TTYPLT
Typewriter Graphics Routines

TTYPLT is a FORTRAN77 program which produces simple typewriter graphics plots.

TTYPLT includes the primary routines:

• DOTPLT, produces a 'dot plot' corresponding to (X,Y) pairs.
• GRDPLT, produces a grid corresponding to a given network of points connected by lines.
• GRAFUN, produces a gray scale plot of a quantity Z(X,Y), where Z is defined by a user supplied subroutine.
• GRARAY, similar to GRAFUN, but Z is defined by an input array of values.
• GRAVEC, similar to GRAFUN, but Z is defined by an input vector, requiring less storage than GRARAY. Repeated calls to GRAVEC can produce a two-dimensional plot like that produced by GRAFUN or GRARAY.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

TTYPLT is available in a FORTRAN77 version.

Related Data and Programs:

ANYPLT, a FORTRAN77 library which served as a generic interface between FORTRAN90 programs and various graphics output devices and files.

DISLIN, FORTRAN77 programs which illustrate the use of DISLIN, a scientific graphics package.

GNUFOR, a FORTRAN90 library which provides an interface to the GNUPLOT graphics library.

GNUPLOT_I, a C library which allows an executing C or FORTRAN program to interact with the GNUPLOT graphics program.

Source Code:

• ttyplt.f, the source code.
• ttyplt.sh, commands to compile the source code.

Examples and Tests:

• ttyplt_prb.f, a sample calling program.
• ttyplt_prb.sh, commands to compile and run the sample program.
• ttyplt_prb_output.txt, the output file.

List of Routines:

• DO_BACK fills in the background.
• DO_GRID places grid lines and axis ticks on the graphics line.
• DOTPLT makes an (X,Y) "dot plot" based on lists of X and Y values.
• GETSCL prints out the gray scaled used in contour plots.
• GRAFUN makes a grayscale plot of Z(X,Y), data from subroutine.
• GRARAY makes a grayscale plot of Z(X,Y), data from array.
• GRAVEC makes a grayscale plot of Z(X,Y), data from vector.
• GRDPLT plots a collection of line segments.
• ICROSS determines the X coordinate where a line has a given Y coordinate.
• NTOR maps an integer to a real.
• R4_HUGE returns a "huge" R4.
• R4MAT_MAX returns the maximum entry of an R4MAT.
• R4MAT_MIN returns the minimum entry of an R4MAT.
• RTON maps a real to an integer.
• SETBAK sets the value of the background character.
• SETDEF sets all internal configuration data to default values.
• SETGRA sets the gray scale.
• SETIGR sets the value of IGRID.
• SETLET sets the letters used to mark horizontal, vertical and slanted lines.
• SETMAR resets the left plot margin.
• SETNOD sets the character used to mark data values in dot plots.
• SETREG
• SETWIN
• TIMESTAMP prints out the current YMDHMS date as a timestamp.

You can go up one level to the FORTRAN77 source codes.