<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>GRASS Tutorial for nviz</title> <link rel="stylesheet" href="grassdocs.css" type="text/css"> </head> <body bgcolor="#FFFFFF" link="#0000DF" vlink="#006000"> <img src="grass_logo.png"><hr align=center size=6 noshade> <h1>NVIZ Reference Manual</h1> <hr width="100%" align=center size=4 noshade> <p> <a href="nviz_toc.html">CONTENTS</a> </p> <h2>Image Dump</h2> <p>Image Dump saves the contents of the current <strong>NVIZ</strong> viewer to an image file. Make sure the <strong>NVIZ</strong> viewer is on top of all other windows in the current workspace. If any windows cover the <strong>NVIZ</strong> viewer, they appear as part of the saved image. With the exception of the <strong>Max. Resolution PPM</strong>, the image has the same dimensions as the <strong>NVIZ</strong> viewer. </p> <BR><BR> <DL><DD> <img src="nvimg/panel/image_dump.gif" alt="Image Dump" width="302" height="323"> </DD></DL> <BR><BR> <dl> <dt><strong>IRIS RGB Image</strong></dt> <dd>Saves the scene to an Iris RGB image file. <br><br></dd> <dt><strong>PPM Image</strong></dt> <dd>Saves the scene to a PPM image file. You can convert a PPM image to a PNG image with the widely installed NetPBM tools.<BR> e.g.: <DL><dd><tt>pnmtopng image.ppm > image.png</tt></dd></DL> <BR> </dd> <dt><strong>TIFF Image</strong></dt> <dd>Saves the scene to a TIFF image file. <br><br></dd> <dt><strong>Save Max. Resolution PPM(s)</strong></dt> <dd>Saves the scene to the highest resolution (size) supported by the users graphics setup. The oversized image renders as a series of tiles that are automatically assembled by the program <em><strong>pnmcat</strong> </em>. If <em><strong>pnmcat</strong></em> is not available, you need to manually assemble the tiles with another graphics program. The aspect ratio of the oversized image matches the aspect ratio of the original <strong>NVIZ</strong> viewer. <br><br></dd> </dl> </body> </html>
