{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949063,-0.315085,0.000000,0.000000,0.176120,-0.530488,0.829195,0.000000,-0.260717,0.785301,0.561542,0.000000,-1664646.438100,5014051.884160,3561374.436724,1],    "boundingVolume": {    "region": [1.891274,0.596195,1.891412,0.596301,0.000000,8.805275]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/11_1446823.b3dm"}}}