{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950637,-0.310306,0.000000,0.000000,0.173358,-0.531089,0.829392,0.000000,-0.256824,0.786792,0.561249,0.000000,-1639787.425148,5023565.553741,3559512.274799,1],    "boundingVolume": {    "region": [1.886253,0.595837,1.886369,0.595951,0.000000,8.645211]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1425750.b3dm"}}}