{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310634,0.000000,0.000000,0.173777,-0.531751,0.828880,0.000000,-0.256935,0.786213,0.562008,0.000000,-1640502.997680,5019884.482175,3564339.942410,1],    "boundingVolume": {    "region": [1.886607,0.596762,1.886705,0.596861,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395747.b3dm"}}}