nec2(1) [debian man page]
NEC2(1) General Commands Manual NEC2(1) NAME
nec2, nec2small - Numerical Electromagnetics Code (Antenna Modelling Program) SYNOPSIS
nec2 [INPUT] [OUTPUT] nec2small [INPUT] [OUTPUT] DESCRIPTION
nec2, is a versatile numerical Boundary Element Method (commonly called Method of Moments) antenna modelling code for the analysis of antennas and other metal structures. It solves the integral equations for the currents induced on the structure by sources or incident fields. The structure may either be excited by voltage sources on the structure, or by an incident plane wave of either elliptic or linear polarisation. The structure and excitation are described in the INPUT file and the output is written to OUTPUT. OPTIONS
Due to the age of the program, it expects input in the form of punched cards fed into a hopper. It currently does not accept any options. If OUTPUT is omitted, output is written to stdout and if INPUT and OUTPUT are omitted then the input is taken from stdin and the output written to stdout. The maximum size of problem which the code can handle must be hard coded at compile time and no dynamic memory allocation is performed. Two versions are therefore provided suitable for different sizes of problem, nec2 is compiled for a maximum of 10000 wire segments and 5000 surface patches, while nec2small is compiled for a maximum of 600 wire segments and 200 surface patches. SEE ALSO
somnec(1) The NEC-2 code is fully documented in the report Numerical Electromagnetics Code (NEC) -- Method of Moments" by Burke and Poggio, which is available as a printed publication in three parts covering the theory of operation, the program code and the users' manual. An updated form of the users' manual part of this report can be found in /usr/share/doc/nec/NECdoc BUGS
nec2 has been superseded by nec4, but this revised code has not been made available to the public, so it is possible that some bugs remain in this version. Also note that many variant source codes exist based on the original FORTRAN-IV listing in the report. This one is believed to be cor- rectly working, but may still contain extra errors. AUTHOR
This manual page was written by <alanb@chiark.greenend.org.uk>. The program was developed by G. J. Burke and A. J. Poggio of the Laurence Livermore Laboratory. NEC2(1)
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WEBPMUX(1) General Commands Manual WEBPMUX(1) NAME
webpmux - command line tool to create WebP Mux/container file. SYNOPSIS
webpmux -get GET_OPTIONS INPUT -o OUTPUT webpmux -set SET_OPTIONS INPUT -o OUTPUT webpmux -strip STRIP_OPTIONS INPUT -o OUTPUT webpmux -frame FRAME_OPTIONS [ -frame ... ] [ -loop LOOP_COUNT ] [ -bgcolor BACKGROUND_COLOR ] -o OUTPUT webpmux -info INPUT webpmux [-h|-help] webpmux -version DESCRIPTION
This manual page documents the webpmux command. webpmux can be used to create a WebP container file and extract/strip relevant data from the container file. OPTIONS
GET_OPTIONS (-get): icc Get ICC profile. exif Get EXIF metadata. xmp Get XMP metadata. frame n Get nth frame. SET_OPTIONS (-set) icc file.icc Set ICC profile. Where: 'file.icc' contains the ICC profile to be set. exif file.exif Set EXIF metadata. Where: 'file.exif' contains the EXIF metadata to be set. xmp file.xmp Set XMP metadata. Where: 'file.xmp' contains the XMP metadata to be set. STRIP_OPTIONS (-strip) icc Strip ICC profile. exif Strip EXIF metadata. xmp Strip XMP metadata. FRAME_OPTIONS (-frame) file_i +di[+xi+yi[+mi]] Where: 'file_i' is the i'th frame (WebP format), 'xi','yi' specify the image offset for this frame, 'di' is the pause duration before next frame and 'mi' is the dispose method for this frame (0 for NONE or 1 for BACKGROUND). Additionally, if 'mi' is ommitted then'xi' and 'yi' can be omitted and will default to +0+0. -loop n Loop the frames n number of times. 0 indicates the frames should loop forever. Valid range is 0 to 65535 [Default: 0 (infinite)]. -bgcolor A,R,G,B Background color of the canvas. where: 'A', 'R', 'G' and 'B' are integers in the range 0 to 255 specifying the Alpha, Red, Green and Blue component values respec- tively [Default: 255,255,255,255]. INPUT Input file in WebP format. OUTPUT (-o) Output file in WebP format. Note: The nature of EXIF, XMP and ICC data is not checked and is assumed to be valid. BUGS
Please report all bugs to our issue tracker: http://code.google.com/p/webp/issues Patches welcome! See this page to get started: http://www.webmproject.org/code/contribute/submitting-patches/ EXAMPLES
webpmux -set icc image_profile.icc in.webp -o icc_container.webp webpmux -get icc icc_container.webp -o image_profile.icc webpmux -strip icc icc_container.webp -o without_icc.webp webpmux -set xmp image_metadata.xmp in.webp -o xmp_container.webp webpmux -get xmp xmp_container.webp -o image_metadata.xmp webpmux -strip xmp xmp_container.webp -o without_xmp.webp webpmux -set exif image_metadata.exif in.webp -o exif_container.webp webpmux -get exif exif_container.webp -o image_metadata.exif webpmux -strip exif exif_container.webp -o without_exif.webp webpmux -frame anim_1.webp +100 -frame anim_2.webp +100+50+50 -loop 10 -bgcolor 255,255,255,255 -o anim_container.webp webpmux -get frame 2 anim_container.webp -o frame_2.webp AUTHORS
webpmux is written by the WebP team. The latest source tree is available at http://www.webmproject.org/code This manual page was written by Vikas Arora <vikaas.arora@gmail.com>, for the Debian project (and may be used by others). SEE ALSO
dwebp(1), cwebp(1), gif2webp(1). Please refer to http://developers.google.com/speed/webp/ for additional information. March 16, 2013 WEBPMUX(1)