{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949107,-0.314953,0.000000,0.000000,0.175103,-0.527672,0.831205,0.000000,-0.261245,0.787259,0.558547,0.000000,-1667998.760696,5026494.599963,3542343.185051,1],    "boundingVolume": {    "region": [1.891156,0.592538,1.891251,0.592729,0.000000,6.697793]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/15_1321628.b3dm"}}}