{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949129,-0.314889,0.000000,0.000000,0.116068,-0.349849,0.929588,0.000000,-0.292448,0.881489,0.370744,0.000000,-1866133.962515,5624846.617548,2349906.433613,1],    "boundingVolume": {    "region": [1.891082,0.379752,1.891190,0.379867,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76530.b3dm"}}}