QGIS API Documentation  3.27.0-Master (11ef3e5184)
qgs3dsceneexporter.h
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1 /***************************************************************************
2  qgs3dsceneexporter.h
3  --------------------------------------
4  Date : June 2020
5  Copyright : (C) 2020 by Belgacem Nedjima
6  Email : gb underscore nedjima at esi dot dz
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGS3DSCENEEXPORTER_H
17 #define QGS3DSCENEEXPORTER_H
18 
19 #include <Qt3DCore/QEntity>
20 #include <Qt3DExtras/QPlaneGeometry>
21 #include <Qt3DRender/QSceneLoader>
22 #include <Qt3DRender/QMesh>
23 #include <QMap>
24 #include <QFile>
25 #include <QVector3D>
26 
27 #include "qgs3dexportobject.h"
28 
30 class QgsTerrainTileEntity;
31 class QgsTerrainEntity;
32 class Qgs3DMapSettings;
35 class QgsChunkNode;
36 class Qgs3DExportObject;
37 class QgsTerrainTextureGenerator;
38 class QgsVectorLayer;
39 class QgsPolygon3DSymbol;
40 class QgsLine3DSymbol;
41 class QgsPoint3DSymbol;
42 class QgsMeshEntity;
43 
44 #define SIP_NO_FILE
45 
54 class _3D_EXPORT Qgs3DSceneExporter : public Qt3DCore::QEntity
55 {
56  Q_OBJECT
57 
58  public:
63  {
64  for ( Qgs3DExportObject *obj : mObjects )
65  delete obj;
66  }
67 
72  bool parseVectorLayerEntity( Qt3DCore::QEntity *entity, QgsVectorLayer *layer );
73 
75  void parseTerrain( QgsTerrainEntity *terrain, const QString &layer );
76 
78  void save( const QString &sceneName, const QString &sceneFolderPath );
79 
81  void setSmoothEdges( bool smoothEdges ) { mSmoothEdges = smoothEdges; }
83  bool smoothEdges() const { return mSmoothEdges; }
84 
86  void setExportNormals( bool exportNormals ) { mExportNormals = exportNormals; }
88  bool exportNormals() const { return mExportNormals; }
89 
91  void setExportTextures( bool exportTextures ) { mExportTextures = exportTextures; }
93  bool exportTextures() const { return mExportTextures; }
94 
96  void setTerrainResolution( int resolution ) { mTerrainResolution = resolution; }
98  int terrainResolution() const { return mTerrainResolution; }
99 
101  void setTerrainTextureResolution( int resolution ) { mTerrainTextureResolution = resolution; }
103  int terrainTextureResolution() const { return mTerrainTextureResolution; }
105  void setScale( float scale ) { mScale = scale; }
107  float scale() const { return mScale; }
108 
109  private:
111  QVector<Qgs3DExportObject *> processInstancedPointGeometry( Qt3DCore::QEntity *entity, const QString &objectNamePrefix );
113  QVector<Qgs3DExportObject *> processSceneLoaderGeometries( Qt3DRender::QSceneLoader *sceneLoader, const QString &objectNamePrefix );
115  Qgs3DExportObject *processGeometryRenderer( Qt3DRender::QGeometryRenderer *mesh, const QString &objectNamePrefix, float sceneScale = 1.0f, QVector3D sceneTranslation = QVector3D( 0.0f, 0.0f, 0.0f ) );
117  void processEntityMaterial( Qt3DCore::QEntity *entity, Qgs3DExportObject *object );
119  QVector<Qgs3DExportObject *> processLines( Qt3DCore::QEntity *entity, const QString &objectNamePrefix );
121  Qgs3DExportObject *processPoints( Qt3DCore::QEntity *entity, const QString &objectNamePrefix );
122 
124  QgsTerrainTileEntity *getFlatTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
126  QgsTerrainTileEntity *getDemTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
128  QgsTerrainTileEntity *getMeshTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
129 
131  void parseDemTile( QgsTerrainTileEntity *tileEntity, const QString &layerName );
133  void parseFlatTile( QgsTerrainTileEntity *tileEntity, const QString &layerName );
135  void parseMeshTile( QgsTerrainTileEntity *meshEntity, const QString &layerName );
136 
137  QString getObjectName( const QString &name );
138  private:
139  QMap<QString, int> usedObjectNamesCounter;
140  QVector<Qgs3DExportObject *> mObjects;
141 
142  bool mSmoothEdges = false;
143  int mTerrainResolution = 128;
144  bool mExportNormals = true;
145  bool mExportTextures = false;
146  int mTerrainTextureResolution = 512;
147  float mScale = 1.0f;
148 
149  friend QgsPolygon3DSymbol;
150  friend QgsLine3DSymbol;
151  friend QgsPoint3DSymbol;
152 };
153 
154 #endif // QGS3DSCENEEXPORTER_H
Manages the data of each object of the scene (positions, normals, texture coordinates ....
Entity that handles the exporting of 3D scene.
bool exportTextures() const
Returns whether the textures will be exported.
int terrainResolution() const
Returns the terrain resolution.
void setExportTextures(bool exportTextures)
Sets whether the textures will be exported.
~Qgs3DSceneExporter()
Destructor.
void setTerrainResolution(int resolution)
Sets the terrain resolution.
bool smoothEdges() const
Returns whether the triangles will look smooth.
Qgs3DSceneExporter()
Constructor.
void setTerrainTextureResolution(int resolution)
Sets the terrain texture resolution.
bool exportNormals() const
Returns whether the normals will be exported.
float scale() const
Returns the scale of the exported 3D model.
void setScale(float scale)
Sets the scale of the exported 3D model.
void setExportNormals(bool exportNormals)
Sets whether the normals will be exported.
void setSmoothEdges(bool smoothEdges)
Sets whether the triangles will look smooth.
int terrainTextureResolution() const
Returns the terrain resolution.
Represents a vector layer which manages a vector based data sets.