{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950024,-0.312178,0.000000,0.000000,0.174080,-0.529763,0.830088,0.000000,-0.258592,0.786951,0.560213,0.000000,-1651070.843497,5024560.467616,3552930.337668,1],    "boundingVolume": {    "region": [1.888199,0.594577,1.888363,0.594709,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460854.b3dm"}}}