{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949111,-0.314942,0.000000,0.000000,0.116100,-0.349878,0.929573,0.000000,-0.292493,0.881458,0.370782,0.000000,-1866418.602736,5624650.374019,2350148.460562,1],    "boundingVolume": {    "region": [1.891138,0.379793,1.891246,0.379909,0.000000,65.531640]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_77070.b3dm"}}}