void QgsBufferedLine3DSymbolHandler::makeEntity( Qt3DCore::QEntity *parent, const Qgs3DRenderContext &context, LineData &out, bool selected )
{
if ( out.polygons.isEmpty() )
return; // nothing to show - no need to create the entity
Qt3DExtras::QPhongMaterial *mat = _material( mSymbol );
if ( selected )
{
// update the material with selection colors
mat->setDiffuse( context.map().selectionColor() );
mat->setAmbient( context.map().selectionColor().darker() );
}
QgsPointXY origin( context.map().origin().x(), context.map().origin().y() );
QgsTessellatedPolygonGeometry *geometry = new QgsTessellatedPolygonGeometry;
geometry->setPolygons( out.polygons, out.fids, origin, mSymbol.extrusionHeight() );
Qt3DRender::QGeometryRenderer *renderer = new Qt3DRender::QGeometryRenderer;
renderer->setGeometry( geometry );
// make entity
Qt3DCore::QEntity *entity = new Qt3DCore::QEntity;
entity->addComponent( renderer );
entity->addComponent( mat );
entity->setParent( parent );
if ( !selected )
entity->findChild<Qt3DRender::QGeometryRenderer *>()->setObjectName( QStringLiteral( "main" ) ); // temporary measure to distinguish between "selected" and "main"
}
Qt3DRender::QGeometryRenderer *QgsLine3DSymbolEntityNode::renderer( const Qgs3DMapSettings &map, const QgsLine3DSymbol &symbol, const QgsVectorLayer *layer, const QgsFeatureRequest &request )
{
QgsPointXY origin( map.origin().x(), map.origin().y() );
// TODO: configurable
int nSegments = 4;
QgsGeometry::EndCapStyle endCapStyle = QgsGeometry::CapRound;
QgsGeometry::JoinStyle joinStyle = QgsGeometry::JoinStyleRound;
double mitreLimit = 0;
QList<QgsPolygon *> polygons;
QgsFeature f;
QgsFeatureIterator fi = layer->getFeatures( request );
while ( fi.nextFeature( f ) )
{
if ( f.geometry().isNull() )
continue;
QgsGeometry geom = f.geometry();
// segmentize curved geometries if necessary
if ( QgsWkbTypes::isCurvedType( geom.constGet()->wkbType() ) )
geom = QgsGeometry( geom.constGet()->segmentize() );
const QgsAbstractGeometry *g = geom.constGet();
QgsGeos engine( g );
QgsAbstractGeometry *buffered = engine.buffer( symbol.width() / 2., nSegments, endCapStyle, joinStyle, mitreLimit ); // factory
if ( QgsWkbTypes::flatType( buffered->wkbType() ) == QgsWkbTypes::Polygon )
{
QgsPolygon *polyBuffered = static_cast<QgsPolygon *>( buffered );
Qgs3DUtils::clampAltitudes( polyBuffered, symbol.altitudeClamping(), symbol.altitudeBinding(), symbol.height(), map );
polygons.append( polyBuffered );
}
else if ( QgsWkbTypes::flatType( buffered->wkbType() ) == QgsWkbTypes::MultiPolygon )
{
QgsMultiPolygon *mpolyBuffered = static_cast<QgsMultiPolygon *>( buffered );
for ( int i = 0; i < mpolyBuffered->numGeometries(); ++i )
{
QgsAbstractGeometry *partBuffered = mpolyBuffered->geometryN( i );
Q_ASSERT( QgsWkbTypes::flatType( partBuffered->wkbType() ) == QgsWkbTypes::Polygon );
QgsPolygon *polyBuffered = static_cast<QgsPolygon *>( partBuffered )->clone(); // need to clone individual geometry parts
Qgs3DUtils::clampAltitudes( polyBuffered, symbol.altitudeClamping(), symbol.altitudeBinding(), symbol.height(), map );
polygons.append( polyBuffered );
}
delete buffered;
}
}
mGeometry = new QgsTessellatedPolygonGeometry;
mGeometry->setPolygons( polygons, origin, symbol.extrusionHeight() );
Qt3DRender::QGeometryRenderer *renderer = new Qt3DRender::QGeometryRenderer;
renderer->setGeometry( mGeometry );
return renderer;
}
Qt3DCore::QEntity *QgsDemTerrainTileLoader::createEntity( Qt3DCore::QEntity *parent )
{
QgsTerrainTileEntity *entity = new QgsTerrainTileEntity;
// create geometry renderer
Qt3DRender::QGeometryRenderer *mesh = new Qt3DRender::QGeometryRenderer;
mesh->setGeometry( new DemTerrainTileGeometry( mResolution, mHeightMap, mesh ) );
entity->addComponent( mesh ); // takes ownership if the component has no parent
// create material
createTextureComponent( entity );
// create transform
Qt3DCore::QTransform *transform;
transform = new Qt3DCore::QTransform();
entity->addComponent( transform );
float zMin, zMax;
_heightMapMinMax( mHeightMap, zMin, zMax );
const Qgs3DMapSettings &map = terrain()->map3D();
QgsRectangle extent = map.terrainGenerator()->tilingScheme().tileToExtent( mNode->tileX(), mNode->tileY(), mNode->tileZ() ); //node->extent;
double x0 = extent.xMinimum() - map.originX();
double y0 = extent.yMinimum() - map.originY();
double side = extent.width();
double half = side / 2;
transform->setScale3D( QVector3D( side, map.terrainVerticalScale(), side ) );
transform->setTranslation( QVector3D( x0 + half, 0, - ( y0 + half ) ) );
mNode->setExactBbox( QgsAABB( x0, zMin * map.terrainVerticalScale(), -y0, x0 + side, zMax * map.terrainVerticalScale(), -( y0 + side ) ) );
entity->setEnabled( false );
entity->setParent( parent );
return entity;
}
virtual Qt3DCore::QEntity *createEntity( Qt3DCore::QEntity *parent )
{
Qt3DCore::QEntity *entity = new Qt3DCore::QEntity;
// create geometry renderer
Qt3DRender::QGeometryRenderer *mesh = new Qt3DRender::QGeometryRenderer;
mesh->setGeometry( new QuantizedMeshGeometry( qmt, mTerrain->map3D(), mapSettings.mapToPixel(), mTerrain->terrainToMapTransform(), mesh ) );
entity->addComponent( mesh );
// create material
createTextureComponent( entity );
// create transform
Qt3DCore::QTransform *transform;
transform = new Qt3DCore::QTransform();
entity->addComponent( transform );
const Map3D &map = mTerrain->map3D();
transform->setScale3D( QVector3D( 1.f, map.zExaggeration, 1.f ) );
QgsRectangle mapExtent = mapSettings.extent();
float x0 = mapExtent.xMinimum() - map.originX;
float y0 = mapExtent.yMinimum() - map.originY;
float x1 = mapExtent.xMaximum() - map.originX;
float y1 = mapExtent.yMaximum() - map.originY;
float z0 = qmt->header.MinimumHeight, z1 = qmt->header.MaximumHeight;
node->setExactBbox( AABB( x0, z0 * map.zExaggeration, -y0, x1, z1 * map.zExaggeration, -y1 ) );
//epsilon = mapExtent.width() / map.tileTextureSize;
entity->setEnabled( false );
entity->setParent( parent );
return entity;
}
Qt3DCore::QEntity *FlatTerrainChunkLoader::createEntity( Qt3DCore::QEntity *parent )
{
QgsTerrainTileEntity *entity = new QgsTerrainTileEntity;
// make geometry renderer
// simple quad geometry shared by all tiles
// QPlaneGeometry by default is 1x1 with mesh resolution QSize(2,2), centered at 0
// TODO: the geometry could be shared inside Terrain instance (within terrain-generator specific data?)
mTileGeometry = new Qt3DExtras::QPlaneGeometry;
Qt3DRender::QGeometryRenderer *mesh = new Qt3DRender::QGeometryRenderer;
mesh->setGeometry( mTileGeometry ); // takes ownership if the component has no parent
entity->addComponent( mesh ); // takes ownership if the component has no parent
// create material
createTextureComponent( entity );
// create transform
Qt3DCore::QTransform *transform = nullptr;
transform = new Qt3DCore::QTransform();
entity->addComponent( transform );
// set up transform according to the extent covered by the quad geometry
QgsAABB bbox = mNode->bbox();
double side = bbox.xMax - bbox.xMin;
double half = side / 2;
transform->setScale( side );
transform->setTranslation( QVector3D( bbox.xMin + half, 0, bbox.zMin + half ) );
entity->setEnabled( false );
entity->setParent( parent );
return entity;
}
Qt3DRender::QGeometryRenderer *QgsLine3DSymbolEntityNode::rendererSimple( const Qgs3DMapSettings &map, const QgsLine3DSymbol &symbol, const QgsVectorLayer *layer, const QgsFeatureRequest &request )
{
QVector<QVector3D> vertices;
vertices << QVector3D(); // the first index is invalid, we use it for primitive restart
QVector<unsigned int> indexes;
QgsPoint centroid;
QgsPointXY origin( map.origin().x(), map.origin().y() );
QgsFeature f;
QgsFeatureIterator fi = layer->getFeatures( request );
while ( fi.nextFeature( f ) )
{
if ( f.geometry().isNull() )
continue;
if ( symbol.altitudeBinding() == AltBindCentroid )
centroid = QgsPoint( f.geometry().centroid().asPoint() );
QgsGeometry geom = f.geometry();
const QgsAbstractGeometry *g = geom.constGet();
if ( const QgsLineString *ls = qgsgeometry_cast<const QgsLineString *>( g ) )
{
for ( int i = 0; i < ls->vertexCount(); ++i )
{
QgsPoint p = ls->pointN( i );
float z = Qgs3DUtils::clampAltitude( p, symbol.altitudeClamping(), symbol.altitudeBinding(), symbol.height(), centroid, map );
vertices << QVector3D( p.x() - map.origin().x(), z, -( p.y() - map.origin().y() ) );
indexes << vertices.count() - 1;
}
}
else if ( const QgsMultiLineString *mls = qgsgeometry_cast<const QgsMultiLineString *>( g ) )
{
for ( int nGeom = 0; nGeom < mls->numGeometries(); ++nGeom )
{
const QgsLineString *ls = qgsgeometry_cast<const QgsLineString *>( mls->geometryN( nGeom ) );
for ( int i = 0; i < ls->vertexCount(); ++i )
{
QgsPoint p = ls->pointN( i );
float z = Qgs3DUtils::clampAltitude( p, symbol.altitudeClamping(), symbol.altitudeBinding(), symbol.height(), centroid, map );
vertices << QVector3D( p.x() - map.origin().x(), z, -( p.y() - map.origin().y() ) );
indexes << vertices.count() - 1;
}
indexes << 0; // add primitive restart
}
}
indexes << 0; // add primitive restart
}
QByteArray vertexBufferData;
vertexBufferData.resize( vertices.size() * 3 * sizeof( float ) );
float *rawVertexArray = reinterpret_cast<float *>( vertexBufferData.data() );
int idx = 0;
for ( const auto &v : vertices )
{
rawVertexArray[idx++] = v.x();
rawVertexArray[idx++] = v.y();
rawVertexArray[idx++] = v.z();
}
QByteArray indexBufferData;
indexBufferData.resize( indexes.size() * sizeof( int ) );
unsigned int *rawIndexArray = reinterpret_cast<unsigned int *>( indexBufferData.data() );
idx = 0;
for ( unsigned int indexVal : indexes )
{
rawIndexArray[idx++] = indexVal;
}
Qt3DRender::QBuffer *vertexBuffer = new Qt3DRender::QBuffer( Qt3DRender::QBuffer::VertexBuffer, this );
vertexBuffer->setData( vertexBufferData );
Qt3DRender::QBuffer *indexBuffer = new Qt3DRender::QBuffer( Qt3DRender::QBuffer::IndexBuffer, this );
indexBuffer->setData( indexBufferData );
Qt3DRender::QAttribute *positionAttribute = new Qt3DRender::QAttribute( this );
positionAttribute->setAttributeType( Qt3DRender::QAttribute::VertexAttribute );
positionAttribute->setBuffer( vertexBuffer );
positionAttribute->setVertexBaseType( Qt3DRender::QAttribute::Float );
positionAttribute->setVertexSize( 3 );
positionAttribute->setName( Qt3DRender::QAttribute::defaultPositionAttributeName() );
Qt3DRender::QAttribute *indexAttribute = new Qt3DRender::QAttribute( this );
indexAttribute->setAttributeType( Qt3DRender::QAttribute::IndexAttribute );
indexAttribute->setBuffer( indexBuffer );
indexAttribute->setVertexBaseType( Qt3DRender::QAttribute::UnsignedInt );
Qt3DRender::QGeometry *geom = new Qt3DRender::QGeometry;
geom->addAttribute( positionAttribute );
geom->addAttribute( indexAttribute );
Qt3DRender::QGeometryRenderer *renderer = new Qt3DRender::QGeometryRenderer;
renderer->setPrimitiveType( Qt3DRender::QGeometryRenderer::LineStrip );
renderer->setGeometry( geom );
renderer->setVertexCount( vertices.count() );
renderer->setPrimitiveRestartEnabled( true );
renderer->setRestartIndexValue( 0 );
return renderer;
}
Qt3DRender::QGeometryRenderer *QgsPolygon3DSymbolEntityNode::renderer( const Qgs3DMapSettings &map, const QgsPolygon3DSymbol &symbol, const QgsVectorLayer *layer, const QgsFeatureRequest &request )
{
QgsPointXY origin( map.origin().x(), map.origin().y() );
QList<QgsPolygon *> polygons;
QList<float> extrusionHeightPerPolygon; // will stay empty if not needed per polygon
QgsExpressionContext ctx( _expressionContext3D() );
ctx.setFields( layer->fields() );
const QgsPropertyCollection &ddp = symbol.dataDefinedProperties();
bool hasDDHeight = ddp.isActive( QgsAbstract3DSymbol::PropertyHeight );
bool hasDDExtrusion = ddp.isActive( QgsAbstract3DSymbol::PropertyExtrusionHeight );
QgsFeature f;
QgsFeatureIterator fi = layer->getFeatures( request );
while ( fi.nextFeature( f ) )
{
if ( f.geometry().isNull() )
continue;
QgsGeometry geom = f.geometry();
// segmentize curved geometries if necessary
if ( QgsWkbTypes::isCurvedType( geom.constGet()->wkbType() ) )
geom = QgsGeometry( geom.constGet()->segmentize() );
const QgsAbstractGeometry *g = geom.constGet();
ctx.setFeature( f );
float height = symbol.height();
float extrusionHeight = symbol.extrusionHeight();
if ( hasDDHeight )
height = ddp.valueAsDouble( QgsAbstract3DSymbol::PropertyHeight, ctx, height );
if ( hasDDExtrusion )
extrusionHeight = ddp.valueAsDouble( QgsAbstract3DSymbol::PropertyExtrusionHeight, ctx, extrusionHeight );
if ( const QgsPolygon *poly = qgsgeometry_cast< const QgsPolygon *>( g ) )
{
QgsPolygon *polyClone = poly->clone();
Qgs3DUtils::clampAltitudes( polyClone, symbol.altitudeClamping(), symbol.altitudeBinding(), height, map );
polygons.append( polyClone );
if ( hasDDExtrusion )
extrusionHeightPerPolygon.append( extrusionHeight );
}
else if ( const QgsMultiPolygon *mpoly = qgsgeometry_cast< const QgsMultiPolygon *>( g ) )
{
for ( int i = 0; i < mpoly->numGeometries(); ++i )
{
const QgsAbstractGeometry *g2 = mpoly->geometryN( i );
Q_ASSERT( QgsWkbTypes::flatType( g2->wkbType() ) == QgsWkbTypes::Polygon );
QgsPolygon *polyClone = static_cast< const QgsPolygon *>( g2 )->clone();
Qgs3DUtils::clampAltitudes( polyClone, symbol.altitudeClamping(), symbol.altitudeBinding(), height, map );
polygons.append( polyClone );
if ( hasDDExtrusion )
extrusionHeightPerPolygon.append( extrusionHeight );
}
}
else
qDebug() << "not a polygon";
}
mGeometry = new QgsTessellatedPolygonGeometry;
mGeometry->setPolygons( polygons, origin, symbol.extrusionHeight(), extrusionHeightPerPolygon );
Qt3DRender::QGeometryRenderer *renderer = new Qt3DRender::QGeometryRenderer;
renderer->setGeometry( mGeometry );
return renderer;
}
void QgsSimpleLine3DSymbolHandler::makeEntity( Qt3DCore::QEntity *parent, const Qgs3DRenderContext &context, LineData &out, bool selected )
{
if ( out.indexes.isEmpty() )
return;
// material (only ambient color is used for the color)
Qt3DExtras::QPhongMaterial *mat = _material( mSymbol );
if ( selected )
{
// update the material with selection colors
mat->setAmbient( context.map().selectionColor() );
}
// geometry renderer
QByteArray vertexBufferData;
vertexBufferData.resize( out.vertices.size() * 3 * sizeof( float ) );
float *rawVertexArray = reinterpret_cast<float *>( vertexBufferData.data() );
int idx = 0;
for ( const auto &v : qgis::as_const( out.vertices ) )
{
rawVertexArray[idx++] = v.x();
rawVertexArray[idx++] = v.y();
rawVertexArray[idx++] = v.z();
}
QByteArray indexBufferData;
indexBufferData.resize( out.indexes.size() * sizeof( int ) );
unsigned int *rawIndexArray = reinterpret_cast<unsigned int *>( indexBufferData.data() );
idx = 0;
for ( unsigned int indexVal : qgis::as_const( out.indexes ) )
{
rawIndexArray[idx++] = indexVal;
}
Qt3DCore::QEntity *entity = new Qt3DCore::QEntity;
Qt3DRender::QBuffer *vertexBuffer = new Qt3DRender::QBuffer( Qt3DRender::QBuffer::VertexBuffer, entity );
vertexBuffer->setData( vertexBufferData );
Qt3DRender::QBuffer *indexBuffer = new Qt3DRender::QBuffer( Qt3DRender::QBuffer::IndexBuffer, entity );
indexBuffer->setData( indexBufferData );
Qt3DRender::QAttribute *positionAttribute = new Qt3DRender::QAttribute( entity );
positionAttribute->setAttributeType( Qt3DRender::QAttribute::VertexAttribute );
positionAttribute->setBuffer( vertexBuffer );
positionAttribute->setVertexBaseType( Qt3DRender::QAttribute::Float );
positionAttribute->setVertexSize( 3 );
positionAttribute->setName( Qt3DRender::QAttribute::defaultPositionAttributeName() );
Qt3DRender::QAttribute *indexAttribute = new Qt3DRender::QAttribute( entity );
indexAttribute->setAttributeType( Qt3DRender::QAttribute::IndexAttribute );
indexAttribute->setBuffer( indexBuffer );
indexAttribute->setVertexBaseType( Qt3DRender::QAttribute::UnsignedInt );
Qt3DRender::QGeometry *geom = new Qt3DRender::QGeometry;
geom->addAttribute( positionAttribute );
geom->addAttribute( indexAttribute );
Qt3DRender::QGeometryRenderer *renderer = new Qt3DRender::QGeometryRenderer;
renderer->setPrimitiveType( Qt3DRender::QGeometryRenderer::LineStrip );
renderer->setGeometry( geom );
renderer->setVertexCount( out.vertices.count() );
renderer->setPrimitiveRestartEnabled( true );
renderer->setRestartIndexValue( 0 );
// make entity
entity->addComponent( renderer );
entity->addComponent( mat );
entity->setParent( parent );
}
void checkInitialAndCleanedUpState()
{
// GIVEN
Qt3DRender::Render::GeometryRenderer renderGeometryRenderer;
// THEN
QVERIFY(renderGeometryRenderer.peerUuid().isNull());
QVERIFY(renderGeometryRenderer.geometryId().isNull());
QCOMPARE(renderGeometryRenderer.isDirty(), false);
QCOMPARE(renderGeometryRenderer.instanceCount(), 0);
QCOMPARE(renderGeometryRenderer.primitiveCount(), 0);
QCOMPARE(renderGeometryRenderer.baseVertex(), 0);
QCOMPARE(renderGeometryRenderer.baseInstance(), 0);
QCOMPARE(renderGeometryRenderer.restartIndex(), -1);
QCOMPARE(renderGeometryRenderer.primitiveRestart(), false);
QCOMPARE(renderGeometryRenderer.primitiveType(), Qt3DRender::QGeometryRenderer::Triangles);
QVERIFY(renderGeometryRenderer.geometryFunctor().isNull());
QVERIFY(renderGeometryRenderer.isEnabled());
// GIVEN
Qt3DRender::QGeometryRenderer geometryRenderer;
Qt3DRender::QGeometry geometry;
Qt3DRender::QGeometryFunctorPtr functor(new TestFunctor(1200));
geometryRenderer.setInstanceCount(454);
geometryRenderer.setPrimitiveCount(350);
geometryRenderer.setBaseVertex(427);
geometryRenderer.setBaseInstance(383);
geometryRenderer.setRestartIndex(555);
geometryRenderer.setPrimitiveRestart(true);
geometryRenderer.setPrimitiveType(Qt3DRender::QGeometryRenderer::Patches);
geometryRenderer.setGeometry(&geometry);
geometryRenderer.setGeometryFunctor(functor);
geometryRenderer.setEnabled(false);
// WHEN
renderGeometryRenderer.updateFromPeer(&geometryRenderer);
renderGeometryRenderer.cleanup();
// THEN
QVERIFY(renderGeometryRenderer.peerUuid().isNull());
QVERIFY(renderGeometryRenderer.geometryId().isNull());
QCOMPARE(renderGeometryRenderer.isDirty(), false);
QCOMPARE(renderGeometryRenderer.instanceCount(), 0);
QCOMPARE(renderGeometryRenderer.primitiveCount(), 0);
QCOMPARE(renderGeometryRenderer.baseVertex(), 0);
QCOMPARE(renderGeometryRenderer.baseInstance(), 0);
QCOMPARE(renderGeometryRenderer.restartIndex(), -1);
QCOMPARE(renderGeometryRenderer.primitiveRestart(), false);
QCOMPARE(renderGeometryRenderer.primitiveType(), Qt3DRender::QGeometryRenderer::Triangles);
QVERIFY(renderGeometryRenderer.geometryFunctor().isNull());
QVERIFY(renderGeometryRenderer.isEnabled());
}
