How Block xform works?

[hali1 (hali)]

Hi, I understand that block in Rhino use a 4x4 matrix to control its transformation, but I am curious about what each of these matrix items means. Not sure if I understand it correctly, the first 3 rows seems to be related to x,y,z. Then what does the 4th row do?

Thanks in advance!

[djordje]

Hi @hali1 ,
Here is a similar topic:

Rhino Transform Matrix

Hi, Would it be possible to know what each row of rhino transform matrix controls? Is the third column responsible for translation? Is there any documentation for contruction matrices? [Matrices]

[hali1 (hali)]

Thanks, it helps!