QGIS API Documentation  3.10.0-A CoruĂ±a (6c816b4204)
qgstessellatedpolygongeometry.h
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1 /***************************************************************************
2  qgstessellatedpolygongeometry.h
3  --------------------------------------
4  Date : July 2017
5  Copyright : (C) 2017 by Martin Dobias
6  Email : wonder dot sk at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15
16 #ifndef QGSTESSELLATEDPOLYGONGEOMETRY_H
17 #define QGSTESSELLATEDPOLYGONGEOMETRY_H
18
19 #include "qgsfeatureid.h"
20 #include "qgspolygon.h"
21
22 #include <Qt3DRender/QGeometry>
23
24 namespace Qt3DRender
25 {
26  class QBuffer;
27 }
28
38 class QgsTessellatedPolygonGeometry : public Qt3DRender::QGeometry
39 {
40  Q_OBJECT
41  public:
43  QgsTessellatedPolygonGeometry( QNode *parent = nullptr );
44
46  bool invertNormals() const { return mInvertNormals; }
48  void setInvertNormals( bool invert ) { mInvertNormals = invert; }
49
55
61
63  void setPolygons( const QList<QgsPolygon *> &polygons, const QList<QgsFeatureId> &featureIds, const QgsPointXY &origin, float extrusionHeight, const QList<float> &extrusionHeightPerPolygon = QList<float>() );
64
66  QgsFeatureId triangleIndexToFeatureId( uint triangleIndex ) const;
67
68  private:
69
70  Qt3DRender::QAttribute *mPositionAttribute = nullptr;
71  Qt3DRender::QAttribute *mNormalAttribute = nullptr;
72  Qt3DRender::QBuffer *mVertexBuffer = nullptr;
73
74  QVector<QgsFeatureId> mTriangleIndexFids;
75  QVector<uint> mTriangleIndexStartingIndices;
76
77  bool mWithNormals = true;
78  bool mInvertNormals = false;
80 };
81
82 #endif // QGSTESSELLATEDPOLYGONGEOMETRY_H
void setInvertNormals(bool invert)
Sets whether the normals of triangles will be inverted (useful for fixing clockwise / counter-clockwi...
A class to represent a 2D point.
Definition: qgspointxy.h:43
qint64 QgsFeatureId
Definition: qgsfeatureid.h:25
3 Class derived from Qt3DRender::QGeometry that represents polygons tessellated into 3D geometry...