how to get the center of model

[auindoeee]

the output file is only contain the information of all splats,but the information of the whole model does not exist,such as the center or the axial direction of the 3DGS model. So,when i put it in unity,some operations have encountered difficulties. the picture shows that the transform's center is far away from the model's center I want to get the center position by caculating the average value of all splats position,is it feasible? Thanks for your great work!