{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950648,-0.310272,0.000000,0.000000,0.173587,-0.531857,0.828852,0.000000,-0.256627,0.786284,0.562050,0.000000,-1638534.679959,5020338.609261,3564603.932033,1],    "boundingVolume": {    "region": [1.886193,0.596778,1.886358,0.596947,0.000000,8.793080]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396169.b3dm"}}}