{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949622,-0.313399,0.000000,0.000000,0.175178,-0.530801,0.829194,0.000000,-0.259321,0.785762,0.561543,0.000000,-1655732.933294,5016997.705339,3561380.926854,1],    "boundingVolume": {    "region": [1.889517,0.596208,1.889616,0.596290,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443919.b3dm"}}}