{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952240,-0.305351,0.000000,0.000000,0.169263,-0.527848,0.832302,0.000000,-0.253617,0.790909,0.556903,0.000000,-1619288.050929,5049772.964175,3531891.925116,1],    "boundingVolume": {    "region": [1.881049,0.590608,1.881157,0.590696,0.000000,5.875170]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/20/30_1321801.b3dm"}}}