{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951243,-0.308443,0.000000,0.000000,0.170889,-0.527024,0.832492,0.000000,-0.256245,0.790263,0.556617,0.000000,-1636064.602410,5045642.181409,3530075.832265,1],    "boundingVolume": {    "region": [1.884267,0.590246,1.884437,0.590370,0.000000,4.969675]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/8/16_1322946.b3dm"}}}