{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950577,-0.310488,0.000000,0.000000,0.173643,-0.531620,0.828992,0.000000,-0.256849,0.786360,0.561842,0.000000,-1639953.837743,5020820.178968,3563281.703648,1],    "boundingVolume": {    "region": [1.886454,0.596561,1.886551,0.596660,0.000000,14.679444]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1392696.b3dm"}}}