{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949738,-0.313044,0.000000,0.000000,0.174884,-0.530578,0.829399,0.000000,-0.259092,0.786055,0.561239,0.000000,-1654271.857170,5018858.761984,3559450.187253,1],    "boundingVolume": {    "region": [1.889117,0.595798,1.889270,0.595966,0.000000,8.820307]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1351981.b3dm"}}}