{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949544,-0.313634,0.000000,0.000000,0.175320,-0.530791,0.829171,0.000000,-0.259508,0.785676,0.561578,0.000000,-1656929.501927,5016444.553548,3561602.122108,1],    "boundingVolume": {    "region": [1.889765,0.596250,1.889863,0.596332,0.000000,8.657915]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1444641.b3dm"}}}