Developing ImgLib2

<!DOCTYPE html> <html> <head> <title>Developing ImgLib2</title> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=3" /> <meta content="ImageJ Wiki" property="og:site_name"> <meta content="Developing ImgLib2" property="og:title"> <meta content="article" property="og:type"> <meta content="The ImageJ wiki is a community-edited knowledge base on topics relating to ImageJ, a public domain program for processing and analyzing scientific images, and its ecosystem of derivatives and variants, including ImageJ2, Fiji, and others." property="og:description"> <meta content="https://imagej.github.io/libs/imglib2/developing" property="og:url"> <meta content="https://imagej.github.io/media/icons/imagej2.png" property="og:image"> <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" 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<div id="toc" class="toc menu dockable"> <div class="drag-handle"></div> <h3>Page contents</h3> <ul data-toc="#content" data-toc-headings="h1,h2,h3,h4,h5,h6"></ul> </div> </section>  <div class="container"> <header class="major special"> <a class="project-icon shadowed-box" href="/libs/imglib2"><span class="tooltip"><img src="/media/icons/imglib2.png"><span class="tooltiptext" style="top: 80%; left: 25%; width: 20em">This page describes content relating to the ImgLib2 multidimensional image processing library. Click the logo for details.</span></span></a> <h1>Developing ImgLib2</h1> <span class="project-counterweight"> </span> </header> </div>   <section id="page" class="main style1"> <div class="container"> <div class="box alt"></div> <div id="content" class="page-content"> <div class="notice" style="font-size: 2; background: #ebf2f8; border-left: 10px solid #67a1fe"><div class="notice-icon"><img src="/media/icons/info.svg" width="32"></div><div class="notice-content"><p>The content of this page has not been vetted since shifting away from MediaWiki. If you’d like to help, check out the <a href="/events/wiki-grand-opening/how-to-help">how to help guide</a>!</p> </div> </div> <h2 id="introduction">Introduction</h2> <p>The <a href="/libs/imglib2">ImgLib2</a> library uses <a href="/develop/maven">Maven</a> to manage project dependencies. One advantage of this approach is nice integration with various development environments (<a href="/develop/ides">IDEs</a>).</p> <p>Because people tend to have differing IDE configurations, we do not put project metadata files (e.g., <code class="language-plaintext highlighter-rouge">.classpath</code>, <code class="language-plaintext highlighter-rouge">.project</code> and <code class="language-plaintext highlighter-rouge">.settings</code> for Eclipse) into the git repository. Instead, the IDE can use Maven’s <code class="language-plaintext highlighter-rouge">pom.xml</code> file directly to manage your dependencies in a better way.</p> <h2 id="getting-the-code">Getting the code</h2> <p>You can clone the ImgLib2 code using Git with the URL: <strong><git://github.com/imglib/imglib2></strong></p> <h2 id="developing-imglib2-with-eclipse">Developing ImgLib2 with Eclipse</h2> <p>To develop ImgLib2 in Eclipse, follow these steps:</p> <ol> <li><a href="/develop/maven-and-eclipse">Install the Maven plugin</a></li> <li>Choose <span class="bc"><span>File</span> › <span>Import</span></span> from the Eclipse menu</li> <li>Select “Existing Maven Projects” and click Next</li> <li>For the Root Directory, specify the path where you cloned ImgLib2</li> <li>From the projects list, leave all items checked</li> <li>Click Finish</li> </ol> <p>For fresh installs, it will initially take some time (a few minutes) for Maven to download all the dependencies for both its own plugins, and for ImgLib2. This is a one-time cost. After that, Maven will check for module updates once a day, which is generally fast.</p> <p>Once you have the ImgLib2 projects within Eclipse, you can reap the benefits of the improved dependency management. For example, if you have the <code class="language-plaintext highlighter-rouge">imglib2</code> and <code class="language-plaintext highlighter-rouge">imglib2-algorithms</code> projects open, the <code class="language-plaintext highlighter-rouge">imglib2-algorithms</code> project will have an Eclipse project build dependency on <code class="language-plaintext highlighter-rouge">imglib2</code>. If you then close the <code class="language-plaintext highlighter-rouge">imglib2</code> project, the dependency within <code class="language-plaintext highlighter-rouge">imglib2-algorithms</code> with automatically become a library dependency to <code class="language-plaintext highlighter-rouge">imglib2-2.0-SNAPSHOT.jar</code>, rather than the project.</p> <h2 id="developing-imglib2-with-idea">Developing ImgLib2 with IDEA</h2> <p>IntelliJ IDEA comes with built-in support for Maven.</p> <p>See <a href="/develop/intellij">Developing ImageJ in IntelliJ IDEA</a>.</p> <h2 id="developing-imglib2-with-netbeans">Developing ImgLib2 with NetBeans</h2> <p>NetBeans comes with built-in support for Maven.</p> <p>See <a href="/develop/netbeans">Developing ImageJ in NetBeans</a>.</p> <h2 id="developing-imglib2-with-command-line-tools">Developing ImgLib2 with command line tools</h2> <p>You can use the mvn command line tool to build ImgLib2. Just type “mvn” with no arguments. By default, Maven will compile the code, run unit tests, create a JAR file and install it in your local Maven repository (typically found in <code class="language-plaintext highlighter-rouge">~/.m2/repository</code>). Maven does its work in a subfolder called <code class="language-plaintext highlighter-rouge">target</code> which is where you’ll find compiled classes and JAR artifacts.</p> <p>For more on using the Maven command line tool, see <a href="http://maven.apache.org/run-maven/index.html">Building a Project with Maven</a> on the Maven website.</p> </div> </div> </section>  <section id="footer"> <ul class="icons"> <li><a href="https://forum.image.sc/tag/imagej" class="icon alt"><img src="/media/icons/image-sc.png" width="24" style="vertical-align: middle; margin-top: -10px"><span class="label">Forum</span></a></li> <li><a href="https://twitter.com/hashtag/ImageJ" class="icon brands alt fa-twitter"><span class="label">Twitter</span></a></li> <li><a href="https://github.com/imagej" class="icon brands alt fa-github"><span class="label">GitHub</span></a></li> </ul> <ul class="copyright"> <li>Design: <a href="http://html5up.net">HTML5 UP</a></li> </ul> </section>  <nav role="navigation"> <div 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