{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897082,-0.441864,0.000000,0.000000,0.285504,-0.579637,0.763222,0.000000,-0.336292,0.682748,0.648662,0.000000,-2147944.937659,4360808.303833,4115358.281453,1],    "boundingVolume": {    "region": [2.028420,0.705790,2.028523,0.705860,0.000000,6.146846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/21_1837177.b3dm"}}}