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Merge pull request #33837 from vcloarec/3D_back_simple
[Feature][Mesh][3D] new 3D mesh layer renderer
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/*************************************************************************** | ||
qgsmesh3dentity.cpp | ||
------------------------- | ||
begin : january 2020 | ||
copyright : (C) 2020 by Vincent Cloarec | ||
email : vcloarec at gmail dot com | ||
***************************************************************************/ | ||
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/*************************************************************************** | ||
* * | ||
* 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. * | ||
* * | ||
***************************************************************************/ | ||
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#include "qgsmesh3dentity_p.h" | ||
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#include <Qt3DRender/QGeometryRenderer> | ||
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#include "qgsmeshlayer.h" | ||
#include "qgsmapsettings.h" | ||
#include "qgs3dmapsettings.h" | ||
#include "qgsmeshlayerrenderer.h" | ||
#include "qgsterraintextureimage_p.h" | ||
#include "qgsmesh3dmaterial_p.h" | ||
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QgsMesh3dEntity::QgsMesh3dEntity( const Qgs3DMapSettings &map, | ||
const QgsTriangularMesh triangularMesh, | ||
const QgsRectangle &extent, | ||
const QgsMesh3DSymbol &symbol ): | ||
mExtent( extent ), | ||
mSymbol( symbol ), | ||
mMapSettings( map ), | ||
mTriangularMesh( triangularMesh ) | ||
{} | ||
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void QgsMesh3dEntity::build() | ||
{ | ||
buildGeometry(); | ||
applyMaterial(); | ||
} | ||
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void QgsMesh3dEntity::buildGeometry() | ||
{ | ||
Qt3DRender::QGeometryRenderer *mesh = new Qt3DRender::QGeometryRenderer; | ||
QVector<double> fakeScalarMag( mTriangularMesh.vertices().count() ); | ||
for ( int i = 0; i < mTriangularMesh.vertices().count(); ++i ) | ||
{ | ||
fakeScalarMag[i] = mTriangularMesh.vertices().at( i ).z(); | ||
} | ||
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mesh->setGeometry( new QgsMesh3dGeometry( mTriangularMesh, | ||
mExtent, | ||
mSymbol.verticaleScale(), | ||
mesh ) ); | ||
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addComponent( mesh ); | ||
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Qt3DCore::QTransform *tform = new Qt3DCore::QTransform; | ||
tform->setTranslation( QVector3D( float( -mMapSettings.origin().x() ), 0, float( mMapSettings.origin().y() ) ) ); | ||
addComponent( tform ); | ||
} | ||
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void QgsMesh3dEntity::applyMaterial() | ||
{ | ||
mMaterial = new QgsMesh3dMaterial( mSymbol ); | ||
addComponent( mMaterial ); | ||
} | ||
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QgsMesh3dTerrainTileEntity::QgsMesh3dTerrainTileEntity( const Qgs3DMapSettings &map, | ||
const QgsTriangularMesh triangularMesh, | ||
const QgsRectangle &extent, | ||
const QgsMesh3DSymbol &symbol, | ||
QgsChunkNodeId nodeId, | ||
Qt3DCore::QNode *parent ): | ||
QgsTerrainTileEntity( nodeId, parent ), | ||
mExtent( extent ), | ||
mSymbol( symbol ), | ||
mMapSettings( map ), | ||
mTriangularMesh( triangularMesh ) | ||
{} | ||
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void QgsMesh3dTerrainTileEntity::build() | ||
{ | ||
buildGeometry(); | ||
applyMaterial(); | ||
} | ||
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void QgsMesh3dTerrainTileEntity::buildGeometry() | ||
{ | ||
Qt3DRender::QGeometryRenderer *mesh = new Qt3DRender::QGeometryRenderer; | ||
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mesh->setGeometry( new QgsMesh3dGeometry( mTriangularMesh, mExtent, mSymbol.verticaleScale(), mesh ) ); | ||
addComponent( mesh ); | ||
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Qt3DCore::QTransform *tform = new Qt3DCore::QTransform; | ||
tform->setTranslation( QVector3D( float( -mMapSettings.origin().x() ), 0, float( mMapSettings.origin().y() ) ) ); | ||
addComponent( tform ); | ||
} | ||
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void QgsMesh3dTerrainTileEntity::applyMaterial() | ||
{ | ||
mMaterial = new QgsMesh3dMaterial( mSymbol ); | ||
addComponent( mMaterial ); | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,102 @@ | ||
/*************************************************************************** | ||
qgsmesh3dentity.h | ||
------------------------- | ||
begin : january 2020 | ||
copyright : (C) 2020 by Vincent Cloarec | ||
email : vcloarec 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. * | ||
* * | ||
***************************************************************************/ | ||
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#ifndef QGSMESHENTITY_H | ||
#define QGSMESHENTITY_H | ||
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#include <Qt3DCore/QEntity> | ||
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#include "mesh/qgsmesh3dgeometry_p.h" | ||
#include "qgs3dmapsettings.h" | ||
#include "qgsmesh3dsymbol.h" | ||
#include "qgsterraintileentity_p.h" | ||
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///@cond PRIVATE | ||
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// | ||
// 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. | ||
// | ||
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class Qgs3DMapSettings; | ||
class QgsTessellatedPolygonGeometry; | ||
class QgsMesh3DSymbol; | ||
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class QgsMeshLayer; | ||
class QgsMesh3dMaterial; | ||
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//! Entity that handles rendering of mesh | ||
class QgsMesh3dEntity: public Qt3DCore::QEntity | ||
{ | ||
public: | ||
//! Constructor | ||
QgsMesh3dEntity( const Qgs3DMapSettings &map, | ||
const QgsTriangularMesh triangularMesh, | ||
const QgsRectangle &extent, | ||
const QgsMesh3DSymbol &symbol ); | ||
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//! Builds the geometry and the material | ||
void build(); | ||
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private: | ||
virtual void buildGeometry(); | ||
virtual void applyMaterial(); | ||
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QgsRectangle mExtent; | ||
QgsMesh3DSymbol mSymbol; | ||
Qgs3DMapSettings mMapSettings; | ||
QgsTriangularMesh mTriangularMesh; | ||
QgsMesh3dMaterial *mMaterial = nullptr; | ||
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static int mMesh3DEntityCount; | ||
QString name; | ||
}; | ||
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//! Entity that handles rendering of terrain mesh | ||
class QgsMesh3dTerrainTileEntity: public QgsTerrainTileEntity | ||
{ | ||
public: | ||
QgsMesh3dTerrainTileEntity( const Qgs3DMapSettings &map, | ||
const QgsTriangularMesh triangularMesh, | ||
const QgsRectangle &extent, | ||
const QgsMesh3DSymbol &symbol, | ||
QgsChunkNodeId nodeId, | ||
Qt3DCore::QNode *parent = nullptr ); | ||
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void build(); | ||
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private: | ||
virtual void buildGeometry(); | ||
virtual void applyMaterial(); | ||
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QgsRectangle mExtent; | ||
QgsMesh3DSymbol mSymbol; | ||
Qgs3DMapSettings mMapSettings; | ||
QgsTriangularMesh mTriangularMesh; | ||
QgsMesh3dMaterial *mMaterial = nullptr; | ||
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static int mMesh3DEntityCount; | ||
QString name; | ||
}; | ||
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///@endcond | ||
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#endif // QGSMESHENTITY_H |
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