{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949336,-0.314262,0.000000,0.000000,0.175690,-0.530732,0.829130,0.000000,-0.260015,0.785465,0.561638,0.000000,-1660163.959000,5015101.923900,3561984.136857,1],    "boundingVolume": {    "region": [1.890426,0.596323,1.890525,0.596405,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416842.b3dm"}}}