{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949745,-0.313024,0.000000,0.000000,0.115343,-0.349961,0.929636,0.000000,-0.290732,0.882108,0.370622,0.000000,-1855179.235153,5628794.528873,2349132.256483,1],    "boundingVolume": {    "region": [1.889103,0.379588,1.889241,0.379769,0.000000,24.418460]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73247.b3dm"}}}