{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898086,-0.439821,0.000000,0.000000,0.284300,-0.580523,0.762998,0.000000,-0.334638,0.683310,0.648926,0.000000,-2137382.507905,4364398.858433,4117039.668867,1],    "boundingVolume": {    "region": [2.026129,0.706061,2.026261,0.706284,0.000000,8.444342]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820509.b3dm"}}}