{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898116,-0.439758,0.000000,0.000000,0.281211,-0.574316,0.768818,0.000000,-0.337163,0.688587,0.642004,0.000000,-2153447.018410,4397972.505403,4073000.322238,1],    "boundingVolume": {    "region": [2.026080,0.697081,2.026172,0.697137,0.000000,50.512590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/7_752909.b3dm"}}}