SourcesManager::SourcesManager(double maximumLimitValue, bool existence)
	{
		setExistence(existence);
		setMaximumRadius(maximumLimitValue);
		m_zoom = 1.;
	}
SourcesManager::SourcesManager(double aMaximumLimitValue, long deadOrAlive)
{
    setExistence(deadOrAlive);
    setMaximumRadius(aMaximumLimitValue);    
}