{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950091,-0.311973,0.000000,0.000000,0.174625,-0.531809,0.828665,0.000000,-0.257975,0.785644,0.562328,0.000000,-1647141.686533,5016257.238002,3566370.637161,1],    "boundingVolume": {    "region": [1.887989,0.597106,1.888141,0.597291,0.000000,8.166590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_1331811.b3dm"}}}