{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949545,-0.313629,0.000000,0.000000,0.175314,-0.530782,0.829177,0.000000,-0.259507,0.785683,0.561568,0.000000,-1656919.320590,5016493.498054,3561538.350190,1],    "boundingVolume": {    "region": [1.889760,0.596238,1.889859,0.596320,0.000000,8.315556]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1444487.b3dm"}}}