TDSTRI - Add triangles defining a simple surface to the triangles
in a triangle list.
CALL TDSTRI (U, NU, V, NV, W, LW1D, RTRI, MTRI, NTRI, IRST)
#include <ncarg/ncargC.h>
void c_tdstri(float *u, int nu, float *v, int nv, float *w, int
lw1d, float *rtri, int mtri, int *ntri, int irst)
The arguments of TDSTRI are as follows:
- U
- (an input array, of type REAL, dimensioned NU) - values of an independent
variable "u". It must be the case that U(1) < U(2) < ...
U(NU-1) < U(NU).
- NU
- (an input expression of type INTEGER) - the dimension of U.
- V
- (an input array, of type REAL, dimensioned NV) - values of an independent
variable "v". It must be the case that V(1) < V(2) < ...
V(NV-1) < V(NV).
- NV
- (an input expression of type INTEGER) - the dimension of V.
- W
- (an input array, of type REAL, dimensioned NU x NV and having FORTRAN
first dimension LW1D) - values of a dependent variable "w(u,v)".
The points (((U(I),V(J),W(I,J)),I=1,NU),J=1,NV) define a surface that one
wishes to draw.
- LW1D
- (an input expression of type INTEGER) - the FORTRAN first dimension of the
array W. It must be the case that LW1D is greater than or equal to
NU.
- RTRI
- (an input array, of type REAL, dimensioned 10 x MTRI) - a list of
triangles, probably created by means of calls to TDSTRI, TDITRI, and/or
TDMTRI, and sorted, probably by means of a call to TDOTRI.
- MTRI
- (an input expression of type INTEGER) - the second dimension of RTRI and
thus the maximum number of triangles the triangle list will hold.
- NTRI
- (an input/output variable of type INTEGER) - keeps track of the number of
triangles currently in the list. It is the user's responsibility to zero
this initially and its value is increased by each call to a
triangle-generating routine like TDSTRI. If NTRI becomes equal to MTRI,
TDSTRI does not take an error exit; instead, it just stops generating
triangles. Therefore, it's a good idea, after calling TDSTRI, to check the
value of NTRI against the dimension MTRI; if they're equal, it probably
means that the triangle list filled up and that the rendered surface will
be incomplete.
- IRST
- (an input expression of type INTEGER) - specifies the index of the
rendering style to to be used for the triangles added to the triangle list
by this call.
The C-binding argument descriptions are the same as the FORTRAN
argument descriptions.
To use TDSTRI or c_tdstri, load the NCAR Graphics libraries ncarg,
ncarg_gks, and ncarg_c, preferably in that order.
Online: tdclrs, tdctri, tddtri, tdgeti, tdgetr, tdgrds, tdgrid,
tdgtrs, tdinit, tditri, tdlbla, tdlbls, tdline, tdlnpa, tdmtri, tdotri,
tdpack, tdpack_params, tdpara, tdplch, tdprpa, tdprpi, tdprpt, tdseti,
tdsetr, tdsort, tdstrs
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.