{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948838,-0.315762,0.000000,0.000000,0.176402,-0.530073,0.829400,0.000000,-0.261342,0.785311,0.561237,0.000000,-1668635.406772,5014110.941781,3559437.070353,1],    "boundingVolume": {    "region": [1.891987,0.595826,1.892125,0.595933,0.000000,8.775112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/8_1069218.b3dm"}}}