TDGTRS - Get the values defining a selected rendering style, which
affects the appearance of triangles drawn by a call to the routine
TDDTRI.
CALL TDGTRS (IRST, IFC1, IFC2, IFC3, IFC4, ILC1, ILC2, ILTD, USTP,
VSTP, WSTP)
#include <ncarg/ncargC.h>
void c_tdgtrs(int irst, int *ifc1, int *ifc2, int *ifc3, int
*ifc4, int *ilc1, int *ilc2, int *iltd, float *ustp, float *vstp, float
*wstp)
The arguments of TDGTRS are as follows:
- IRST
- (an input expression of type INTEGER) - the index of the particular
rendering style which is to be retrieved.
- IFC1 and IFC2
- (input expressions of type INTEGER) - color indices specifying a range of
colors to be used for the "bottom" side of a surface (where
function values are less than the value on the surface). If IFC1 is
negative, filling of triangles seen from the "bottom" is turned
off. If IFC1 is zero or greater, but IFC2 is less than or equal to it, the
color with index IFC1 is used. If IFC1 is zero or greater and IFC2 is
greater than IFC1, then a range of color indices is specified; colors near
the beginning of that range are used for triangles that are nearly
perpendicular to the line of sight, while colors near the end of that
range are used for triangles more nearly parallel to the line of sight.
(Normally, one should make triangles perpendicular to the line of sight
lighter than those parallel to the line of sight.)
- IFC3 and IFC4
- (input expressions of type INTEGER) - color indices specifying a range of
colors to be used for the "top" side of a surface (where
function values are greater than the value on the surface). If IFC3 is
negative, filling of triangles seen from the "top" is turned
off. If IFC3 is zero or greater, but IFC4 is less than or equal to it, the
color with index IFC3 is used. If IFC3 is zero or greater and IFC4 is
greater than IFC3, then a range of color indices is specified; colors near
the beginning of that range are used for triangles that are nearly
perpendicular to the line of sight, while colors near the end of that
range are used for triangles more nearly parallel to the line of sight.
(Normally, one should make triangles perpendicular to the line of sight
lighter than those parallel to the line of sight.)
- ILC1
- (an input expression of type INTEGER) - the color index specifying a color
to be used for lines drawn on the "bottom" side of a surface. If
ILC1 is negative, the drawing of these lines is turned off.
- ILC2
- (an input expression of type INTEGER) - the color index specifying a color
to be used for lines drawn on the "top" side of a surface. If
ILC2 is negative, the drawing of these lines is turned off.
- ILTD
- (an input expression of type INTEGER) - a flag, which, if set non-zero,
turns on the drawing of the edges of the individual triangles into which
surfaces have been decomposed.
- USTP, VSTP, and
WSTP
- (input expressions of type REAL) - the distances between slices in the U,
V, and W directions, respectively. If a given value is zero, the
associated slice lines are not drawn.
The C-binding argument descriptions are the same as the FORTRAN
argument descriptions.
To use TDGTRS or c_tdgtrs, load the NCAR Graphics libraries ncarg,
ncarg_gks, and ncarg_c, preferably in that order.
Online: tdclrs, tdctri, tddtri, tdgeti, tdgetr, tdgrds, tdgrid,
tdinit, tditri, tdlbla, tdlbls, tdline, tdlnpa, tdmtri, tdotri, tdpack,
tdpack_params, tdpara, tdplch, tdprpa, tdprpi, tdprpt, tdseti, tdsetr,
tdsort, tdstri, tdstrs
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.