|Message: G4Trap||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)|
I want to build a triangular prism (a triangle at the face +pDz and the same trinagle at -pDz). For this I have used G4Trap with:
pTheta = pPhi = 0
pDx2 = pDx4 = 0
pDx1 = pDx3 = (half base of my triangle)
pDy1 = pDy2 = (half height of my triangle)
With this I got an error, supposedly because pDx2 and pDx4 could not be 0. I also have tried to put these values next to zero (for example 0.001) and the error didn't appear.
My two questions are:
- Is it possible to build my triangular prism with pDx2 and pDx4 equal to 0, or with other G4class?
- If I build the triangular prism with G4Trap (with pDx2 = pDx4 = 0.001 ) how can I know which is exactly the center of my triangle? In order to move it accurately
Thank you very much.
|Inline Depth:||Outline Depth:||Add message:|