{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942109,-0.335308,0.000000,0.000000,0.187717,-0.527424,0.828605,0.000000,-0.277251,0.778987,0.562416,0.000000,-1770219.195301,4973752.398747,3566930.904392,1],    "boundingVolume": {    "region": [1.912666,0.597274,1.912791,0.597336,0.000000,8.588381]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1288544.b3dm"}}}