{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951178,-0.308643,0.000000,0.000000,0.171333,-0.528015,0.831772,0.000000,-0.256188,0.789520,0.557698,0.000000,-1635703.967580,5040914.551255,3536944.116223,1],    "boundingVolume": {    "region": [1.884509,0.591566,1.884617,0.591653,0.000000,6.136369]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/54/42_1382997.b3dm"}}}