{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950745,-0.309974,0.000000,0.000000,0.172998,-0.530616,0.829770,0.000000,-0.256667,0.787243,0.560687,0.000000,-1638782.465595,5026438.603601,3555941.442054,1],    "boundingVolume": {    "region": [1.885904,0.595158,1.886020,0.595272,0.000000,8.761658]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1341292.b3dm"}}}