{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949445,-0.313932,0.000000,0.000000,0.175505,-0.530791,0.829131,0.000000,-0.259743,0.785556,0.561636,0.000000,-1658425.562873,5015684.657269,3561973.505065,1],    "boundingVolume": {    "region": [1.890079,0.596321,1.890177,0.596403,0.000000,13.684404]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1409210.b3dm"}}}