{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950305,-0.311320,0.000000,0.000000,0.173890,-0.530801,0.829465,0.000000,-0.257686,0.786587,0.561140,0.000000,-1645291.286305,5022258.532962,3558821.470485,1],    "boundingVolume": {    "region": [1.887328,0.595704,1.887428,0.595821,0.000000,8.472028]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1428844.b3dm"}}}