{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950753,-0.309950,0.000000,0.000000,0.173135,-0.531082,0.829444,0.000000,-0.256545,0.786937,0.561172,0.000000,-1638006.031849,5024493.150436,3559026.472819,1],    "boundingVolume": {    "region": [1.885863,0.595692,1.886009,0.595911,0.000000,8.813958]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/12_1340125.b3dm"}}}