ncl_dpdraw (3) - Linux Man Pages
ncl_dpdraw: Used to draw a curve when fractional coordinates are available and
DPDRAW - Used to draw a curve when fractional coordinates are available and no smoothing is to be done.
SYNOPSISCALL DPDRAW (XCPF,YCPF,IFVL)
C-BINDING SYNOPSIS#include <ncarg/ncargC.h>
- (an input expression of type REAL) specifies the X coordinate of a point in the fractional coordinate system. Ignored when IFVL = 2.
- (an input expression of type REAL) specifies the Y coordinate of a point in the fractional coordinate system. Ignored when IFVL = 2.
- (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.
C-BINDING DESCRIPTIONThe C-binding argument descriptions are the same as the FORTRAN argument descriptions.
USAGEUse "CALL DPDRAW(XCPF,YCPF,0)" to do a "pen-up" move to the first point in a sequence of points defining a curve.
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.
EXAMPLESUse the ncargex command to see the following relevant examples: tdshpk.
ACCESSTo use DPDRAW or c_dpdraw, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in that order.
COPYRIGHTCopyright (C) 1987-2009
University Corporation for Atmospheric Research
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