{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898041,-0.439913,0.000000,0.000000,0.281299,-0.574245,0.768839,0.000000,-0.337291,0.688547,0.641979,0.000000,-2154259.955455,4397720.573707,4072843.509525,1],    "boundingVolume": {    "region": [2.026251,0.697049,2.026344,0.697105,0.000000,41.155348]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_391072.b3dm"}}}