{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949103,-0.314965,0.000000,0.000000,0.176058,-0.530527,0.829183,0.000000,-0.260614,0.785323,0.561559,0.000000,-1663987.219662,5014192.709077,3561483.498916,1],    "boundingVolume": {    "region": [1.891148,0.596215,1.891285,0.596322,0.000000,8.262762]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1447200.b3dm"}}}