|Message: Special cylindrical sector||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
To create a cylindrical sector I can use G4Tubs and set the following parameters: - internal radius - external radius - starting phi - dphi (angular span of the sector) I now want to create a solid which is still a sector of a cylinder but where the starting phi at the internal radius is different from the starting phi at the external radius. To help visualizing this, you may think of an iris diaphragm used in photographic cameras: the solid I have in mind is one sector of this diaphragm. This looks like an extension of the G4Tubs class but I could not figure out how to create it with any of the exisiting geometrical classes. Can anybody help me? Thanks Emanuele Leonardi
|Inline Depth:||Outline Depth:||Add message:|