{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950527,-0.310641,0.000000,0.000000,0.173781,-0.531749,0.828881,0.000000,-0.256941,0.786212,0.562007,0.000000,-1640542.726026,5019876.360583,3564333.141016,1],    "boundingVolume": {    "region": [1.886615,0.596761,1.886713,0.596860,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395739.b3dm"}}}