{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315047,0.000000,0.000000,0.176036,-0.530307,0.829329,0.000000,-0.260728,0.785440,0.561343,0.000000,-1664712.637702,5014934.201535,3560109.470223,1],    "boundingVolume": {    "region": [1.891234,0.595954,1.891371,0.596061,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373759.b3dm"}}}