81 static double calculateEntityGpuMemorySize( Qt3DCore::QEntity *entity );
104 const QString &outputDirectory,
105 const QString &fileNameTemplate,
106 const QSize &outputSize,
115 static int maxZoomLevel(
double tile0width,
double tileResolution,
double maxError );
140 static QString matrix4x4toString(
const QMatrix4x4 &m );
142 static QMatrix4x4 stringToMatrix4x4(
const QString &
str );
151 static bool isCullable(
const QgsAABB &bbox,
const QMatrix4x4 &viewProjectionMatrix );
193 static void estimateVectorLayerZRange(
QgsVectorLayer *layer,
double &zMin,
double &zMax );
202 static QgsRay3D rayFromScreenPoint(
const QPoint &point,
const QSize &windowSize, Qt3DRender::QCamera *camera );
208 static QVector3D screenPointToWorldPos(
const QPoint &screenPoint,
double depth,
const QSize &screenSize, Qt3DRender::QCamera *camera );
214 static void pitchAndYawFromViewVector( QVector3D vect,
double &pitch,
double &yaw );
222 static QVector2D screenToTextureCoordinates( QVector2D screenXY, QSize winSize );
230 static QVector2D textureToScreenCoordinates( QVector2D textureXY, QSize winSize );
240 return ( ( qRed( pixel ) / 255.0 + qGreen( pixel ) ) / 255.0 + qBlue( pixel ) ) / 255.0;
248 static std::unique_ptr< QgsPointCloudLayer3DRenderer > convert2DPointCloudRendererTo3D(
QgsPointCloudRenderer *renderer );
257 static QHash<QgsMapLayer *, QVector<QgsRayCastingUtils::RayHit>> castRay(
Qgs3DMapScene *scene,
const QgsRay3D &ray,
const QgsRayCastingUtils::RayCastContext &context );
283 static float screenSpaceError(
float epsilon,
float distance,
int screenSize,
float fov );
297 static void computeBoundingBoxNearFarPlanes(
const QgsAABB &bbox,
const QMatrix4x4 &viewMatrix,
float &fnear,
float &ffar );
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...