{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949135,-0.314868,0.000000,0.000000,0.174945,-0.527351,0.831442,0.000000,-0.261250,0.787509,0.558192,0.000000,-1668027.394253,5028083.986869,3540088.519036,1],    "boundingVolume": {    "region": [1.891067,0.592110,1.891161,0.592301,0.000000,8.627431]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/13_1321666.b3dm"}}}