{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950048,-0.312103,0.000000,0.000000,0.174039,-0.529778,0.830088,0.000000,-0.258530,0.786971,0.560214,0.000000,-1650673.626551,5024687.086069,3552935.801745,1],    "boundingVolume": {    "region": [1.888120,0.594578,1.888284,0.594710,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458939.b3dm"}}}