{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950767,-0.309907,0.000000,0.000000,0.172951,-0.530599,0.829791,0.000000,-0.256618,0.787281,0.560656,0.000000,-1638469.991331,5026678.774416,3555747.240580,1],    "boundingVolume": {    "region": [1.885834,0.595121,1.885949,0.595235,0.000000,8.761658]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1341346.b3dm"}}}