{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950526,-0.310645,0.000000,0.000000,0.173778,-0.531734,0.828891,0.000000,-0.256948,0.786220,0.561993,0.000000,-1640584.740011,5019928.953618,3564240.356754,1],    "boundingVolume": {    "region": [1.886619,0.596744,1.886717,0.596842,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395548.b3dm"}}}