{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950472,-0.310810,0.000000,0.000000,0.114360,-0.349719,0.929849,0.000000,-0.288742,0.882987,0.370083,0.000000,-1842483.395737,5634396.148867,2345715.939902,1],    "boundingVolume": {    "region": [1.886768,0.379059,1.886916,0.379138,0.000000,21.148113]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_4296.b3dm"}}}