{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950413,-0.310989,0.000000,0.000000,0.173497,-0.530223,0.829917,0.000000,-0.257554,0.787109,0.560469,0.000000,-1644442.807729,5025577.774141,3554554.109224,1],    "boundingVolume": {    "region": [1.886939,0.594879,1.887121,0.595024,0.000000,8.769104]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1449288.b3dm"}}}