{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948470,-0.316867,0.000000,0.000000,0.115831,-0.346715,0.930791,0.000000,-0.294671,0.882031,0.367683,0.000000,-1880302.440401,5628260.421787,2330488.265998,1],    "boundingVolume": {    "region": [1.893173,0.376489,1.893268,0.376543,0.000000,49.997192]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/9_29848.b3dm"}}}