{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949056,-0.315107,0.000000,0.000000,0.176248,-0.530835,0.828946,0.000000,-0.260656,0.785057,0.561911,0.000000,-1664256.789952,5012500.820169,3563723.335400,1],    "boundingVolume": {    "region": [1.891315,0.596684,1.891416,0.596705,0.000000,6.162128]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/14_1421469.b3dm"}}}