{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950724,-0.310039,0.000000,0.000000,0.173287,-0.531380,0.829221,0.000000,-0.256549,0.786700,0.561503,0.000000,-1638037.355598,5022982.626123,3561129.435918,1],    "boundingVolume": {    "region": [1.885982,0.596152,1.886079,0.596251,0.000000,8.269202]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/0/2_1423273.b3dm"}}}