{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951585,-0.307387,0.000000,0.000000,0.114752,-0.355241,0.927705,0.000000,-0.284896,0.881959,0.375477,0.000000,-1817965.433522,5627909.470061,2379935.948609,1],    "boundingVolume": {    "region": [1.883195,0.384874,1.883290,0.384949,0.000000,6.659660]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/16/45_38501.b3dm"}}}