{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949060,-0.315096,0.000000,0.000000,0.176219,-0.530767,0.828995,0.000000,-0.260662,0.785107,0.561838,0.000000,-1664298.209298,5012821.645660,3563255.845472,1],    "boundingVolume": {    "region": [1.891303,0.596595,1.891405,0.596616,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1419797.b3dm"}}}