{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950898,-0.309505,0.000000,0.000000,0.173166,-0.532021,0.828835,0.000000,-0.255987,0.786474,0.562076,0.000000,-1634451.735370,5021551.550101,3564768.782815,1],    "boundingVolume": {    "region": [1.885386,0.596809,1.885552,0.596978,0.000000,8.691446]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1387880.b3dm"}}}