{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950698,-0.310117,0.000000,0.000000,0.173278,-0.531202,0.829337,0.000000,-0.256650,0.786790,0.561331,0.000000,-1638679.352901,5023553.699590,3560035.729605,1],    "boundingVolume": {    "region": [1.886055,0.595936,1.886170,0.596051,0.000000,8.762143]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/14_1426554.b3dm"}}}