Is relation equals missing in relate()?

[kadyb]

I wonder if equals relation is missing in relate() function? To check if two geometries are identical, we currently have to extract them as WKT/WKB and compare them using == or identical()?

relation -- character. One of "intersects", "touches", "crosses", "overlaps", "within", "contains", "covers", "coveredby", "disjoint". Or a "DE-9IM" string such as "FFFF***".

[rhijmans]

You can use compareGeom(x, y)

f <- system.file("ex/lux.shp", package="terra")
v <- vect(f)

compareGeom(v[1:3])
#      [,1]  [,2]  [,3]
#[1,]  TRUE FALSE FALSE
#[2,] FALSE  TRUE FALSE
#[3,] FALSE FALSE  TRUE

compareGeom(v[1:2], v[2:1])
#      [,1]  [,2]
#[1,] FALSE  TRUE
#[2,]  TRUE FALSE

[kadyb]

Ok, I think we should add this information to the relate() doc (#1678).

[rhijmans]

And "equals" was indeed missing, and I have added it now (#1678)

[kadyb]

Great, thank you!