understanding different position values

[kritskiy]

I'm trying to understand the object position values. Tool Options Position, Symmetry Bounding Box and API .getTransform() all give absolutely different values. How do they correlate? For example if I want to set the Symmetry center to the object pivot, how do I approach that?

[VitalVolokh]

Hello! Thank you for request. To better understand and solve your problem, please send a part of your python script, it is possible that we have a bug in the API.

[kritskiy]

On 10/22/2024 at 11:24 AM, VitalVolokh said:

Hello! Thank you for request. To better understand and solve your problem, please send a part of your python script, it is possible that we have a bug in the API.

Hi Vitaly, I sent via email to Andrew and you! Thank you

Edited October 23, 2024 by kritskiy

[kritskiy]

On 10/22/2024 at 11:24 AM, VitalVolokh said:

Hello! Thank you for request. To better understand and solve your problem, please send a part of your python script, it is possible that we have a bug in the API.

Didn't get any response via email so I'll post the script here:

import coat

transform = coat.Scene.current().getTransform()
row1 = transform.GetRow0()
row2 = transform.GetRow1()
row3 = transform.GetRow2()
row4 = transform.GetRow3()

print(f"row 1: {row1.w} {row1.x} {row1.y} {row1.z}")
print(f"row 2: {row2.w} {row2.x} {row2.y} {row2.z}")
print(f"row 3: {row3.w} {row3.x} {row3.y} {row3.z}")
print(f"row 4: {row4.w} {row4.x} {row4.y} {row4.z}")

In this example I import a cube with a pivot in its corner:

 

After importing to 3DC the Position values seem to be similar to Blender's. In the Symmetry window if I click "Pick from Bounding Box" I'm getting values that I can't understand, how they correlate with position/location.

 

And then if I print out transformation values from a script I'm getting a matrix like this:

 

If my move the object by 100 units in Z axis, I'm getting a different matrix with a weird value:

 

Thanks!

Edited October 28, 2024 by kritskiy