{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950528,-0.310640,0.000000,0.000000,0.173782,-0.531754,0.828877,0.000000,-0.256940,0.786209,0.562012,0.000000,-1640531.614658,5019856.897054,3564365.448971,1],    "boundingVolume": {    "region": [1.886614,0.596767,1.886712,0.596866,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395794.b3dm"}}}