{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950634,-0.310316,0.000000,0.000000,0.173214,-0.530631,0.829715,0.000000,-0.256933,0.787099,0.560768,0.000000,-1640480.795086,5025515.157304,3556460.016915,1],    "boundingVolume": {    "region": [1.886264,0.595256,1.886379,0.595371,0.000000,7.689004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_1345416.b3dm"}}}