{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949732,-0.313065,0.000000,0.000000,0.115372,-0.349998,0.929619,0.000000,-0.290764,0.882079,0.370666,0.000000,-1855389.074847,5628607.603840,2349412.511604,1],    "boundingVolume": {    "region": [1.889146,0.379635,1.889284,0.379817,0.000000,42.444313]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73514.b3dm"}}}