Simple Feature Access - Part 1: Common Architecture

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class="gtranslate-modal aria-hidden:invisible"> <div class="modal-dialog m-auto"> <div class="bg-white clip-corners-tl-br px-8 pt-7 pb-12"> <div class="mb-5"> <p class="font-bold">Please select a language:</p> <p class="fs-sm text-gray mt-2">Our website uses machine translation to translate content.</p> </div> <div class="gtranslate_wrapper" id="gt-wrapper-69773930"></div> </div> </div> </div> <div class="site-screen bg-blue-300 opacity-0 transition-opacity duration-500 fixed inset-0 z-20 pointer-events-none" aria-hidden="true"></div> <main id="main-content"> <article id="post-4728" class="post-4728 standards type-standards status-publish has-post-thumbnail hentry tag-simple-feature-access"> <header class="relative block-hero alignfull as-image-left"> <img fetchpriority="high" decoding="async" width="2560" height="1919" src="https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-scaled.jpg" class="w-full h-full" alt="" srcset="https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-scaled.jpg 2560w, https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-300x225.jpg 300w, https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-1024x768.jpg 1024w, https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-768x576.jpg 768w, https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-1536x1151.jpg 1536w, https://www.ogc.org/wp-content/uploads/2023/02/Simple_Features-2048x1535.jpg 2048w" sizes="(max-width: 2560px) 100vw, 2560px" /> <div class="block-inner container is-layout-flow page-hero-offset"> <h1 class="wp-block-heading has-2-xl-font-size"><strong>Simple Feature Access – Part 1: Common Architecture</strong></h1> <p>This part of Simple Features Access (SFA), also called ISO 19125, describes the common architecture for simple feature geometry. The base Geometry class has subclasses for Point, Curve, Surface and GeometryCollection. Each geometric object is associated with a Spatial Reference System, which describes the coordinate space in which the geometric object is defined.</p> </div> </header> <section id="accordion-block_34c7d29bdc2093f5e027ba9f70ae8533" class="block-standards-accordion"> <div class="container"> <div class="is-layout-constrained space-y-[--block-y-spacing]"> <div id="item-1" class="space-y-[--flow-y-spacing]"> <h3 class="font-bold fs-2xl text-blue"> Downloads </h3> <div class="space-y-[--flow-y-spacing]"> <table> <caption>(Hover over Type for full description)</caption> <thead> <tr> <th>Document title</th> <th width="110">Version</th> <th width="180">OGC Doc No.</th> <th width="100">Type</th> </tr> </thead> <tbody> <tr> <td> <a href="https://portal.ogc.org/files/?artifact_id=25355" class="text-blue hover:text-blue-700 transition-colors fs-sm md:fs-md " target="_blank"> OpenGIS Implementation Specification for Geographic information – Simple feature access – Part 1: Common architecture </a> </td> <td class="uppercase fs-sm md:fs-md text-gray">1.2.1</td> <td class="fs-sm md:fs-md text-gray">06-103r4</td> <td><span title="OpenGIS Implementation Specification" class="text-gray cursor-pointer fs-sm md:fs-md">IS</span></td> </tr> <tr> <td> <a href="https://portal.ogc.org/files/?artifact_id=18241" class="text-blue hover:text-blue-700 transition-colors fs-sm md:fs-md line-through" target="_blank"> OpenGIS Implementation Specification for Geographic information – Simple feature access – Part 1: Common architecture </a> </td> <td class="uppercase fs-sm md:fs-md text-gray">1.2.0</td> <td class="fs-sm md:fs-md text-gray">06-103r3</td> <td><span title="Deprecated Implementation Specification" class="text-gray cursor-pointer fs-sm md:fs-md">D-IS</span></td> </tr> <tr> <td> <a href="https://portal.ogc.org/files/?artifact_id=13227" class="text-blue hover:text-blue-700 transition-colors fs-sm md:fs-md line-through" target="_blank"> OpenGIS Implementation Specification for Geographic information – Simple feature access – Part 1: Common architectu </a> </td> <td class="uppercase fs-sm md:fs-md text-gray">1.1.0</td> <td class="fs-sm md:fs-md text-gray">05-126</td> <td><span title="Deprecated Implementation Specification" class="text-gray cursor-pointer fs-sm md:fs-md">D-IS</span></td> </tr> </tbody> </table> </div> </div> <div id="item-2" class="space-y-[--flow-y-spacing]"> <h3 class="font-bold fs-2xl text-blue"> Official model files and encoding schemas </h3> <div class="space-y-[--flow-y-spacing]"> <p><a href="https://portal.ogc.org/public_ogc/change_request.php" target="_blank">Submit a Change Request, Requirement, or Comment for this OGC standard.</a></p> </div> </div> <div id="item-3" class="space-y-[--flow-y-spacing]"> <h3 class="font-bold fs-2xl text-blue"> Related links </h3> <div class="space-y-[--flow-y-spacing]"> <p>No Results Found.</p> <p><a href="https://www.ogc.org/pressroom/">Go To OGC Press Page</a></p> </div> </div> </div> </div> </section> <section class="wp-block-group pattern-single-column has-global-padding is-layout-constrained wp-block-group-is-layout-constrained"> <div class="wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex"> <div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow"> <h2 class="wp-block-heading has-blue-color has-text-color has-link-color has-2-xl-font-size wp-elements-c81bb6ca8df4a9fb76581a9b45c4fe6b"><strong>Overview</strong></h2> <p>Currently, the ISO 19125: Simple Features SWG is working to update the OGC Simple Features standards. The purpose of the ISO 19125 SWG is to update the common standard that is both the OGC Simple Features Implementation Standard and the ISO 19125 Standards (Part 1: Common Architecture, and Part 2 SQL Option) to:</p> <ul class="wp-block-list"> <li>Maintain and correct the current standard, </li> <li>Synchronize with SQL/MM: Part 3 Spatial,</li> <li>Introduce new geometry types,</li> <li>Support 3D coordinates, and Linear reference systems including segmented attributes.</li> </ul> <p>Additional documentation that the SWG has produced are:</p> <p><a href="https://portal.ogc.org/files/?artifact_id=92693">OGC 19-029r7 Features and Geometry Part 2 Measure</a></p> <p><a href="https://portal.ogc.org/files/?artifact_id=80428">OGC 17-087r13 Features and Geometries Part 1 Feature Models</a> </p> </div> </div> </section> </article> </main> <footer class="site-footer text-white bg-blue-300 py-12 md:py-[--container-padding]"> <div class="container"> <div class="grid gap-8 grid-cols-2 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