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faq.html
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<li class="toctree-l2"><a class="reference internal" href="#what-does-gdal-stand-for">What does GDAL stand for?</a></li>
<li class="toctree-l2"><a class="reference internal" href="#what-is-this-ogr-stuff">What is this OGR stuff?</a></li>
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<section id="faq">
<span id="id1"></span><h1>FAQ<a class="headerlink" href="#faq" title="Link to this heading"></a></h1>
<nav class="contents" id="id2">
<p class="topic-title">目次</p>
<ul class="simple">
<li><p><a class="reference internal" href="#faq" id="id3">FAQ</a></p>
<ul>
<li><p><a class="reference internal" href="#what-does-gdal-stand-for" id="id4">What does GDAL stand for?</a></p></li>
<li><p><a class="reference internal" href="#what-is-this-ogr-stuff" id="id5">What is this OGR stuff?</a></p></li>
<li><p><a class="reference internal" href="#what-does-ogr-stand-for" id="id6">What does OGR stand for?</a></p></li>
<li><p><a class="reference internal" href="#what-does-cpl-stand-for" id="id7">What does CPL stand for?</a></p></li>
<li><p><a class="reference internal" href="#when-was-the-gdal-project-started" id="id8">When was the GDAL project started?</a></p></li>
<li><p><a class="reference internal" href="#is-gdal-ogr-proprietary-software" id="id9">Is GDAL/OGR proprietary software?</a></p></li>
<li><p><a class="reference internal" href="#what-license-does-gdal-ogr-use" id="id10">What license does GDAL/OGR use?</a></p></li>
<li><p><a class="reference internal" href="#what-operating-systems-does-gdal-ogr-run-on" id="id11">What operating systems does GDAL-OGR run on?</a></p></li>
<li><p><a class="reference internal" href="#is-there-a-graphical-user-interface-to-gdal-ogr" id="id12">Is there a graphical user interface to GDAL/OGR?</a></p></li>
<li><p><a class="reference internal" href="#what-compiler-can-i-use-to-build-gdal-ogr" id="id13">What compiler can I use to build GDAL/OGR?</a></p></li>
<li><p><a class="reference internal" href="#i-have-a-question-that-s-not-answered-here-where-can-i-get-more-information" id="id14">I have a question that's not answered here. Where can I get more information?</a></p></li>
<li><p><a class="reference internal" href="#how-do-i-add-support-for-a-new-format" id="id15">How do I add support for a new format?</a></p></li>
<li><p><a class="reference internal" href="#is-gdal-thread-safe" id="id16">Is GDAL thread-safe ?</a></p></li>
<li><p><a class="reference internal" href="#how-do-i-cite-gdal" id="id17">How do I cite GDAL ?</a></p></li>
</ul>
</li>
</ul>
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<section id="what-does-gdal-stand-for">
<h2>What does GDAL stand for?<a class="headerlink" href="#what-does-gdal-stand-for" title="Link to this heading"></a></h2>
<p>GDAL - 空間データ抽象ライブラリ(Geospatial Data Abstraction Library)</p>
<p>It is sometimes pronounced "goo-doll" (a bit like goo-gle), while others pronounce it "gee-doll," and others pronounce it "gee-dall."</p>
<p><a class="reference external" href="https://soundcloud.com/danabauer/how-do-you-pronounce-gdal#t=00:02:58">Listen</a> how Frank Warmerdam prounounces it and the history behind the acronym.</p>
</section>
<section id="what-is-this-ogr-stuff">
<h2>What is this OGR stuff?<a class="headerlink" href="#what-is-this-ogr-stuff" title="Link to this heading"></a></h2>
<p>OGR used to be a separate vector IO library inspired by OpenGIS Simple Features which was separated from GDAL. With the GDAL 2.0 release, the GDAL and OGR components were integrated together.</p>
</section>
<section id="what-does-ogr-stand-for">
<h2>What does OGR stand for?<a class="headerlink" href="#what-does-ogr-stand-for" title="Link to this heading"></a></h2>
<p>OGR used to stand for OpenGIS Simple Features Reference Implementation. However, since OGR is not fully compliant with the OpenGIS Simple Feature specification and is not approved as a reference implementation of the spec the name was changed to OGR Simple Features Library. The only meaning of OGR in this name is historical. OGR is also the prefix used everywhere in the source of the library for class names, filenames, etc.</p>
</section>
<section id="what-does-cpl-stand-for">
<h2>What does CPL stand for?<a class="headerlink" href="#what-does-cpl-stand-for" title="Link to this heading"></a></h2>
<p>Common Portability Library. Think of it as GDAL internal cross-platform standard library. Back in the early days of GDAL development, when cross-platform development as well as compatibility and standard conformance of compilers was a challenge (or PITA), CPL proved necessary for smooth portability of GDAL/OGR.</p>
<p>CPL, or parts of it, is used by some projects external to GDAL (eg. MITAB, libgeotiff).</p>
</section>
<section id="when-was-the-gdal-project-started">
<h2>When was the GDAL project started?<a class="headerlink" href="#when-was-the-gdal-project-started" title="Link to this heading"></a></h2>
<p>In late 1998, Frank Warmerdam started to work as independent professional on the GDAL/OGR library.</p>
</section>
<section id="is-gdal-ogr-proprietary-software">
<h2>Is GDAL/OGR proprietary software?<a class="headerlink" href="#is-gdal-ogr-proprietary-software" title="Link to this heading"></a></h2>
<p>No, GDAL/OGR is a Free and Open Source Software.</p>
</section>
<section id="what-license-does-gdal-ogr-use">
<h2>What license does GDAL/OGR use?<a class="headerlink" href="#what-license-does-gdal-ogr-use" title="Link to this heading"></a></h2>
<p>See <a class="reference internal" href="license.html#license"><span class="std std-ref">License</span></a></p>
</section>
<section id="what-operating-systems-does-gdal-ogr-run-on">
<h2>What operating systems does GDAL-OGR run on?<a class="headerlink" href="#what-operating-systems-does-gdal-ogr-run-on" title="Link to this heading"></a></h2>
<p>You can use GDAL/OGR on all modern flavors of Unix: Linux, FreeBSD, Mac OS X; all supported versions of Microsoft Windows; mobile environments (Android and iOS). Both 32-bit and 64-bit architectures are supported.</p>
</section>
<section id="is-there-a-graphical-user-interface-to-gdal-ogr">
<h2>Is there a graphical user interface to GDAL/OGR?<a class="headerlink" href="#is-there-a-graphical-user-interface-to-gdal-ogr" title="Link to this heading"></a></h2>
<p>See <a class="reference internal" href="software_using_gdal.html#software-using-gdal"><span class="std std-ref">GDALを利用しているソフトウェア</span></a>:</p>
<div class="toctree-wrapper compound">
</div>
</section>
<section id="what-compiler-can-i-use-to-build-gdal-ogr">
<h2>What compiler can I use to build GDAL/OGR?<a class="headerlink" href="#what-compiler-can-i-use-to-build-gdal-ogr" title="Link to this heading"></a></h2>
<p>GDAL/OGR must be compiled with a C++17 capable compiler since GDAL 3.9 (C++11 in previous versions)</p>
<p>Build requirements are described in <a class="reference internal" href="development/dev_environment.html#build-requirements"><span class="std std-ref">Build requirements</span></a>.</p>
</section>
<section id="i-have-a-question-that-s-not-answered-here-where-can-i-get-more-information">
<h2>I have a question that's not answered here. Where can I get more information?<a class="headerlink" href="#i-have-a-question-that-s-not-answered-here-where-can-i-get-more-information" title="Link to this heading"></a></h2>
<p>See <a class="reference internal" href="community/index.html#community"><span class="std std-ref">Community</span></a></p>
<p>Keep in mind, the quality of the answer you get does bear some relation to the quality of the question. If you need more detailed explanation of this, you can find it in essay <a class="reference external" href="http://www.catb.org/~esr/faqs/smart-questions.html">How To Ask Questions The Smart Way</a> by Eric S. Raymond.</p>
</section>
<section id="how-do-i-add-support-for-a-new-format">
<h2>How do I add support for a new format?<a class="headerlink" href="#how-do-i-add-support-for-a-new-format" title="Link to this heading"></a></h2>
<p>To some extent this is now covered by the <a class="reference internal" href="tutorials/raster_driver_tut.html#raster-driver-tut"><span class="std std-ref">Raster driver implementation tutorial</span></a> and <a class="reference internal" href="tutorials/vector_driver_tut.html#vector-driver-tut"><span class="std std-ref">Vector driver implementation tutorial</span></a></p>
</section>
<section id="is-gdal-thread-safe">
<h2>Is GDAL thread-safe ?<a class="headerlink" href="#is-gdal-thread-safe" title="Link to this heading"></a></h2>
<p>See <a class="reference internal" href="user/multithreading.html#multithreading"><span class="std std-ref">Multi-threading</span></a></p>
</section>
<section id="how-do-i-cite-gdal">
<h2>How do I cite GDAL ?<a class="headerlink" href="#how-do-i-cite-gdal" title="Link to this heading"></a></h2>
<p>See <a class="reference external" href="https://github.com/OSGeo/gdal/blob/master/CITATION">CITATION</a></p>
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