qgstessellatedpolygongeometry.h

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/***************************************************************************
  qgstessellatedpolygongeometry.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 QGSTESSELLATEDPOLYGONGEOMETRY_H
#define QGSTESSELLATEDPOLYGONGEOMETRY_H
 
#include "qgsfeatureid.h"
#include "qgspolygon.h"
 
#include <Qt3DRender/QGeometry>
 
namespace Qt3DRender
{
  class QBuffer;
}
 
#define SIP_NO_FILE
 
class QgsTessellatedPolygonGeometry : public Qt3DRender::QGeometry
{
    Q_OBJECT
  public:
    QgsTessellatedPolygonGeometry( QNode *parent = nullptr );
 
    bool invertNormals() const { return mInvertNormals; }
    void setInvertNormals( bool invert ) { mInvertNormals = invert; }
 
    bool addBackFaces() const { return mAddBackFaces; }
 
    void setAddBackFaces( bool add ) { mAddBackFaces = add; }
 
    void setPolygons( const QList<QgsPolygon *> &polygons, const QList<QgsFeatureId> &featureIds, const QgsPointXY &origin, float extrusionHeight, const QList<float> &extrusionHeightPerPolygon = QList<float>() );
 
    void setData( const QByteArray &vertexBufferData, int vertexCount, const QVector<QgsFeatureId> &triangleIndexFids, const QVector<uint> &triangleIndexStartingIndices );
 
    QgsFeatureId triangleIndexToFeatureId( uint triangleIndex ) const;
 
  private:
 
    Qt3DRender::QAttribute *mPositionAttribute = nullptr;
    Qt3DRender::QAttribute *mNormalAttribute = nullptr;
    Qt3DRender::QBuffer *mVertexBuffer = nullptr;
 
    QVector<QgsFeatureId> mTriangleIndexFids;
    QVector<uint> mTriangleIndexStartingIndices;
 
    bool mWithNormals = true;
    bool mInvertNormals = false;
    bool mAddBackFaces = false;
};
 
#endif // QGSTESSELLATEDPOLYGONGEOMETRY_H