{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948814,-0.315835,0.000000,0.000000,0.176070,-0.528939,0.830194,0.000000,-0.261655,0.786050,0.560055,0.000000,-1670629.493765,5018805.570989,3551928.002851,1],    "boundingVolume": {    "region": [1.892085,0.594341,1.892181,0.594564,0.000000,8.773131]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1212857.b3dm"}}}