{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949673,-0.313244,0.000000,0.000000,0.174766,-0.529842,0.829894,0.000000,-0.259414,0.786474,0.560502,0.000000,-1656322.110616,5021521.637666,3554769.502425,1],    "boundingVolume": {    "region": [1.889323,0.594860,1.889485,0.595125,0.000000,8.782894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357950.b3dm"}}}