{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949758,-0.312986,0.000000,0.000000,0.174738,-0.530243,0.829644,0.000000,-0.259122,0.786305,0.560874,0.000000,-1654456.866249,5020451.723921,3557132.610300,1],    "boundingVolume": {    "region": [1.889050,0.595376,1.889214,0.595507,0.000000,7.302842]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1355423.b3dm"}}}