{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949878,-0.312621,0.000000,0.000000,0.174741,-0.530939,0.829198,0.000000,-0.258679,0.785978,0.561537,0.000000,-1651633.043273,5018373.951820,3561345.880471,1],    "boundingVolume": {    "region": [1.888662,0.596140,1.888833,0.596345,0.000000,21.329116]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1438459.b3dm"}}}