{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949119,-0.314919,0.000000,0.000000,0.116093,-0.349886,0.929571,0.000000,-0.292471,0.881463,0.370787,0.000000,-1866279.006111,5624682.737064,2350181.640836,1],    "boundingVolume": {    "region": [1.891114,0.379799,1.891222,0.379914,0.000000,69.067500]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_77150.b3dm"}}}