{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949475,-0.313841,0.000000,0.000000,0.115728,-0.350117,0.929530,0.000000,-0.291457,0.881755,0.370892,0.000000,-1859809.466774,5626546.211684,2350845.044439,1],    "boundingVolume": {    "region": [1.889978,0.379911,1.890087,0.380027,0.000000,18.718792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/4/21_74575.b3dm"}}}