{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949883,-0.312605,0.000000,0.000000,0.114555,-0.348086,0.930437,0.000000,-0.290596,0.883005,0.368587,0.000000,-1854304.157170,5634488.885543,2336223.217201,1],    "boundingVolume": {    "region": [1.888647,0.377364,1.888815,0.377613,0.000000,21.061102]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_14744.b3dm"}}}