return -1;
 
 
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