Provided by: libncarg-dev_6.4.0-9_amd64 bug

NAME

       LBLBAR - Draws a complete label bar.

SYNOPSIS

        CALL LBLBAR (IHOV, XLEB, XREB, YBEB, YTEB, NBOX, WSFB,
       + HSFB, LFIN, IFTP, LLBS, NLBS, LBAB)

C-BINDING SYNOPSIS

       #include <ncarg/ncargC.h>

       void c_lblbar (int ihov, float xleb, float xreb,
       float ybeb, float yteb, int nbox, float wsfb,
       float hsfb, int *lfin, int iftp, char *llbs[],
       int nlbs, int lbab)

DESCRIPTION

       IHOV        (an input expression of type INTEGER) is zero if the bar is to be oriented
                   horizontally and non-zero if the bar is to be oriented vertically.

       XLEB, XREB, YBEB, YTEB
                   (input expressions of type REAL) specify a rectangular area in the plotter
                   frame in which the entire bar, including labels, is to fit. Each is a real
                   number between 0 and 1, inclusive. XLEB specifies the position of the left
                   edge of the area; XREB, the position of the right edge of the area; YBEB, the
                   position of the bottom edge of the area; and YTEB, the position of the top
                   edge of the area. A horizontal bar should probably be made wider than it is
                   high; similarly, a vertical bar should probably be made higher than it is
                   wide.

       NBOX        (an input expression of type INTEGER) may be positive or negative; its
                   absolute value specifies the number of rectangular pieces (let's call them
                   boxes) into which the bar should be divided.  All the boxes will be the same
                   size. A horizontal bar will be divided into boxes using vertical lines and a
                   vertical bar will be divided into boxes using horizontal lines. The boxes in a
                   horizontal bar are considered to be ordered from left to right and the boxes
                   in a vertical bar from bottom to top.  This ordering determines the order in
                   which fill indices and labels are given. If NBOX is positive, the boxes will
                   be outlined after being drawn; if NBOX is negative, the boxes will not be
                   outlined.

       WSFB, HSFB  (input expressions of type REAL) determine what part of each box is to be
                   color-filled or pattern-filled. Each is a number between 0 and 1; they specify
                   the horizontal and vertical dimensions, respectively, of the filled sub-box,
                   as fractions of the horizontal and vertical dimensions of the whole box.  The
                   exact position of each sub-box within its box will be determined for you,
                   depending on how you choose to have the bar labeled.

       LFIN        (an input array of type INTEGER) contains a list of indices, one for each box
                   in the bar; each index determines how the filling of the associated box is to
                   be done. These may be color indices or some other kind of indices, depending
                   on the value of the next argument, IFTP.

       IFTP        (an input expression of type INTEGER) specifies how the sub-boxes should be
                   filled, as follows:

                   •   If the value of IFTP is zero, LBLBAR fills each sub-box by calling the
                       routine SFSGFA, in the package Softfill. In this case, the value of the
                       Softfill internal parameter `TY' determines whether filling is done by
                       calls to the GKS routine GFA or by drawing closely-spaced colored lines,
                       which simulates solid fill, or by drawing lines which form patterns of
                       different apparent densities.

                   •   If the value of IFTP is non-zero, the routine LBFILL will be called to do
                       the filling. You may supply your own version of the routine LBFILL.

                   Prior to the filling of the boxes, the current polyline color and width will
                   be set as specified by the values of the internal parameters 'CFL' and 'WFL',
                   respectively. Therefore, if lines are used to do the fill and the method
                   chosen does not otherwise set polyline color and width, the values of 'CFL'
                   and 'WFL' will take effect.

                   After filling is complete, the filled sub-boxes may be outlined using the
                   color and line width specified by the Labelbar internal parameters `CBL' and
                   `WBL'. (As mentioned above, this is done only if the argument NBOX is
                   positive; it is suppressed if NBOX is negative.)

       LLBS        (an input array of type CHARACTER) provides a list of labels for the bar; the
                   number of such labels may be equal to:

                   •   the number of boxes less one, in which case the labels are associated with
                       the divisions between the boxes, or to

                   •   the number of boxes, in which case the labels are associated with the
                       boxes themselves, or to

                   •   the number of boxes plus one, in which case the first label is associated
                       with the beginning of the bar, the last label with the end of the bar, and
                       the ones in between with the divisions between the boxes.

                   The labels are drawn by calls to the Plotchar routine PLCHHQ.  They are drawn
                   in the color specified by the Labelbar internal parameter 'CLB' and using the
                   polyline width specified by the Labelbar internal parameter 'WLB'.

       NLBS        (an input expression of type INTEGER) specifies the number of labels in the
                   array LLBS.

       LBAB        (an input expression of type INTEGER) specifies on which side or sides of the
                   bar the labels are to be written. The value 0 specifies that the bar is to be
                   unlabeled, the value 1 that the labels are to be below a horizontal bar or to
                   the right of a vertical bar, the value 2 that the labels are to be above a
                   horizontal bar or to the left of a vertical bar, and the value 3 that the
                   labels are to be repeated on both sides of the bar. The labels will be scaled
                   in such a way as not to overlap one another or to run outside the area in
                   which the label bar is to lie (except perhaps for labels at the ends of the
                   bar).

C-BINDING DESCRIPTION

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

EXAMPLES

       Use the ncarg command to see the following relevant examples: colcon, cpex05, cpex07,
       cpex08, elblba, tconpa, and tlblba.

ACCESS

       To use LBLBAR or c_lblbar, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c,
       preferably in that order.

MESSAGES

       See the labelbar man page for a description of all Labelbar error messages and/or
       informational messages.

SEE ALSO

       Online: labelbar, labelbar_params, lbfill, lbgeti, lbgetr, lbseti, lbsetr, ncarg_cbind

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

COPYRIGHT

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.