{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858225,-0.513274,0.000000,0.000000,0.262631,-0.439135,0.859177,0.000000,-0.440215,0.736065,0.514217,0.000000,-2810239.265192,4698883.465755,3260678.845000,1],    "boundingVolume": {    "region": [2.109710,0.540032,2.109874,0.540157,0.000000,108.761311]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/5_128737.b3dm"}}}