Hi Miro,
Simply run Root in batch mode. You will not get graphics on the screen,
but you will still be able to print your TCanvas on a ps file. Example
cd $ROOTSYS/tutorials
root -b
root > .x gerrors2.C
root > c1.Print("c1.ps")
You can also do root -b -q myscript.C
Rene Brun
On Tue, 7 Jan 2003, Miroslav Helbich wrote:
>
> Dear rooters,
>
> I have a following problem.
>
> We save the data "online" from a detector using ROOT I/O and files
> (*.root). What we want to do now is to make a bunch of plots in a "ps"
> format from a batch mode - eg. drawing histograms from the tree into the
> Canvas and then saving results as a postcript files all this done WITHOUT
> having to display the canvas on the screen.
>
> How can I do it? As far as I know the canvas constructor immediately
> draws the canvas on the screen.
>
> Miro
>
>
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