{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949642,-0.313336,0.000000,0.000000,0.174771,-0.529686,0.829993,0.000000,-0.259521,0.786543,0.560356,0.000000,-1657001.643326,5021961.226619,3553837.971487,1],    "boundingVolume": {    "region": [1.889419,0.594683,1.889581,0.594948,0.000000,8.789707]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1379437.b3dm"}}}