{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950711,-0.310078,0.000000,0.000000,0.173206,-0.531057,0.829444,0.000000,-0.256651,0.786904,0.561171,0.000000,-1638685.320178,5024277.116434,3559018.805780,1],    "boundingVolume": {    "region": [1.886013,0.595743,1.886129,0.595857,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1343532.b3dm"}}}