{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895902,-0.444253,0.000000,0.000000,0.283939,-0.572605,0.769091,0.000000,-0.340731,0.687135,0.641676,0.000000,-2176229.819171,4388691.873769,4070915.094323,1],    "boundingVolume": {    "region": [2.031082,0.696628,2.031191,0.696735,0.000000,18.356051]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_618915.b3dm"}}}