{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949909,-0.312525,0.000000,0.000000,0.174499,-0.530384,0.829604,0.000000,-0.258727,0.786392,0.560934,0.000000,-1651939.722262,5021009.856045,3557512.111647,1],    "boundingVolume": {    "region": [1.888565,0.595448,1.888729,0.595579,0.000000,8.669308]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1354815.b3dm"}}}