{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949066,-0.315077,0.000000,0.000000,0.176056,-0.530312,0.829321,0.000000,-0.260750,0.785424,0.561355,0.000000,-1664855.127073,5014832.337262,3560185.813037,1],    "boundingVolume": {    "region": [1.891265,0.595969,1.891403,0.596075,0.000000,13.117660]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373637.b3dm"}}}