{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871389,-0.490592,0.000000,0.000000,0.211822,-0.376237,0.901985,0.000000,-0.441950,0.784991,0.434130,0.000000,-2820599.192875,5009941.434770,2752143.108548,1],    "boundingVolume": {    "region": [2.083510,0.449032,2.083622,0.449113,0.000000,74.070240]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_224710.b3dm"}}}