{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949117,-0.314925,0.000000,0.000000,0.115906,-0.349317,0.929808,0.000000,-0.292552,0.881689,0.370186,0.000000,-1866792.080071,5626115.835620,2346366.480123,1],    "boundingVolume": {    "region": [1.891120,0.379151,1.891228,0.379267,0.000000,18.706375]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/15_6598.b3dm"}}}