{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950640,-0.310295,0.000000,0.000000,0.173456,-0.531412,0.829165,0.000000,-0.256744,0.786577,0.561586,0.000000,-1639278.857070,5022201.384828,3561656.423843,1],    "boundingVolume": {    "region": [1.886251,0.596252,1.886349,0.596351,0.000000,8.817654]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/3_1427784.b3dm"}}}