{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949088,-0.315011,0.000000,0.000000,0.116125,-0.349869,0.929573,0.000000,-0.292557,0.881437,0.370781,0.000000,-1866828.850854,5624516.313392,2350143.497006,1],    "boundingVolume": {    "region": [1.891210,0.379792,1.891319,0.379908,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_77073.b3dm"}}}