{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944016,-0.329899,0.000000,0.000000,0.184323,-0.527444,0.829354,0.000000,-0.273028,0.781276,0.561306,0.000000,-1743246.681893,4988347.741675,3559873.842239,1],    "boundingVolume": {    "region": [1.906946,0.595905,1.907041,0.596020,0.000000,8.773497]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1271392.b3dm"}}}