This class inherits from the SpatialExperiment
(SPE) class,
which in turn inherits from SingleCellExperiment
(SCE).
SpatialFeatureExperiment
stores geometries of spots or cells in
sf
objects which form columns of a DataFrame
which is in turn a
column of the int_colData
DataFrame
of the underlying SCE
object, just like reducedDim
in SCE. Geometries of the tissue outline,
pathologist annotations, and objects (e.g. nuclei segmentation in a Visium
dataset) are stored in sf
objects in a named list called
annotGeometries
in int_metadata
.