{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310632,0.000000,0.000000,0.173358,-0.530472,0.829787,0.000000,-0.257218,0.787082,0.560661,0.000000,-1642298.640196,5025406.178178,3555779.552313,1],    "boundingVolume": {    "region": [1.886563,0.595111,1.886746,0.595257,0.000000,8.365957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/15_1345784.b3dm"}}}