{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950739,-0.309992,0.000000,0.000000,0.173524,-0.532195,0.828648,0.000000,-0.256332,0.786164,0.562352,0.000000,-1636651.970415,5019577.961794,3566526.580805,1],    "boundingVolume": {    "region": [1.885898,0.597143,1.886064,0.597312,0.000000,8.734268]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1383532.b3dm"}}}