void Document::initializeGridDisplay (const Transformation &transformation) { LOG4CPP_INFO_S ((*mainCat)) << "Document::initializeGridDisplay"; ENGAUGE_ASSERT (!m_coordSystemContext.modelGridDisplay().stable()); // Get graph coordinate bounds CallbackBoundingRects ftor (m_documentAxesPointsRequired, transformation); Functor2wRet<const QString &, const Point &, CallbackSearchReturn> ftorWithCallback = functor_ret (ftor, &CallbackBoundingRects::callback); iterateThroughCurvePointsAxes (ftorWithCallback); // Initialize. Note that if there are no graph points then these next steps have no effect bool isEmpty; QPointF boundingRectGraphMin = ftor.boundingRectGraphMin (isEmpty); QPointF boundingRectGraphMax = ftor.boundingRectGraphMax (isEmpty); if (!isEmpty) { GridInitializer gridInitializer; DocumentModelGridDisplay modelGridDisplay = gridInitializer.initializeWithWidePolarCoverage (boundingRectGraphMin, boundingRectGraphMax, modelCoords(), transformation, m_pixmap.size ()); m_coordSystemContext.setModelGridDisplay (modelGridDisplay); } }
void DlgSettingsExportFormat::initializeIntervalConstraints () { LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsExportFormat::initializeIntervalConstraints"; const int MAX_POINTS_ACROSS_RANGE = 1000; // Get min and max of graph and screen coordinates CallbackBoundingRects ftor (mainWindow().transformation()); Functor2wRet<const QString &, const Point &, CallbackSearchReturn> ftorWithCallback = functor_ret (ftor, &CallbackBoundingRects::callback); cmdMediator().iterateThroughCurvesPointsGraphs (ftorWithCallback); // If there are no points, then interval will be zero. That special case must be handled downstream to prevent infinite loops bool isEmpty; double maxSizeGraph = qMax (ftor.boundingRectGraph(isEmpty).width(), ftor.boundingRectGraph(isEmpty).height()); double maxSizeScreen = qMax (ftor.boundingRectScreen(isEmpty).width(), ftor.boundingRectScreen(isEmpty).height()); m_minIntervalGraph = maxSizeGraph / MAX_POINTS_ACROSS_RANGE; m_minIntervalScreen = maxSizeScreen / MAX_POINTS_ACROSS_RANGE; }