The Fortran name of this function is NhlFGetGksCi.
This function returns the low-level GKS color index from an HLU color
index and an instance of a Workstation object.
#include <hfile for Workstation class object>
subroutine NhlFGetGksCi(workid, hlu_ci, indx_gks_ret)
integer workid, hlu_ci, indx_gks_ret
- workid (input)
- Integer identifier of an instance of a
Workstation class object
- hlu_ci (input)
- Integer color index in the range 1 through 255 of a currently
allocated color in the given workid Workstation
- indx_gks_ret (output, Fortran only)
- On output, returns the GKS workstation color index for the given
hlu color index.
This function retrieves the GKS workstation's color index for the
given hlu color index. Given the GKS workstation id, retrieved by
getting the Workstation resource wkGksWorkId
and the GKS workstation color index, you can mix calls to the
low-level NCAR Graphics library and the GKS library with calls to the
Using the NhlGetGksCi function, you can use the low-level
NCAR Graphics library and the GKS library to draw in the same colors that
the HLU library is using.
It is important to note that the HLU library has no way of detecting if
the GKS colormap has been modified by GKS calls, so all colormap changes
should be done through the HLU library to prevent unpredictable results.
The NhlGetGksCi function returns the GKS color index
that is used for the given HLU color index for the given HLU
workstation; the NhlFGetGksCi Fortran subroutine
returns the color index in indx_gks_ret. If the given HLU
color index is not valid, then 1 will be returned; this is the default
Copyright 1987-1999 University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
NCAR Graphics is a registered trademark of the University
Corporation for Atmospheric Research.
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