{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951013,-0.309150,0.000000,0.000000,0.115902,-0.356540,0.927063,0.000000,-0.286330,0.880812,0.377074,0.000000,-1827121.648843,5620618.365107,2390064.540217,1],    "boundingVolume": {    "region": [1.885014,0.386583,1.885178,0.386686,0.000000,13.140947]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/13_60831.b3dm"}}}