OPAL as modelled in GOPAL (OPAL s Simulation Program)

The root macro opal.C contains the OPAL detector geometry as defined in GOPAL converted by g2root using ROOTs TGeom package.
gunzip opal.C.gz

In a root session you can do:
.L opal.C
opal("XY") // xy (front) View
opal("YZ") // yz (side) View
opal("BOX") // View from 30., 30 degree with a box cut out

This macro was automatically generated from a ZEBRA RZ-File which itself was written in a GROPE session with fullg142.fxinit as INIT. About the last 50 code lines may be modified to vary e.g. the size of the picture (fFrameOGL->Resize(800, 600);) clipping and the viewing angles.

This gopal.gltf has been generated by gltf-exporter written by a Phoenix contributor. It can be viewed with a tool in this reference.