Method zoomIn

src/backend/worksheet/plots/cartesian/CartesianPlot.cpp:3055–3068

// zoom

void CartesianPlot::zoomIn(int xIndex, int yIndex, const QPointF& sceneRelPos) {
	setUndoAware(false);
	enableAutoScale(Dimension::X, xIndex, false);
	enableAutoScale(Dimension::Y, yIndex, false);
	setUndoAware(true);
	setRangeDirty(Dimension::X, xIndex, true);
	setRangeDirty(Dimension::Y, yIndex, true);
	zoom(xIndex, Dimension::X, true, sceneRelPos.x()); // zoom in x
	zoom(yIndex, Dimension::Y, true, sceneRelPos.y()); // zoom in y

	Q_D(CartesianPlot);
	d->retransformScales(xIndex, yIndex);
	WorksheetElementContainer::retransform();
}

void CartesianPlot::zoomOut(int xIndex, int yIndex, const QPointF& sceneRelPos) {
	setUndoAware(false);