{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949474,-0.313845,0.000000,0.000000,0.175437,-0.530748,0.829173,0.000000,-0.259684,0.785621,0.561573,0.000000,-1658050.398018,5016093.452298,3561575.165419,1],    "boundingVolume": {    "region": [1.889987,0.596245,1.890086,0.596327,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444577.b3dm"}}}