{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950526,-0.310645,0.000000,0.000000,0.173774,-0.531722,0.828899,0.000000,-0.256951,0.786228,0.561980,0.000000,-1640601.801299,5019980.920911,3564159.853323,1],    "boundingVolume": {    "region": [1.886619,0.596728,1.886717,0.596827,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395368.b3dm"}}}