{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949057,-0.315105,0.000000,0.000000,0.176137,-0.530502,0.829182,0.000000,-0.260729,0.785284,0.561560,0.000000,-1664725.115628,5013941.399503,3561492.412996,1],    "boundingVolume": {    "region": [1.891295,0.596217,1.891432,0.596324,0.000000,8.634933]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1447228.b3dm"}}}