.TH DPDRAW 3NCARG "March 1995" UNIX "NCAR GRAPHICS" .na .nh .SH NAME DPDRAW - Used to draw a curve when fractional coordinates are available and no smoothing is to be done. .SH SYNOPSIS CALL DPDRAW (XCPF,YCPF,IFVL) .SH C-BINDING SYNOPSIS #include .sp void c_dpdraw (float xcpf, float ycpf, int ifvl); .SH DESCRIPTION .IP XCPF 12 (an input expression of type REAL) specifies the X coordinate of a point in the fractional coordinate system. Ignored when IFVL = 2. .IP YCPF 12 (an input expression of type REAL) specifies the Y coordinate of a point in the fractional coordinate system. Ignored when IFVL = 2. .IP IFVL 12 (an input expression of type INTEGER) indicates what type of call is being done: "0" implies a "first-point" call, "1" implies a "vector" call, and "2" implies a "last-point" or "buffer-flush" call. .SH C-BINDING DESCRIPTION The C-binding argument descriptions are the same as the FORTRAN argument descriptions. .SH USAGE Use "CALL DPDRAW(XCPF,YCPF,0)" to do a "pen-up" move to the first point in a sequence of points defining a curve. .sp Use "CALL DPDRAW(XCPF,YCPF,1)" to do "pen-down" moves to the second and following points in a sequence of points defining a curve. .sp Use "CALL DPDRAW(0.,0.,2) to terminate a sequence of calls, finish drawing the curve, and flush internal buffers. .SH EXAMPLES Use the ncargex command to see the following relevant examples: tdshpk. .SH ACCESS To use DPDRAW or c_dpdraw, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in that order. .SH SEE ALSO Online: dashpack, dashpack_params, dpcurv, dpfrst, dpgetc, dpgeti, dpgetr, dplast, dpline, dpsetc, dpseti, dpsetr, dpsmth, dpvect, ncarg_cbind. .sp Hardcopy: None. .SH COPYRIGHT Copyright (C) 1987-2009 .br University Corporation for Atmospheric Research .br The use of this Software is governed by a License Agreement.