{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871386,-0.490599,0.000000,0.000000,0.211879,-0.376332,0.901932,0.000000,-0.441930,0.784941,0.434241,0.000000,-2820469.263148,5009626.446107,2752844.828229,1],    "boundingVolume": {    "region": [2.083517,0.449155,2.083629,0.449236,0.000000,94.379445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_227029.b3dm"}}}