{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949109,-0.314948,0.000000,0.000000,0.175980,-0.530323,0.829330,0.000000,-0.260646,0.785468,0.561341,0.000000,-1664192.989276,5015113.513465,3560099.893666,1],    "boundingVolume": {    "region": [1.891130,0.595952,1.891267,0.596059,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1445009.b3dm"}}}