1LINE(3NCARG)                     NCAR GRAPHICS                    LINE(3NCARG)
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NAME

6       LINE - draws a line from the point (X1,Y1) to the point (X2,Y2).  The
7       "pen" (for subsequent calls to FRSTPT, VECTOR, PLOTIF, and PLOTIT) is
8       left at (X2,Y2).
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SYNOPSIS

11       CALL LINE (X1,Y1,X2,Y2)
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C-BINDING SYNOPSIS

14       #include <ncarg/ncargC.h>
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16       void c_line (float x1, float y1, float x2, float y2)
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DESCRIPTION

19       X1          (an input expression of type REAL) defines the X user
20                   coordinate of the starting point of a line segment.
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22       Y1          (an input expression of type REAL) defines the Y user
23                   coordinate of the starting point of a line segment.
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25       X2          (an input expression of type REAL) defines the X user
26                   coordinate of the ending point of a line segment.
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28       Y2          (an input expression of type REAL) defines the Y user
29                   coordinate of the ending point of a line segment.
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C-BINDING DESCRIPTION

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

36       Polyline type, line width, and color can be set by calling the GKS
37       routines GSLN, GSLWSC, GSCR, and GSPLCI before calling LINE.
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39       This routine flushes the SPPS polyline buffer at each line draw.  Thus,
40       polyline attributes can be safely changed between successive calls.
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EXAMPLES

43       Use the ncargex command to see the following relevant examples: mpex07,
44       mpex09, cbex01, coex01, coex03, epltch, srex01, and tgflas.
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ACCESS

47       To use LINE or c_line, load the NCAR Graphics libraries ncarg,
48       ncarg_gks, and ncarg_c, preferably in that order.
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SEE ALSO

51       Online: gpl, gsln, gslwsc, gscr, gsplci, spps, spps_params, frstpt,
52       vector, plotif, curve, ncarg_cbind
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54       Hardcopy: NCAR Graphics Fundamentals, UNIX Version; User's Guide for
55       NCAR GKS-0A Graphics
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58       Copyright (C) 1987-2009
59       University Corporation for Atmospheric Research
60       The use of this Software is governed by a License Agreement.
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64UNIX                              March 1993                      LINE(3NCARG)
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