{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949085,-0.315021,0.000000,0.000000,0.176002,-0.530255,0.829369,0.000000,-0.260719,0.785485,0.561283,0.000000,-1664655.691500,5015223.681359,3559730.843001,1],    "boundingVolume": {    "region": [1.891206,0.595882,1.891343,0.595989,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1374407.b3dm"}}}