{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950326,-0.311256,0.000000,0.000000,0.172977,-0.528132,0.831358,0.000000,-0.258226,0.788416,0.558318,0.000000,-1648724.100279,5033881.707228,3540886.387945,1],    "boundingVolume": {    "region": [1.887225,0.592257,1.887396,0.592457,0.000000,8.589323]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/7_1321443.b3dm"}}}