{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950579,-0.310482,0.000000,0.000000,0.172398,-0.527817,0.831678,0.000000,-0.257684,0.788933,0.557839,0.000000,-1645258.452555,5037170.111300,3537841.119730,1],    "boundingVolume": {    "region": [1.886411,0.591680,1.886581,0.591879,0.000000,6.653880]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/4_1462558.b3dm"}}}