{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944313,-0.329049,0.000000,0.000000,0.183966,-0.527950,0.829111,0.000000,-0.272244,0.781291,0.561665,0.000000,-1738244.655963,4988449.543870,3562160.979322,1],    "boundingVolume": {    "region": [1.906036,0.596360,1.906150,0.596435,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_131568.b3dm"}}}