A 3D related question

[Polo]

Hi !
I've got a 3D matrix related question
I've got a "pivot" that has a position (x,y,z), a rotation (pitch,yaw,roll (euler angles)).
I want it to be translated to the position + a vector (x',y',z') according to the rotation
Ok, i've badly explained that, but does someone has a link or a code ?

[dmoc]

Lets see if I understand: you have a fixed translation T, a rotation R and another translation T' which is a function of the rotation, hence T'(R)? Correct? If so then the order is R, T'(R) then T (or visa versa) or in short R then T'' where T'' is sum of vectors T and T'(R). This is a lot more straight forward than it sounds: rotate, calc and add vectors, translate.

May help to think of operations acting on the origin rather than an object. HTH

[dell_jockey]

What you need is what makes any motion simulator tick. You might want to check out the sources of an open source flight simulator: http://www.flightgear.org/

In general you can combine multiple rotations, translations, whatever into a single 'result' matrix and use this matrix to do the transformation of the coordinates of your 3D objects. This way, the coordinates of your object lists are visited only once per update.