{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950214,-0.311600,0.000000,0.000000,0.174166,-0.531115,0.829206,0.000000,-0.257836,0.786264,0.561524,0.000000,-1646252.732154,5020199.328015,3561264.922101,1],    "boundingVolume": {    "region": [1.887603,0.596123,1.887741,0.596331,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1341879.b3dm"}}}