{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950809,-0.309778,0.000000,0.000000,0.173150,-0.531453,0.829202,0.000000,-0.256328,0.786753,0.561530,0.000000,-1636620.648240,5023320.869265,3561302.527100,1],    "boundingVolume": {    "region": [1.885683,0.596124,1.885829,0.596344,0.000000,8.774613]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1339021.b3dm"}}}