{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949378,-0.314136,0.000000,0.000000,0.175220,-0.529546,0.829987,0.000000,-0.260182,0.786319,0.560364,0.000000,-1661225.807786,5020530.705607,3553886.780241,1],    "boundingVolume": {    "region": [1.890262,0.594692,1.890424,0.594958,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1379390.b3dm"}}}