{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892971,-0.450115,0.000000,0.000000,0.290377,-0.576070,0.764084,0.000000,-0.342962,0.680392,0.647644,0.000000,-2190535.338417,4345741.380606,4108884.992722,1],    "boundingVolume": {    "region": [2.037638,0.704454,2.037743,0.704523,0.000000,15.909263]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/12_1970133.b3dm"}}}