{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950702,-0.310104,0.000000,0.000000,0.173225,-0.531064,0.829436,0.000000,-0.256671,0.786888,0.561183,0.000000,-1638810.434683,5024181.148758,3559096.151323,1],    "boundingVolume": {    "region": [1.886041,0.595757,1.886157,0.595872,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425027.b3dm"}}}