{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950499,-0.310727,0.000000,0.000000,0.173660,-0.531217,0.829247,0.000000,-0.257127,0.786539,0.561465,0.000000,-1641725.273819,5021953.473593,3560884.286422,1],    "boundingVolume": {    "region": [1.886706,0.596105,1.886803,0.596204,0.000000,8.777676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/1_1427226.b3dm"}}}