{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942946,-0.332945,0.000000,0.000000,0.186693,-0.528741,0.827997,0.000000,-0.275093,0.779102,0.563316,0.000000,-1756449.099879,4974502.737524,3572648.730066,1],    "boundingVolume": {    "region": [1.910212,0.598383,1.910232,0.598403,0.000000,8.590801]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/6.b3dm"}}}