comp.lang.idl-pvwave archive: archive » Re: IDLgrModel rotation axis's origin

Home » Public Forums » archive » Re: IDLgrModel rotation axis's origin

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: IDLgrModel rotation axis's origin [message #46323]

Thu, 17 November 2005 11:33

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

photosalex wrote:

> Do I understand it correct that the origin of the user-defined rotation
> axis of IDLgrModel::Rotate is always [0,0,0], that is any of such
> user-defined rotation axes passes through [0,0,0] ?

Yes. To rotate about another point you need to translate, rotate, then
translate back. For example, to rotate objects contained in oModel
about a line parallel to the Y axis passing thru [1,0,0]:

oModel -> Translate, -1, 0, 0
oModel -> Rotate, [0,1,0], 90
oModel -> Translate, 1, 0, 0

-Rick

Report message to a moderator

[Message index]

Re: IDLgrModel rotation axis's origin

By: Rick Towler on Thu, 17 November 2005 11:33

Previous Topic:	Re: pointers and IF statement
Next Topic:	Re: More Mac Woes

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Dec 01 00:26:40 PST 2025

Total time taken to generate the page: 0.08232 seconds