{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898818,-0.438322,0.000000,0.000000,0.283049,-0.580418,0.763543,0.000000,-0.333738,0.684359,0.648284,0.000000,-2131626.076627,4371089.346805,4112951.731886,1],    "boundingVolume": {    "region": [2.024444,0.705269,2.024610,0.705388,0.000000,8.550842]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1843397.b3dm"}}}