{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949534,-0.313664,0.000000,0.000000,0.175142,-0.530194,0.829590,0.000000,-0.259666,0.786068,0.560955,0.000000,-1657931.348386,5018940.673170,3557643.756132,1],    "boundingVolume": {    "region": [1.889765,0.595406,1.889927,0.595671,0.000000,8.792672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1367053.b3dm"}}}