{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895721,-0.444616,0.000000,0.000000,0.284201,-0.572551,0.769035,0.000000,-0.340984,0.686946,0.641744,0.000000,-2177847.269620,4387485.035489,4071348.040840,1],    "boundingVolume": {    "region": [2.031481,0.696712,2.031602,0.696829,0.000000,40.183657]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_669346.b3dm"}}}