{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897083,-0.441863,0.000000,0.000000,0.285502,-0.579636,0.763224,0.000000,-0.336292,0.682750,0.648660,0.000000,-2147943.354833,4360819.963110,4115346.830063,1],    "boundingVolume": {    "region": [2.028419,0.705788,2.028522,0.705857,0.000000,6.146846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/21_1837170.b3dm"}}}