Extract PolyData from a PolySet

Description

Extracts PolyData from a PolySet. Columns for the PolyData include those other than PID, SID, POS, oldPOS, X, and Y.

Usage

extractPolyData (polys)

Arguments

Details

This function identifies the PolySet's extra columns and determines if those columns contain unique values for each (PID, SID). Where they do, the (PID, SID) will appear in the PolyData output with that unique value. Where they do not, the extra column will contain NAs for that (PID, SID).

Value

PolyData with columns PID, SID, and any extra columns.

See Also

makeProps, PolyData, PolySet.

Examples

#--- create a PolySet with an extra column
polys <- data.frame(PID = c(rep(1, 10), rep(2, 10)),
                    POS = c(1:10, 1:10),
                    X = c(rep(1, 10), rep(1, 10)),
                    Y = c(rep(1, 10), rep(1, 10)),
                    colour = (c(rep("green", 10), rep("red", 10))));
#--- extract the PolyData
print(extractPolyData(polys))