{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949097,-0.314983,0.000000,0.000000,0.116137,-0.349941,0.929545,0.000000,-0.292522,0.881418,0.370853,0.000000,-1866607.240996,5624397.339103,2350601.126576,1],    "boundingVolume": {    "region": [1.891181,0.379870,1.891290,0.379985,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_837.b3dm"}}}