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SUBROUTINE PLTLVP (LABEL,LENGTH,TOP,CENTER)
C$ (Label in Viewport)
C$ Draw a plot label in the currently-selected viewport. The
C$ character font used will be that currently selected. The
C$ default character height will be 0.01875 of the maximum
C$ extent of the viewport, but may be decreased if necessary
C$ in order to fit a long label on its line. The arguments
C$ are:
C$
C$ LABEL(*).......Hollerith character string to be drawn. The
C$ special character sequence "$N" or "$n"
C$ (dollar N) in the string represents a
C$ newline, and may be used to request a
C$ multiline label. For example, the string
C$
C$ "title 1$Ntitle 2$ntitle3"
C$
C$ will generate a three line label of the form
C$
C$ title 1
C$ title 2
C$ title 3
C$
C$ With the standard <PLOT79> frame with a one
C$ inch margin on an 8.5 x 11 inch American
C$ page frame, there is space for up to three
C$ label lines in the margin. In the unlikely
C$ event that a $N is actually needed in the
C$ label text, it can be obtained by bracketing
C$ either character with case switch
C$ characters. With the default <PLOT79> case
C$ switch characters, this would be $<N> or
C$ <$>N.
C$ LENGTH.........Number of characters in LABEL(*). Leading
C$ and trailing blanks will be ignored for the
C$ purposes of centering the text.
C$ TOP............ .TRUE. - Label at top.
C$ .FALSE. - Label in bottom.
C$ CENTER......... .TRUE. - Center label.
C$ .FALSE. - Left-adjust label.
C$
C$ (11-AUG-86)