{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950703,-0.310104,0.000000,0.000000,0.173349,-0.531445,0.829166,0.000000,-0.256586,0.786630,0.561584,0.000000,-1638272.971338,5022538.541756,3561643.900181,1],    "boundingVolume": {    "region": [1.886050,0.596250,1.886148,0.596348,0.000000,8.819616]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/3_1427774.b3dm"}}}