Transcript PowerPoint - CERN Webcast

DAWN
DAWN
• DAWN is a vectorized 3D PostScript processor developed at the
Fukui University
• Well suited to prepare high quality outputs for presentation
and/or documentation
• Useful for detector geometry debugging (it comes with a facility,
DAVID, which allows to detect overlapping volumes)
• Remote visualization, cut view, off-line re-visualization are
supported by DAWN
• A DAWN process is automatically invoked as a co-process of
Geant4 when visualization is performed and 3D data is passed
with inter-process communication via a file or the TCP/IP socket
DAWN (2)
• There are two kinds of DAWN drivers
– DAWN-File
– DAWN-Network
• The DAWN-File driver send 3D data to DAWN via an
intermediate file (called g4.prim) in the current directory. The
contents of the file can be re-visualized (without running
Geant4) by simply running DAWN on it
dawn g4.prim
• The DAWN-Network driver send 3D data to DAWN via the
TCP/IP socket or the named pipe and it can be used to perform
remote visualization
• If you have no network, set the environment variable
G4DAWN_NAMED_PIPE to 1, to switch the default socket
connection to the named pipe within the same host machine
DAWN GUI (page 1)
Next page
Camera
distance
Camera
Position
Angles
Size
Viewing
mode
Axes
DAWN GUI (page 2)
DAWN GUI (page 3)
DAWN GUI (page 4)
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