Fix ggplot frame

Fixes the frame of an surface plot based on the coordinates range of the SPATA2 object in case of ggpLayerFixFrame() or based on specific distance inputs in case of ggpLayerFrame().

ggpLayerFrame(object, xrange, yrange, expand = FALSE)

ggpLayerFixFrame(object)

Value

ggpLayer*()-functions return lists of ggproto objects that can be added to ggplots via the + operator. In most of the cases they are supposed to be added to plots created with the plotSurface*()

family.