{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950913,-0.309460,0.000000,0.000000,0.173071,-0.531817,0.828986,0.000000,-0.255997,0.786631,0.561852,0.000000,-1634510.571374,5022549.294917,3563345.488112,1],    "boundingVolume": {    "region": [1.885338,0.596538,1.885504,0.596707,0.000000,8.765336]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1386521.b3dm"}}}