{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949479,-0.313832,0.000000,0.000000,0.175424,-0.530735,0.829185,0.000000,-0.259676,0.785635,0.561557,0.000000,-1658003.062699,5016183.597937,3561470.940880,1],    "boundingVolume": {    "region": [1.889973,0.596225,1.890072,0.596307,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444247.b3dm"}}}