The purpose of this Chapter is to document the API for each Fortran function in PLplot that differs substantially (usually in argument lists) from the common API that has already been documented in Chapter 15.
Normally, the common API is wrapped in such a way for Fortran that there is and one-to-one correspondence between each fortran and C argument (see Chapter 7 for discussion). However, for certain routines documented in this chapter the fortran argument lists necessarily differ substantially from the C versions.
This chapter is incomplete and NEEDS DOCUMENTATION of, e.g., the fortran equivalent of the plshade C routines.
Draws a contour plot of the data in z[nx][ny], using the nlevel contour levels specified by clevel. Only the region of the array from kx to lx and from ky to ly is plotted out. See the Section called Contour and Shade Plots in Chapter 3 for more information.
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NOTE: this function is intended for use from a Fortran caller only. The C user should instead call plcont using the built-in transformation function pltr0 for the same capability.