5 INTERACTIVE COMMANDS

In particular one can perform the following operations with a single geometry module or with a complete STAR detector:

• GDROP - clear ZEBRA memory by droping all previously created banks.
• EXEC GEOM module-name - to compile, link and execute a module written in a separate file. The name of the file should be the same as the module name with the extension .g .
• DEBUG ON - to switch on the debugging mode with the level of printout defined by the module PRIN flag (see below). Most of the parameters of the created volumes, materials, media and rotation matrices can be printed without modifying a single line of the code.
• RZ/FILE 1 STAR.geom I - to read in a geometry file of the STAR detector from the current directory.
• DRAW ... or DCUT ... - to draw different views of the selected system or its parts using GEANT graphics. In the debug mode (after DEBUG ON command) an isometric view of the system is drawn automatically.
• DTREE ... - to draw the logical tree of the GEANT volumes with their generated nicknames and dimensions.
• DISP detm detm.rz - to survey the tree of the created data structures, to navigate through them, to see the actual content of each created bank with its description, extracted from the module by the AgSTAR interface.
• GDUMP path option - to dump the content of all or of a selected part of detector description banks from the DETM geometry data base. The dump may be written in a file (option F), as a plain text, SGML(S) or HTMP(H) formated text, or as set of numbers to be read in by another program (option C)
• GKINE Npart Ptype Pmin Pmax Ymin Ymax PhiMin PhiMax to define parameters of simulated particles