{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949063,-0.315087,0.000000,0.000000,0.176214,-0.530767,0.828996,0.000000,-0.260656,0.785111,0.561836,0.000000,-1664256.879901,5012842.721865,3563245.568036,1],    "boundingVolume": {    "region": [1.891294,0.596593,1.891396,0.596615,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1419577.b3dm"}}}