{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949476,-0.313841,0.000000,0.000000,0.175452,-0.530804,0.829135,0.000000,-0.259668,0.785585,0.561631,0.000000,-1657948.513633,5015864.391281,3561942.699286,1],    "boundingVolume": {    "region": [1.889982,0.596315,1.890081,0.596397,0.000000,10.281829]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1409059.b3dm"}}}