{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950393,-0.311051,0.000000,0.000000,0.173973,-0.531561,0.828961,0.000000,-0.257306,0.786178,0.561888,0.000000,-1642867.071144,5019656.417036,3563577.331983,1],    "boundingVolume": {    "region": [1.887046,0.596617,1.887144,0.596716,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394284.b3dm"}}}