{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950762,-0.309922,0.000000,0.000000,0.173221,-0.531396,0.829224,0.000000,-0.256454,0.786735,0.561498,0.000000,-1637427.176227,5023205.287011,3561096.205133,1],    "boundingVolume": {    "region": [1.885835,0.596085,1.885980,0.596305,0.000000,8.760186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423256.b3dm"}}}