{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949275,-0.314447,0.000000,0.000000,0.175690,-0.530387,0.829351,0.000000,-0.260238,0.785625,0.561310,0.000000,-1661587.039627,5016119.020654,3559901.837903,1],    "boundingVolume": {    "region": [1.890602,0.595915,1.890739,0.596021,0.000000,8.781144]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1361259.b3dm"}}}