{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950501,-0.310723,0.000000,0.000000,0.173777,-0.531583,0.828988,0.000000,-0.257042,0.786292,0.561848,0.000000,-1641186.022380,5020387.694001,3563323.475993,1],    "boundingVolume": {    "region": [1.886701,0.596569,1.886798,0.596668,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1392957.b3dm"}}}