{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944276,-0.329155,0.000000,0.000000,0.183928,-0.527651,0.829310,0.000000,-0.272397,0.781449,0.561371,0.000000,-1739221.014183,4989454.777091,3560288.660216,1],    "boundingVolume": {    "region": [1.906163,0.596010,1.906247,0.596073,0.000000,8.797946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/1.b3dm"}}}