{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951605,-0.307324,0.000000,0.000000,0.114836,-0.355580,0.927564,0.000000,-0.284794,0.881843,0.375827,0.000000,-1817312.231615,5627174.616563,2382156.431322,1],    "boundingVolume": {    "region": [1.883128,0.385252,1.883223,0.385327,0.000000,8.325846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/16/50_38818.b3dm"}}}