{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949079,-0.315039,0.000000,0.000000,0.176185,-0.530769,0.829001,0.000000,-0.260617,0.785129,0.561829,0.000000,-1664013.120762,5012956.764012,3563199.283459,1],    "boundingVolume": {    "region": [1.891244,0.596584,1.891345,0.596606,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1418886.b3dm"}}}