{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951860,-0.306534,0.000000,0.000000,0.112599,-0.349646,0.930091,0.000000,-0.284844,0.884510,0.369468,0.000000,-1817606.988824,5644103.452328,2341809.717700,1],    "boundingVolume": {    "region": [1.882263,0.378376,1.882427,0.378496,0.000000,18.620205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45791.b3dm"}}}