qgsmeshlayerutils.h

Go to the documentation of this file.

/***************************************************************************
                         qgsmeshlayerutils.h
                         --------------------------
    begin                : August 2018
    copyright            : (C) 2018 by Martin Dobias
    email                : wonder dot sk at gmail dot com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef QGSMESHLAYERUTILS_H
#define QGSMESHLAYERUTILS_H

#define SIP_NO_FILE

#include "qgis_core.h"
#include "qgsrectangle.h"
#include "qgsmaptopixel.h"

class QgsMeshDataProvider;
class QgsMeshDatasetIndex;

#include <QVector>
#include <QSize>


class CORE_EXPORT QgsMeshLayerUtils
{
  public:

    static void calculateMinimumMaximum( double &min, double &max, const QVector<double> &arr );

    static void calculateMinMaxForDatasetGroup( double &min, double &max, QgsMeshDataProvider *provider, int groupIndex );

    static void calculateMinMaxForDataset( double &min, double &max, QgsMeshDataProvider *provider, QgsMeshDatasetIndex index );

    static void boundingBoxToScreenRectangle(
      const QgsMapToPixel &mtp,
      const QSize &outputSize,
      const QgsRectangle &bbox,
      int &leftLim, int &rightLim, int &topLim, int &bottomLim );

    static double interpolateFromVerticesData(
      const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
      double val1, double val2, double val3, const QgsPointXY &pt
    );

    static double interpolateFromFacesData(
      const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
      double val, const QgsPointXY &pt );

    static QgsRectangle triangleBoundingBox( const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3 );
};


#endif // QGSMESHLAYERUTILS_H