{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871367,-0.490633,0.000000,0.000000,0.211798,-0.376154,0.902025,0.000000,-0.442006,0.785006,0.434046,0.000000,-2820956.374433,5010036.163127,2751608.129445,1],    "boundingVolume": {    "region": [2.083556,0.448939,2.083668,0.449019,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221704.b3dm"}}}