Method calcZoomFactor

source/Gui/SimulationInteractionController.cpp:436–442

}

float SimulationInteractionController::calcZoomFactor(std::chrono::steady_clock::time_point const& lastTimepoint)
{
    auto now = std::chrono::steady_clock::now();
    auto duration = toFloat(std::chrono::duration_cast<std::chrono::milliseconds>(now - lastTimepoint).count());
    _lastZoomTimepoint = now;
    return powf(Viewport::get().getZoomSensitivity(), duration / 15);
}