{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949941,-0.312431,0.000000,0.000000,0.115821,-0.352150,0.928750,0.000000,-0.289901,0.881438,0.372860,0.000000,-1849887.048872,5624551.107380,2363330.702793,1],    "boundingVolume": {    "region": [1.888514,0.382076,1.888580,0.382103,0.000000,4.701283]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/23/21.b3dm"}}}