{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310466,0.000000,0.000000,0.173605,-0.531544,0.829049,0.000000,-0.256849,0.786420,0.561758,0.000000,-1639952.610039,5021200.964526,3562749.253186,1],    "boundingVolume": {    "region": [1.886431,0.596460,1.886529,0.596559,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1389974.b3dm"}}}