Hello Andy

Thank you very much for your answer. 
But, even if I have a ABIFChromatogram object and a ChromatogramGraphic
object, I do not understand what you said about setting options. I see a
class Chromatogramgraphic.Option, but I do not know what can I do with
this.

Thank you very much for your help.

Best regards.

> Yup Russ is on the ball with that one 100% :)
> 
> A chromatogram is really a graph of 4 tracks where each scan index  
> refers to an intensity of the 4 dyes used in Sanger Sequencing. There  
> is no direct relation to the size of a chromatogram and the number of  
> base pairs it will represent. If you require any changes to the  
> rendering the options are controlled by ChromatogramGraphic.Option  
> instances in conjunction with the setOption() method in  
> ChromatogramGraphic.
> 
> If you are rendering a processed ABI file and just want to see the  
> base called sequences then the best option is to use the  
> Chromatogram's getBaseCalls() method & look up the start & finish of  
> the base calls. Use this to set where you want rendering to start &  
> stop (again another ChromatogramGraphic.Option).
> 
> Hope this helps,
> 
> Andy

-- 
David Bourgais
Bioinformatician
BioXpr SA/NV
http://www.bioxpr.com
Rue du Seminaire, 22
5000, Namur, Belgium
Phone: +32(0)81 72 51 58

