cancor

Hello,
I'm a beginner to use R. 
When use cancor to analysis two data set X,Y, for
example:
 can<-cancor(X, Y)
 then 5 components are returned, that is cor, xcoef,
ycoef, xcentre, ycentre; 

The explained variance can be calculated by X %*%
can$xcoef or Y %*% can$ycoef, but how to alculate the
canonical maps of field X and Y? 
Thanks!

yana