Hi Karoly, Phi and theta are the angles (azimutal/polar) of the axis that passes through the "centers" of the trapezoid Z faces. If theta is zero this axis is parallel with the Z axis no matter what phi is. To tilt your trapezoid you have to define theta>0. You have more freedom in defining such a shape by using TGeoArb8 instead (you can define one-by-one all vertices - see /geom/src/TGeoArb8.cxx) Regards, Andrei Makonyi Karoly wrote: >Hi, >I tried to define a TTRAP shape with not zero "phi". >If the theta is zero it is no matter what is the phi it doesn't tilt the >shape. And I need a tilted TTRAP shape ... > >What is the solution? >k. > > > >
This archive was generated by hypermail 2b29 : Sun Jan 02 2005 - 05:50:08 MET