PHENIX Public Relations Event Display
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PHENIX Public Relations Event Display
Jeffery T. Mitchell and Jerome Lauret
PHENIX Computing Meeting
4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
Old Birdseye Event Display• OpenGL-based
• Never developed fully
• Input model not matched to DSTs
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
A New PHENIX Public-Relations Display
• When first data comes, STAR will be sure to get an event display to the media.
• First impressions are important. We should be there, too.
• In offline, we don’t currently have a package that will do the job. ROOT will show events, but it isn’t that pretty.
• Kyle’s software won’t yet work on the central arm, and is unlikely to be there in time.
• So, here is another solution...
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
The Competition
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
Pov-Ray Based Event Display• Run the Reconstruction chain as would be done
normally.• A ROOT macro has been written to extract the
coordinate and track information from the DST files.
• The output of the ROOT macro is a Pov-Ray include file that can be processed in Pov-Ray.
• The detector geometry is hard-coded in a separate file.
• Processing time in Pov-Ray is about 2 minutes on my 450 MHz PC.
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00
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PHENIX Computing Meeting - Jeffery T. Mitchell (BNL) - 4/12/00