{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949121,-0.314912,0.000000,0.000000,0.116090,-0.349885,0.929572,0.000000,-0.292465,0.881466,0.370785,0.000000,-1866240.092545,5624700.423483,2350170.289327,1],    "boundingVolume": {    "region": [1.891106,0.379797,1.891215,0.379912,0.000000,69.067500]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_77133.b3dm"}}}