{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950617,-0.310368,0.000000,0.000000,0.173210,-0.530521,0.829786,0.000000,-0.256998,0.787153,0.560663,0.000000,-1640896.487665,5025857.670283,3555788.697381,1],    "boundingVolume": {    "region": [1.886318,0.595129,1.886434,0.595243,0.000000,8.806847]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_1449952.b3dm"}}}