{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949563,-0.313577,0.000000,0.000000,0.174952,-0.529781,0.829894,0.000000,-0.259690,0.786383,0.560503,0.000000,-1658081.964918,5020938.795267,3554772.339111,1],    "boundingVolume": {    "region": [1.889673,0.594860,1.889835,0.595126,0.000000,8.553826]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1371771.b3dm"}}}