{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944296,-0.329099,0.000000,0.000000,0.183957,-0.527834,0.829187,0.000000,-0.272310,0.781348,0.561553,0.000000,-1738664.446552,4988815.866932,3561447.824230,1],    "boundingVolume": {    "region": [1.906088,0.596224,1.906203,0.596299,0.000000,8.578076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_729993.b3dm"}}}