{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948738,-0.316063,0.000000,0.000000,0.176190,-0.528877,0.830208,0.000000,-0.261849,0.786000,0.560035,0.000000,-1671862.141996,5018488.867833,3551796.385648,1],    "boundingVolume": {    "region": [1.892325,0.594316,1.892421,0.594539,0.000000,8.645811]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1212779.b3dm"}}}