{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949591,-0.313493,0.000000,0.000000,0.175235,-0.530797,0.829185,0.000000,-0.259396,0.785728,0.561557,0.000000,-1656211.199151,5016776.112794,3561470.096086,1],    "boundingVolume": {    "region": [1.889616,0.596225,1.889715,0.596307,0.000000,12.700957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1444241.b3dm"}}}