if (pxsDims == null) renderingControl.getPixelsDims();
	ChannelData[] getChannelData()	{		if (pxsDims == null) renderingControl.getPixelsDims();		if (channelData == null) channelData = new ChannelData[pxsDims.sizeW];		for (int i = 0; i < pxsDims.sizeW; i++)			channelData[i] = new ChannelData(i, i, "Wavelenth "+i);					return channelData;	}