{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950740,-0.309989,0.000000,0.000000,0.173240,-0.531328,0.829264,0.000000,-0.256522,0.786754,0.561440,0.000000,-1637859.837302,5023329.180650,3560724.955728,1],    "boundingVolume": {    "region": [1.885905,0.596015,1.886051,0.596234,0.000000,8.760186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423057.b3dm"}}}