diff options
Diffstat (limited to 'pamshadedrelief.html')
| -rw-r--r-- | pamshadedrelief.html | 108 |
1 files changed, 56 insertions, 52 deletions
diff --git a/pamshadedrelief.html b/pamshadedrelief.html index 179313be..95e701cf 100644 --- a/pamshadedrelief.html +++ b/pamshadedrelief.html @@ -1,27 +1,27 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN"> -<HTML><HEAD><TITLE>Pamshadedrelief User Manual</TITLE></HEAD> -<BODY> -<H1>pamshadedrelief</H1> +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.3//EN"> +<html><head><title>Pamshadedrelief User Manual</title></head> +<body> +<h1>pamshadedrelief</h1> Updated: 26 July 2014 -<BR> -<A HREF="#index">Table Of Contents</A> +<br> +<a href="#index">Table Of Contents</a> -<H2>NAME</H2> +<h2>NAME</h2> pamshadedrelief - generate shaded relief image from an elevation map -<H2 id="synopsis">SYNOPSIS</H2> +<h2 id="synopsis">SYNOPSIS</h2> -<B>pamshadedrelief</B> +<b>pamshadedrelief</b> -[<B>-gamma</B> <I>g</I>] +[<b>-gamma</b> <i>g</i>] -<H2 id="description">DESCRIPTION</H2> +<h2 id="description">DESCRIPTION</h2> <p>This program is part of <a href="index.html">Netpbm</a>. -<P><B>pamshadedrelief</B> creates a shaded relief image from an elevation map. +<p><b>pamshadedrelief</b> creates a shaded relief image from an elevation map. A shaded relief image is a visual image of terrain, showing the terrain as if illuminated by oblique light and viewed from above, so that the brightess of each spot depends upon its slope. A common example of a shaded relief image @@ -43,88 +43,92 @@ landscape. </pre> -<H2 id="options">OPTIONS</H2> +<h2 id="options">OPTIONS</h2> -<P>All options can be abbreviated to their shortest unique prefix. +<p>In addition to the options common to all programs based on libnetpbm +(most notably <b>-quiet</b>, see <a href="index.html#commonoptions"> +Common Options</a>), <b>pamshadedrelief</b> recognizes the following +command line option: -<DL COMPACT> -<DT><B>-gamma</B> <I>factor</I> +<dl compact> +<dt><b>-gamma</b> <i>factor</i> +<dt><b>-g</b> <i>factor</i> -<DD>The specified <I>factor</I> is used to gamma adjust the image in -the same manner as performed by <B>pnmgamma</B>. The default value is +<dd>The specified <i>factor</i> is used to gamma adjust the image in +the same manner as performed by <b>pnmgamma</b>. The default value is 1.0, which results in a medium contrast image. Values larger than 1 lighten the image and reduce contrast, while values less than 1 darken the image, increasing contrast. -<P>Note that this is separate from the gamma correction that is part of the -definition of the PAM GRAYSCALE format. The image <B>pamshadedrelief</B> +<p>Note that this is separate from the gamma correction that is part of the +definition of the PAM GRAYSCALE format. The image <b>pamshadedrelief</b> generates is a genuine, gamma-corrected PAM GRAYSCALE image in any case. This option simply changes the contrast and may compensate for a display device that does not correctly render PAM GRAYSCALE images. -</DL> +</dl> -<H2 id="designnotes">DESIGN NOTES</H2> +<h2 id="designnotes">DESIGN NOTES</h2> -The<B>-gamma</B> option isn't really necessary since you can achieve -the same effect by piping the output from <B>pamshadedrelief</B> through -<B>pnmgamma</B>. However, <B>pamshadedrelief</B> performs an internal gamma +The<b>-gamma</b> option isn't really necessary since you can achieve +the same effect by piping the output from <b>pamshadedrelief</b> through +<b>pnmgamma</b>. However, <b>pamshadedrelief</b> performs an internal gamma map anyway in the process of rendering the elevation array into the PAM GRAYSCALE format, so there's no additional overhead in allowing an additional gamma adjustment. -<H2 id="seealso">SEE ALSO</H2> +<h2 id="seealso">SEE ALSO</h2> -<B><A HREF="ppmrelief.html">ppmrelief</A></B> +<b><a href="ppmrelief.html">ppmrelief</a></b> -<B><A HREF="pnmgamma.html">pnmgamma</A></B>, +<b><a href="pnmgamma.html">pnmgamma</a></b>, -<B><A HREF="pnmsmooth.html">pnmsmooth</A></B> +<b><a href="pnmsmooth.html">pnmsmooth</a></b> -<B><A HREF="pamcrater.html">pamcrater</A></B> +<b><a href="pamcrater.html">pamcrater</a></b> -<B><A HREF="pam.html">pam</A></B>, +<b><a href="pam.html">pam</a></b>, -<H2>AUTHOR</H2> +<h2 id="author">AUTHOR</h2> <p><b>pgmcrater</b>, from which this is derived, was written by John Walker: -<PRE> +<pre> John Walker Autodesk SA Avenue des Champs-Montants 14b CH-2074 MARIN Suisse/Schweiz/Svizzera/Svizra/Switzerland - <B>Usenet:</B><A HREF="mailto:kelvin@Autodesk.com">kelvin@Autodesk.com</A> - <B>Fax:</B>038/33 88 15 - <B>Voice:</B>038/33 76 33 -</PRE> + <b>Usenet:</b><a href="mailto:kelvin@Autodesk.com">kelvin@Autodesk.com</a> + <b>Fax:</b>038/33 88 15 + <b>Voice:</b>038/33 76 33 +</pre> -<P>Permission to use, copy, modify, and distribute this software and +<p>Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, without any conditions or restrictions. This software is provided "as is" without express or implied warranty. -<H2 id="history">HISTORY</H2> +<h2 id="history">HISTORY</h2> <p><b>pgmcrater</b> was split into <b>pamshadedrelief</b> and <b>pamcrater</b> in Netpbm 10.68 (September 2014). See the history section of the <b>pamcrater</b> manual for details. -<HR> -<H2 id="index">Table Of Contents</H2> -<UL> -<LI><A HREF="#synopsis">SYNOPSIS</A> -<LI><A HREF="#description">DESCRIPTION</A> -<LI><A HREF="#options">OPTIONS</A> -<LI><A HREF="#designnotes">DESIGN NOTES</A> -<LI><A HREF="#seealso">SEE ALSO</A> -<LI><A HREF="#author">AUTHOR</A> -<LI><A HREF="#history">HISTORY</A> -</UL> -</BODY> -</HTML> +<hr> +<h2 id="index">Table Of Contents</h2> +<ul> +<li><a href="#synopsis">SYNOPSIS</a> +<li><a href="#description">DESCRIPTION</a> +<li><a href="#options">OPTIONS</a> +<li><a href="#designnotes">DESIGN NOTES</a> +<li><a href="#seealso">SEE ALSO</a> +<li><a href="#author">AUTHOR</a> +<li><a href="#history">HISTORY</a> +</ul> +</body> +</html> |