{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950458,-0.310852,0.000000,0.000000,0.114361,-0.349670,0.929867,0.000000,-0.288786,0.882992,0.370037,0.000000,-1842764.370264,5634427.436703,2345422.035564,1],    "boundingVolume": {    "region": [1.886811,0.379010,1.886960,0.379088,0.000000,11.052271]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_4037.b3dm"}}}