qgsdemterraingenerator.h

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/***************************************************************************
  qgsdemterraingenerator.h
  --------------------------------------
  Date                 : July 2017
  Copyright            : (C) 2017 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 QGSDEMTERRAINGENERATOR_H
#define QGSDEMTERRAINGENERATOR_H

#include "qgis_3d.h"

#include "qgsterraingenerator.h"


#include <memory>

class QgsRasterLayer;
class QgsDemHeightMapGenerator;

#include "qgsmaplayerref.h"

class _3D_EXPORT QgsDemTerrainGenerator : public QgsTerrainGenerator
{
  public:
    QgsDemTerrainGenerator() = default;
    ~QgsDemTerrainGenerator() override;

    void setLayer( QgsRasterLayer *layer );
    QgsRasterLayer *layer() const;

    void setCrs( const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context );

    void setResolution( int resolution ) { mResolution = resolution; updateGenerator(); }
    int resolution() const { return mResolution; }

    void setSkirtHeight( float skirtHeight ) { mSkirtHeight = skirtHeight; }
    float skirtHeight() const { return mSkirtHeight; }

    QgsDemHeightMapGenerator *heightMapGenerator() { return mHeightMapGenerator; }

    QgsTerrainGenerator *clone() const override SIP_FACTORY;
    Type type() const override;
    QgsRectangle extent() const override;
    float heightAt( double x, double y, const Qgs3DMapSettings &map ) const override;
    void writeXml( QDomElement &elem ) const override;
    void readXml( const QDomElement &elem ) override;
    void resolveReferences( const QgsProject &project ) override;

    QgsChunkLoader *createChunkLoader( QgsChunkNode *node ) const override SIP_FACTORY;

  private:
    void updateGenerator();

    QgsDemHeightMapGenerator *mHeightMapGenerator = nullptr;

    QgsCoordinateReferenceSystem mCrs;

    QgsCoordinateTransformContext mTransformContext;

    QgsMapLayerRef mLayer;
    int mResolution = 16;
    float mSkirtHeight = 10.f;
};


#endif // QGSDEMTERRAINGENERATOR_H