{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952240,-0.305351,0.000000,0.000000,0.169261,-0.527841,0.832307,0.000000,-0.253619,0.790914,0.556895,0.000000,-1619299.324755,5049802.618152,3531844.676112,1],    "boundingVolume": {    "region": [1.881049,0.590599,1.881157,0.590687,0.000000,6.299872]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/20/30_1321805.b3dm"}}}