\name{getGeometry} \alias{getGeometry} \alias{getGeometry,AffySNPPDInfoPkgSeed-method} \alias{getGeometry,AffySNPCNVPDInfoPkgSeed-method} \alias{getGeometry,AffyExpressionPDInfoPkgSeed-method} \alias{getGeometry,AffyTilingPDInfoPkgSeed-method} \alias{getGeometry,AffySTPDInfoPkgSeed-method} \alias{getGeometry,NimbleGenPDInfoPkgSeed-method} \title{Return the Chip/Platform geometry} \description{ This generic function returns the geometry for a chip/platform. } \usage{ getGeometry(object) } \arguments{ \item{object}{See \code{showMethods("getGeometry")}, but generally \code{object} will be a subclass of \code{PkgSeed}.} } \details{ The idea is that the input files can be used to determine the geometry for each platform. For example, the method for \code{AffySNPPDInfoPkgSeed} objects reads the header of the CDF file to extract the geometry. } \value{ A list with two elements nrows and ncols } \author{Matt Settles} \keyword{methods}