{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896473,-0.443098,0.000000,0.000000,0.283031,-0.572627,0.769410,0.000000,-0.339987,0.687861,0.641293,0.000000,-2171475.905679,4393320.556320,4068476.733577,1],    "boundingVolume": {    "region": [2.029756,0.696126,2.029939,0.696238,0.000000,54.891054]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/6_513841.b3dm"}}}