qgsdemterraintilegeometry_p.h

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/***************************************************************************
  qgsdemterraintilegeometry_p.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 QGSDEMTERRAINTILEGEOMETRY_P_H
#define QGSDEMTERRAINTILEGEOMETRY_P_H

 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the QGIS API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
 
#define SIP_NO_FILE
 
#include <QImage>
#include <QSize>
#include <Qt3DCore/QGeometry>
#include <Qt3DExtras/qt3dextras_global.h>
 
namespace Qt3DCore
{
  class QAttribute;
  class QBuffer;
} // namespace Qt3DCore
 
class QgsRay3D;
class QgsRayCastContext;

class DemTerrainTileGeometry : public Qt3DCore::QGeometry
{
    Q_OBJECT
 
  public:
    explicit DemTerrainTileGeometry( int resolution, float side, float vertScale, float skirtHeight, const QByteArray &heightMap, QNode *parent = nullptr );
 
    bool rayIntersection( const QgsRay3D &ray, const QgsRayCastContext &context, const QMatrix4x4 &worldTransform, QVector3D &intersectionPoint );
 
    Qt3DCore::QAttribute *positionAttribute() { return mPositionAttribute; }
    Qt3DCore::QAttribute *normalAttribute() { return mNormalAttribute; }
    Qt3DCore::QAttribute *texCoordsAttribute() { return mTexCoordAttribute; }
    Qt3DCore::QAttribute *indexAttribute() { return mIndexAttribute; }
 
  private:
    void init();
 
    int mResolution;
    float mSide;
    float mVertScale;
    float mSkirtHeight;
    QByteArray mHeightMap;
    Qt3DCore::QAttribute *mPositionAttribute = nullptr;
    Qt3DCore::QAttribute *mNormalAttribute = nullptr;
    Qt3DCore::QAttribute *mTexCoordAttribute = nullptr;
    Qt3DCore::QAttribute *mIndexAttribute = nullptr;
    Qt3DCore::QBuffer *mVertexBuffer = nullptr;
    Qt3DCore::QBuffer *mIndexBuffer = nullptr;
};

 
#endif // QGSDEMTERRAINTILEGEOMETRY_P_H