{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950525,-0.310647,0.000000,0.000000,0.173781,-0.531740,0.828886,0.000000,-0.256948,0.786215,0.562000,0.000000,-1640584.767990,5019897.811035,3564283.911609,1],    "boundingVolume": {    "region": [1.886621,0.596752,1.886719,0.596851,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395643.b3dm"}}}