Chapter 22. The Specialized Fortran 77 API for PLplot

Table of Contents
plcon0: Contour plot, identity mapping for Fortran 77
plcon1: Contour plot, general 1-d mapping for Fortran 77
plcon2: Contour plot, general 2-d mapping for Fortran 77
plcont: Contour plot, fixed linear mapping for Fortran 77
plvec0: Vector plot, identity mapping for Fortran 77
plvec1: Vector plot, general 1-d mapping for Fortran 77
plvec2: Vector plot, general 2-d mapping for Fortran 77
plvect: Vector plot, fixed linear mapping for Fortran 77
plmesh: Plot surface mesh for Fortran 77
plot3d: Plot 3-d surface plot for Fortran 77
plparseopts: parse arguments for Fortran 77
plsesc: Set the escape character for text strings for Fortran 77

The purpose of this Chapter is to document the API for each Fortran 77 function in PLplot that differs substantially (usually in argument lists) from the common API that has already been documented in Chapter 19.

Normally, the common API is wrapped in such a way for Fortran 77 that there is and one-to-one correspondence between each Fortran 77 and C argument (see Chapter 10 for discussion). However, for certain routines documented in this chapter the Fortran 77 argument lists necessarily differ substantially from the C versions.

This chapter is incomplete and NEEDS DOCUMENTATION of, e.g., the Fortran 77 equivalent of the plshade C routines.

plcon0: Contour plot, identity mapping for Fortran 77

plcon0 (z, nx, ny, kx, lx, ky, ly, clevel, nlevel);

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.

z (PLFLT **, input)

Pointer to a vectored two-dimensional array containing data to be contoured.

nx, ny (PLINT, input)

Physical dimensions of array z.

kx, lx (PLINT, input)

Range of x indices to consider.

ky, ly (PLINT, input)

Range of y indices to consider.

clevel (PLFLT *, input)

Pointer to array specifying levels at which to draw contours.

nlevel (PLINT, input)

Number of contour levels to draw.

NOTE: this function is intended for use from a Fortran 77 caller only. The C user should instead call plcont using the built-in transformation function pltr0 for the same capability.