{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950193,-0.311662,0.000000,0.000000,0.174234,-0.531204,0.829135,0.000000,-0.257865,0.786179,0.561630,0.000000,-1646439.974330,5019659.017474,3561935.396441,1],    "boundingVolume": {    "region": [1.887669,0.596250,1.887807,0.596459,0.000000,8.750392]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1397348.b3dm"}}}