01472nas a2200109 4500008004100000245011700041210006900158260002200227520101100249100002301260856007901283 2013 eng d00aTheory documentation for software to control the pgII phirot2 automated sample mount and analyzing data obtained0 aTheory documentation for software to control the pgII phirot2 au aBerkeleyc09/20133 a

The phirot2 sample holder is a device used for controlling the angle of incidence for anisotropic samples with the pgII photogoniometer.

The first topic covered is how to control the instrument using the allmess command line tool which allows the measurement sequence to be more flexible than the pgc GUI tool usually used for control. A method to monitor drift over long measurement sessions is also covered. Tangential to this is several syntax examples of how bash shell script is used to call allmess. Code to generate bash scripts for samples with different degree of symmetry is discussed as well as how to modify a script to continue from a certain point if a measurement was aborted.

The second half of the document describes how to access the data and compile the data into the Klems XML format. A path for future combination with the Radiance interpolation format is also given.

Finally verification and visualization of BSDF data is discussed.

1 aJonsson, Jacob, C. uhttps://facades.lbl.gov/publications/theory-documentation-software-control