{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950771,-0.309894,0.000000,0.000000,0.172944,-0.530603,0.829790,0.000000,-0.256607,0.787284,0.560658,0.000000,-1638398.277753,5026694.236601,3555758.351631,1],    "boundingVolume": {    "region": [1.885820,0.595123,1.885936,0.595238,0.000000,8.766633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1341345.b3dm"}}}