{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950393,-0.311052,0.000000,0.000000,0.174036,-0.531753,0.828825,0.000000,-0.257264,0.786047,0.562091,0.000000,-1642600.490722,5018824.647791,3564862.856112,1],    "boundingVolume": {    "region": [1.887047,0.596862,1.887145,0.596961,0.000000,8.787276]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1326910.b3dm"}}}