{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950681,-0.310171,0.000000,0.000000,0.173230,-0.530953,0.829506,0.000000,-0.256748,0.786937,0.561080,0.000000,-1639302.953492,5024490.006680,3558437.698656,1],    "boundingVolume": {    "region": [1.886112,0.595632,1.886228,0.595747,0.000000,8.752546]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1424202.b3dm"}}}