Combine giottoPolygon geometries

Combine multiple giottoPolygon geometries into a set of multipolygons. Note that attributes cannot be kept

Usage

combineToMultiPolygon(x, groups, name = NULL)

Arguments

x

giottoPolygon

groups

data.frame with columns 'poly_ID' and 'group_ID' that relates which polygons should now be combined under which group_ID

name

(optional) name for the giottoPolygon object

Value

giottoPolygon

Examples

gpoly <- GiottoData::loadSubObjectMini("giottoPolygon")
groups <- data.table::data.table(
    poly_ID = gpoly$poly_ID,
    group_ID = sort(rep(LETTERS[seq_len(5)], length.out = nrow(gpoly)))
    # make 5 groups
)

multi_gp <- combineToMultiPolygon(gpoly, groups)

plot(multi_gp["A"])