{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950748,-0.309964,0.000000,0.000000,0.173037,-0.530752,0.829675,0.000000,-0.256629,0.787155,0.560829,0.000000,-1638542.250485,5025875.109089,3556842.424933,1],    "boundingVolume": {    "region": [1.885894,0.595329,1.886009,0.595444,0.000000,8.776296]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1341079.b3dm"}}}