{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898088,-0.439815,0.000000,0.000000,0.284303,-0.580537,0.762987,0.000000,-0.334629,0.683302,0.648939,0.000000,-2137326.166432,4364347.140739,4117123.179439,1],    "boundingVolume": {    "region": [2.026123,0.706078,2.026256,0.706301,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820738.b3dm"}}}