{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950494,-0.310742,0.000000,0.000000,0.173471,-0.530612,0.829674,0.000000,-0.257273,0.786943,0.560830,0.000000,-1642652.290752,5024525.838786,3556852.878665,1],    "boundingVolume": {    "region": [1.886720,0.595330,1.886820,0.595447,0.000000,8.772266]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_1450795.b3dm"}}}