{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949065,-0.315080,0.000000,0.000000,0.176207,-0.530761,0.829002,0.000000,-0.260652,0.785118,0.561828,0.000000,-1664231.169325,5012888.789513,3563193.120306,1],    "boundingVolume": {    "region": [1.891287,0.596583,1.891388,0.596605,0.000000,10.088252]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1418786.b3dm"}}}