{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943353,-0.331790,0.000000,0.000000,0.186130,-0.529209,0.827825,0.000000,-0.274082,0.779274,0.563570,0.000000,-1749991.114606,4975611.545718,3574262.579310,1],    "boundingVolume": {    "region": [1.908925,0.598652,1.909069,0.598749,0.000000,8.201374]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_544956.b3dm"}}}