{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950121,-0.311881,0.000000,0.000000,0.173882,-0.529718,0.830159,0.000000,-0.258368,0.787099,0.560109,0.000000,-1649638.676111,5025503.548293,3552266.169037,1],    "boundingVolume": {    "region": [1.887886,0.594451,1.888050,0.594582,0.000000,8.674643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1378372.b3dm"}}}