{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949649,-0.313314,0.000000,0.000000,0.175045,-0.530556,0.829379,0.000000,-0.259310,0.785962,0.561268,0.000000,-1655658.965641,5018268.103891,3559636.773664,1],    "boundingVolume": {    "region": [1.889428,0.595877,1.889527,0.595958,0.000000,8.909032]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1351298.b3dm"}}}