{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950542,-0.310596,0.000000,0.000000,0.173698,-0.531582,0.829005,0.000000,-0.256943,0.786343,0.561823,0.000000,-1640550.200090,5020711.226423,3563161.511011,1],    "boundingVolume": {    "region": [1.886567,0.596538,1.886665,0.596637,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391943.b3dm"}}}