Hello
everybody:
I'm just looking how to store (wich data I will need) in a file (text file
with any format) the data that an object's transform has.
I
mean, supose I have a scenegraph with an object. And supose I have a function
for storing the state of the scenegraph. I would like to store all the
scenegraph objects and theirs position, rotations, etc. I could achieve this
data inside the object's transform.
I
could achieve this data structures from a Transform3D:
double[]
float[]
Matrix3d
Matrix3d,Vector3d
Matrix3f
Matrix3f,Vector3d
Matrix3f,Vector3f
Matrix4d
Matrix4f
Quat4d
Quat4d,Vector3d
Quat4f
Quat4f,Vector3d
Quat4f,Vector3f
Vector3d
Vector3f
The case is that I have to store all the information, in order to reload
the information for creating the stored scenegraph.
So when reloading and creating the object and it's transform I will need to
instantiate a new Transform3D and I will need the most accurate
information.
Knowing that a Transform3D is like:
m00 m01 m02
m03 x x'
m10 m11 m12
m13 y y'
m20 m21 m22
m23 z = z'
m30 m31 m32
m33 w w'
And it's equations for x', y', etc....
Transform3D's constructor allows:
double[]
float[] -------------------------------------> Both
give 4 x 4 matrix -----> It looks like the better one
GMatrix
¿What's that?!!!! -----------> No idea
Matrix3d,
Vector3d, double
Matrix3f,
Vector3d, double
Matrix3f.
Vector3f, float ---------------> With this three says in the constructor that
give rotation matrix, translation matrix and scale values
----------------> But it says to that scale is applied only to the rotational
component (is there only where it have to be applied?)
Matrix4d
Matrix4f
--------------------------------------> The same that the first
ones
Quat4d,
Vector3d, double
Quat4f,
Vector3d, double
Quat4f,
Vector3f, float ------------------> The quaternion represents all rotations?
Scale is applied only to rotations too
Transform3D -------------------------------> I can´t use it
logically
Which data may I ask to the transform
and use after for constructing a new transform?
I
hope I'm explaining properly...
Thanks in
advance.
| Aitor Illarramendi Amilibia | |
|
Ingeniero de software
Detección, Mando y Control | |
 | |
|
Carretera de Loeches, 9
28850 - Torrejón de Ardoz, Madrid (ESPAÑA) Tel: +34-91-396.82.47 Fax: +34-91-396.81.14 | |
