A grid.layout
object is used to
generate the margins. A second viewport selecting the
mid-row/col is used to create the effect of margins
prPushMarginViewport(bottom, left, top, right, name = NULL)
The margin object, either in npc or a unit
object
The margin object, either in npc or a unit
object
The margin object, either in npc or a unit
object
The margin object, either in npc or a unit
object
The name of the last viewport
void