TCanvas creates PDFs with extra blank page ?

Hi,

I use the TCanvas.Print method with the "[" and "]" syntax to full multipage PDF and PS files from a PyRoot script. i.e.

canvas = TCanvas()

# Open the file

canvas.Print("File.pdf[")

# print some pages (after plotting histograms etc.)
canvas.Print("File.pdf")

# Close the file

canvas.Print("File.pdf]")

I've noticed that if I create a PDF, my preferred format, I always seem to get an unwanted extra blank page at the start of the document. If, on the other hand I create PS files instead, I don't. See as examples

<http://www.hep.phy.cam.ac.uk/~jonesc/HPDImageCalibrationByFill.ps> <http://www.hep.phy.cam.ac.uk/~jonesc/HPDImageCalibrationByFill.pdf>

Any ideas why ?

cheers Chris Received on Mon Sep 06 2010 - 12:43:17 CEST