# Matrix Question

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 30/03/2010 at 17:36, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   11.5
Platform:   Windows  ;
Language(s) :     C++  ;

---------
Hello,

I am creating a Matrix that will be used as the matrix for my particles.

I have a few questions about Matrices.

When I Create a matrix like...

Matrix m;

I would like to know the following...

is...   m.off = the center position of the matrix.  Where it is centrally located in global space?

also...  when I define the axis vector (i.e m.v1, m.v2, and m.v3) am I defining the position in global space that the tip of the axis is pointing toward?

If this is true, by defining a matrix like this.

Matrix m;
m.off = Vector(0, 0, 0);
m.v1 = Vector(100, 0, 0);
m.v2 = Vector(0, 100, 0);
m.v3 = Vector(0, 0, 100);

I am creating a matrix that sits at world center with axis that extend outward a perfect center for x, y, and z 100..   Right?

Hopefully these questions make sense.   My ultimate goal is to create a matrix for my particles so that they can be moved, rotated, and scaled with the matrix.

Is my understanding of creating  a matrix correct?

Thanks..

PS   If I am noit correct,  could someone explain to me what the v1, v2, and v3 represent.

Thanks.

~Shawn

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 31/03/2010 at 02:17, xxxxxxxx wrote:

the length of v1,v2 and v3 also defines the scale of the object. Check the C++ AND coffee documentation, it´s explained in there. Otherwise take a look at matrix operations in general in every math book for further information.