{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949641,-0.313340,0.000000,0.000000,0.174772,-0.529682,0.829995,0.000000,-0.259525,0.786545,0.560352,0.000000,-1657027.992408,5021969.636777,3553813.963187,1],    "boundingVolume": {    "region": [1.889423,0.594678,1.889585,0.594944,0.000000,8.789707]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1379454.b3dm"}}}