jburkardt

PPMA_IO\ Portable Pixel Map (ASCII) Files\ Read and Write Utilities {#ppma_io-portable-pixel-map-ascii-files-read-and-write-utilities align=”center”} =================================

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PPMA_IO is a C++ library which reads and writes files in the ASCII PPM (Portable Pixel Map) format for 2D color graphics information.

There are many graphics programs, such as XV and GIMP, that can display images in this format, or translate them to other formats such as BMP, GIF, JPEG, MacPaint, X Window, and so on.

Licensing: {#licensing align=”center”}

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

Languages: {#languages align=”center”}

PPMA_IO is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs: {#related-data-and-programs align=”center”}

MANDELBROT, a C++ program which generates an ASCII Portable Pixel Map (PPM) image of the Mandelbrot fractal set;

PBMA_IO, a C++ library which handles the Portable Bit Map format.

PGMA_IO, a C++ library which handles the Portable Gray Map format.

Reference: {#reference align=”center”}

1. the PPMA Data page.
2. the NETPBM homepage.

Source Code: {#source-code align=”center”}

• ppma_io.cpp, the source code;
• ppma_io.hpp, the include file;

Examples and Tests: {#examples-and-tests align=”center”}

• ppma_io_prb.cpp, the sample calling program.
• ppma_io_prb_output.txt, the output file.
• test01.ascii.ppm, the ASCII PPM file from test 1.
• test01.png, a PNG version of the file.
• test02.ascii.ppm, the ASCII PPM file from test 2.
• test02.png, a PNG version of the file.

List of Routines: {#list-of-routines align=”center”}

• PPMA_CHECK_DATA checks the data for an ASCII portable pixel map file.
• PPMA_EXAMPLE sets up some PPM data.
• PPMA_READ reads the header and data from an ASCII portable pixel map file.
• PPMA_READ_DATA reads the data in an ASCII portable pixel map file.
• PPMA_READ_HEADER reads the header of an ASCII portable pixel map file.
• PPMA_READ_TEST tests the ASCII portable pixel map read routines.
• PPMA_WRITE writes the header and data for an ASCII portable pixel map file.
• PPMA_WRITE_DATA writes the data for an ASCII portable pixel map file.
• PPMA_WRITE_HEADER writes the header of an ASCII portable pixel map file.
• PPMA_WRITE_TEST tests the ASCII portable pixel map write routines.

You can go up one level to the C++ source codes.

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Last revised on 27 May 2011.