{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951830,-0.306627,0.000000,0.000000,0.112644,-0.349668,0.930077,0.000000,-0.284927,0.884468,0.369503,0.000000,-1818133.814398,5643841.032304,2342031.709388,1],    "boundingVolume": {    "region": [1.882362,0.378413,1.882526,0.378534,0.000000,27.454553]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_46090.b3dm"}}}