{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950488,-0.310762,0.000000,0.000000,0.173483,-0.530610,0.829672,0.000000,-0.257289,0.786937,0.560832,0.000000,-1642755.084521,5024483.128462,3556865.651822,1],    "boundingVolume": {    "region": [1.886741,0.595332,1.886841,0.595449,0.000000,8.772266]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_1450816.b3dm"}}}