{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950336,-0.311225,0.000000,0.000000,0.172961,-0.528143,0.831354,0.000000,-0.258199,0.788421,0.558324,0.000000,-1648552.739894,5033911.306317,3540923.841300,1],    "boundingVolume": {    "region": [1.887193,0.592264,1.887364,0.592464,0.000000,8.360055]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/7_1321437.b3dm"}}}