{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948647,-0.316335,0.000000,0.000000,0.176497,-0.529290,0.829880,0.000000,-0.261970,0.785612,0.560523,0.000000,-1672637.397480,5016016.425780,3554901.648155,1],    "boundingVolume": {    "region": [1.892612,0.594906,1.892708,0.595129,0.000000,8.619866]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1075520.b3dm"}}}