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<span>Architecture</span> </div> </a> <button aria-controls="toc-Architecture-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Architecture subsection</span> </button> <ul id="toc-Architecture-sublist" class="vector-toc-list"> <li id="toc-Supported_Platforms_and_Operating_Systems" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Supported_Platforms_and_Operating_Systems"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Supported Platforms and Operating Systems</span> </div> </a> <ul id="toc-Supported_Platforms_and_Operating_Systems-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Functionality" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Functionality"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Functionality</span> </div> </a> <button aria-controls="toc-Functionality-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Functionality subsection</span> </button> <ul id="toc-Functionality-sublist" class="vector-toc-list"> <li id="toc-ACIS_Modeler" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#ACIS_Modeler"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>ACIS Modeler</span> </div> </a> <ul id="toc-ACIS_Modeler-sublist" class="vector-toc-list"> <li id="toc-3D_Modelling" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#3D_Modelling"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1.1</span> <span>3D Modelling</span> </div> </a> <ul id="toc-3D_Modelling-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-3D_Model_Management" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#3D_Model_Management"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1.2</span> <span>3D Model Management</span> </div> </a> <ul id="toc-3D_Model_Management-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-3D_Model_Visualization" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#3D_Model_Visualization"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1.3</span> <span>3D Model Visualization</span> </div> </a> <ul id="toc-3D_Model_Visualization-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-ACIS_Modeler_Extensions" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#ACIS_Modeler_Extensions"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>ACIS Modeler Extensions</span> </div> </a> <ul id="toc-ACIS_Modeler_Extensions-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-File_format" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#File_format"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>File format</span> </div> </a> <button aria-controls="toc-File_format-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle File format subsection</span> </button> <ul id="toc-File_format-sublist" class="vector-toc-list"> <li id="toc-Save_File_Types" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Save_File_Types"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Save File Types</span> </div> </a> <ul id="toc-Save_File_Types-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Structure_of_the_Save_File" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Structure_of_the_Save_File"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Structure of the Save File</span> </div> </a> <ul id="toc-Structure_of_the_Save_File-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Version_Numbers_and_ACIS_Releases" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Version_Numbers_and_ACIS_Releases"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Version Numbers and ACIS Releases</span> </div> </a> <ul id="toc-Version_Numbers_and_ACIS_Releases-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Adoption" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Adoption"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Adoption</span> </div> </a> <ul id="toc-Adoption-sublist" 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.mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">3D ACIS Modeler</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:SchemeAIDE_ACIS.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/SchemeAIDE_ACIS.png/220px-SchemeAIDE_ACIS.png" decoding="async" width="220" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/SchemeAIDE_ACIS.png/330px-SchemeAIDE_ACIS.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/SchemeAIDE_ACIS.png/440px-SchemeAIDE_ACIS.png 2x" data-file-width="688" data-file-height="251" /></a></span><div class="infobox-caption">screenshot</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="/wiki/Spatial_Corp" title="Spatial Corp">Spatial Corporation</a></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">Version 2019 1.0.2 <sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> / 2018-09-21</div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Windows_7" title="Windows 7">Windows 7</a> (and <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">above</a>), <a href="/wiki/MacOS" title="MacOS">macOS</a> and <a href="/wiki/Linux" title="Linux">Linux</a> (<a href="/wiki/Red_Hat" title="Red Hat">Red Hat</a>)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/3D_modeler" class="mw-redirect" title="3D modeler">3D modeler</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary software</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><a rel="nofollow" class="external text" href="http://www.spatial.com">www.spatial.com</a></td></tr></tbody></table> <p>The <b>3D ACIS Modeler</b> (<b>ACIS</b>) is a <a href="/wiki/Geometric_modeling_kernel" title="Geometric modeling kernel">geometric modeling kernel</a> developed by <a href="/wiki/Spatial_Corp" title="Spatial Corp">Spatial Corporation</a> (formerly Spatial Technology), part of <a href="/wiki/Dassault_Syst%C3%A8mes" title="Dassault Systèmes">Dassault Systèmes</a>. ACIS is used by software developers in industries such as <a href="/wiki/Computer-aided_design" title="Computer-aided design">computer-aided design</a>, <a href="/wiki/Computer-aided_manufacturing" title="Computer-aided manufacturing">computer-aided manufacturing</a>, <a href="/wiki/Computer-aided_engineering" title="Computer-aided engineering">computer-aided engineering</a>, architecture, engineering and construction, <a href="/wiki/Coordinate-measuring_machine" title="Coordinate-measuring machine">coordinate-measuring machine</a>, <a href="/wiki/3D_animation" class="mw-redirect" title="3D animation">3D animation</a>, and shipbuilding. ACIS provides software developers and manufacturers the underlying 3D modeling functionality. </p><p>ACIS features an <a href="/wiki/Object-oriented" class="mw-redirect" title="Object-oriented">object-oriented</a> C++ architecture with 3D modelling capabilities. ACIS is used to construct applications with hybrid modeling features, since it integrates <a href="/wiki/Wireframe_model" class="mw-redirect" title="Wireframe model">wireframe model</a>, <a href="/wiki/Surface_(topology)" title="Surface (topology)">surface</a>, and <a href="/wiki/Solid_modeling" title="Solid modeling">solid modeling</a> functionality with both <a href="/wiki/List_of_manifolds" title="List of manifolds">manifold and non-manifold topology</a>, and a set of geometric operations. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As a geometric kernel, ACIS is a second generation system, coming after the first generation <a href="/wiki/Romulus_(b-rep_solid_modeler)" class="mw-redirect" title="Romulus (b-rep solid modeler)">Romulus</a>.<sup id="cite_ref-cadazz_3-0" class="reference"><a href="#cite_note-cadazz-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>There are several versions about what the word ACIS actually stands for, or whether it is an <a href="/wiki/Acronym" title="Acronym">acronym</a> at all. The most popular version is that ACIS stands for <i>Alan, Charles, Ian's System</i> (Alan Grayer, Charles Lang and Ian Braid as part of Three-Space Ltd.), or <i>Alan, Charles, Ian and Spatial</i> (as the system was later on sold to Spatial Technology, now <a href="/wiki/Spatial_Corp" title="Spatial Corp">Spatial Corp</a>). According to a close source the name actually stands for <i>Alan, Charles, Ian, Sowar</i>, with Sowar coming from Dick Sowar, founder of Spatial Technology. However, when asked, the creators of ACIS would simply suggest that its name was derived from <a href="/wiki/Greek_mythology" title="Greek mythology">Greek mythology</a> (See also <a href="/wiki/Acis" class="mw-redirect" title="Acis">Acis</a>).<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (March 2012)">citation needed</span></a></i>]</sup> </p><p>In 1985 Alan Grayer, Charles Lang and Ian Braid (creators of <a href="/wiki/Romulus_(b-rep_solid_modeler)" class="mw-redirect" title="Romulus (b-rep solid modeler)">Romulus</a> and Romulus-D) formed Three-Space Ltd. (<a href="/wiki/Cambridge" title="Cambridge">Cambridge</a>, <a href="/wiki/England" title="England">England</a>) which had been retained by Dick Sowar's Spatial Technology (which had been founded by Sowar in 1986) to develop the ACIS solid modeling kernel for Spatial Technology's Strata CAM software. The first version of ACIS was released in 1989 and was licensed by <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">HP</a> for integration into its ME CAD software. </p><p>In late 2000, around the time when Spatial was acquired by <a href="/wiki/Dassault_Syst%C3%A8mes" title="Dassault Systèmes">Dassault Systèmes</a>, the ACIS file format changed slightly and was no longer openly published. </p> <div class="mw-heading mw-heading2"><h2 id="Architecture">Architecture</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=2" title="Edit section: Architecture"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A <a href="/wiki/Software_component" title="Software component">software component</a> is a functionally specialized unit of software—a collection of software items (functions, classes, etc.) grouped together to serve some distinct purpose. It serves as a constituent part of a whole software system or product. A product is one or more software components that are assembled together and sold as a package. Components can be arranged in different combinations to form different products. </p><p>The ACIS product line is designed using software component technology, which allows an application to use only the components it requires. In some cases, more than one component is available (either from Spatial or third party vendors) for a given purpose, so application developers can use the component that best meets their needs. For example, several rendering components are available from Spatial, and developers use the one that works best for their platform or application. </p> <div class="mw-heading mw-heading3"><h3 id="Supported_Platforms_and_Operating_Systems">Supported Platforms and Operating Systems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=3" title="Edit section: Supported Platforms and Operating Systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th>Platform </th> <th>Operating System </th> <th>Compiler </th> <th>32-bit </th> <th>64-bit </th></tr> <tr> <td>Microsoft </td> <td>Windows 7 </td> <td>Visual C++ 2010, Visual C++ 2013, Visual C++ 2013, Visual C++ 2015 </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> <tr> <td>Microsoft </td> <td>Windows 8, Windows 8.1, Windows 10 </td> <td>Visual C++ 2010, Visual C++ 2013, Visual C++ 2013, Visual C++ 2015, VC++ 2017 </td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> <tr> <td>Red Hat </td> <td>Enterprise Linux, Version 5.0, Enterprise Linux, Version 6.0, Enterprise Linux, Version 7.0 </td> <td>GNU C++ gcc 4.1.2 </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> <tr> <td>Apple </td> <td>OS X 10.7.5, OS X 10.10 </td> <td>Clang version 4.1 compiler 64-bit </td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Functionality">Functionality</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=4" title="Edit section: Functionality"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="ACIS_Modeler">ACIS Modeler</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=5" title="Edit section: ACIS Modeler"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ACIS core functionality<sup id="cite_ref-acis_functionality_4-0" class="reference"><a href="#cite_note-acis_functionality-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> can be subclassified into three categories, namely: </p> <div class="mw-heading mw-heading4"><h4 id="3D_Modelling">3D Modelling</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=6" title="Edit section: 3D Modelling"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Extrude/revolve/sweep sets of 2D curves into complex surfaces or solids.</li> <li>Fillet and chamfer between faces and along edges in surface and solid models.</li> <li>Fit surfaces to a closed network of curves.</li> <li>Generate patterns of repetitive shapes.</li> <li>Hollow solids and thicken surfaces.</li> <li>Interactively bend, twist, stretch, and warp combinations of curves, surfaces, and solids.</li> <li>Intersect/subtract/unite any combination of curves, surfaces, and solids.</li> <li>Loft surfaces to fit a set of profile curves.</li> <li>Taper/offset/move surfaces in a model.</li></ul> <div class="mw-heading mw-heading4"><h4 id="3D_Model_Management">3D Model Management</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=7" title="Edit section: 3D Model Management"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Attach user-defined data to any level of a model.</li> <li>Track geometry and topology changes.</li> <li>Calculate mass and volume.</li> <li>Model sub-regions of a solid using cellular topology.</li> <li>Unlimited undo/redo with independent history streams.</li></ul> <div class="mw-heading mw-heading4"><h4 id="3D_Model_Visualization">3D Model Visualization</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=8" title="Edit section: 3D Model Visualization"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Tessellate surface geometry into polygonal mesh representation.</li> <li>Create advanced surfacing capabilities with the optional Deformable Modeling component.</li> <li>Generate precise 2D projections with hidden line removal using optional PHL V5 component.</li> <li>Develop graphical applications</li></ul> <div class="mw-heading mw-heading3"><h3 id="ACIS_Modeler_Extensions">ACIS Modeler Extensions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=9" title="Edit section: ACIS Modeler Extensions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>CGM Polyhedra</dt> <dd>CGM Polyhedra is an add-on to the 3D ACIS Modeler combining polyhedral and B-rep modeling. Utilizing the same interfaces that 3D ACIS Modeler users are already familiar with, existing and new customers can integrate approximated polyhedral data to their 3D printing, subtractive manufacturing, analysis, and other workflows.</dd></dl> <dl><dt>3D Deformable Modeling</dt> <dd>3D Deformable Modeling is an interactive sculpting tool for shaping 3D models. Included as part of Spatial's suite of 3D modeling development technologies, 3D Deformable Modeling uses local and global editing features that allow for the creation and manipulation of free-form <a href="/wiki/B-spline" title="B-spline">B-spline</a> and <a href="/wiki/NURBS" class="mw-redirect" title="NURBS">NURBS</a> curves and surfaces.</dd></dl> <dl><dt>Advanced Covering</dt> <dd>Advanced Covering is a feature of Deformable Modeling that is now available as a standalone add-on for the 3D ACIS Modeler. This single API uses algorithms to create n-sided surfaces that meet user-specified tolerances for position and continuity on boundaries and on optional internal guiding geometry. Advanced Covering allows a surface to be fit onto circuits (collections of edges that form closed loops) in solid or wire bodies, which is useful in consumer product design. Among other uses, Advanced Covering can be used for end-capping, post-translation corrections, and surface definition from curve data.</dd></dl> <dl><dt>Defeaturing</dt> <dd>Defeaturing automatically identifies and removes small features that computer aided engineering analysts typically want to eliminate from the 3D model prior to meshing. Analysts frequently work from the same models that are used for design and manufacture, but these models often carry much more detail than is necessary for <a href="/wiki/Simulation" title="Simulation">simulation</a> or analysis purposes. By removing unnecessary detail, defeaturing simplifies the model, a process that typically is done manually at significant cost.</dd></dl> <dl><dt>CGM HLR</dt> <dd>CGM HLR is a hidden line removal (HLR) technology from Spatial based on <a href="/wiki/CATIA" title="CATIA">CATIA</a> V6 technology. CGM HLR is an ACIS-dependent development technology - an ACIS license is required. Though 3D is now the de facto CAD standard in most engineering disciplines, 2D still has a place in industries such as technical illustration, <a href="/wiki/Manufacturing" title="Manufacturing">manufacturing</a>, and <a href="/wiki/Architecture" title="Architecture">architecture</a>. Since 3D models are the typical primary output for CAD design, users in these industries require an efficient and accurate method of generating 2D computational drawings directly from the 3D models. Hidden line removal (HLR) is an important aspect of creating an accurate 2D representation from a 3D model. Using HLR, the converted model only displays those parts visible from a given perspective; hidden (or occluded) edges normally included in a 3D model representation are removed, or drawn in a line style that indicates their obscured position.</dd></dl> <div class="mw-heading mw-heading2"><h2 id="File_format">File format</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=10" title="Edit section: File format"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Save_File_Types">Save File Types</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=11" title="Edit section: Save File Types"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ACIS supports two kinds of save files, Standard ACIS Text (SAT), and Standard ACIS Binary (SAB). The two formats store identical information, so the term SAT file is generally used to refer to either when no distinction is needed. </p><p>SAT files are ASCII text files that may be viewed with a simple text editor. A SAT file contains carriage returns, white space and other formatting that makes it readable to the human eye. A SAT file has a .sat file extension. </p><p>SAB files cannot be viewed with a simple text editor and are meant for compactness and not for human readability. A SAB file has a .sab file extension. A SAB file uses delimiters between elements and binary tags, without additional formatting. </p> <div class="mw-heading mw-heading3"><h3 id="Structure_of_the_Save_File">Structure of the Save File</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=12" title="Edit section: Structure of the Save File"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Specification of SAT format for version 7.0 (circa 2001) has been made publicly available. This allowed external applications, even those not based on ACIS, accessing the data stored in such files. The basic information needed to understand the SAT file format, such as the structure of the save file format, how the data is encapsulated, the types of data written, subtypes and references, is available from this document. However the newer version of ACIS use modified format of SAT files whose specification is not publicly available. Thus reading of modern SAT files requires either using native ACIS library or reverse engineering of the format. </p><p>A save file contains: </p> <ul><li>a three-line header</li> <li>entity records, representing the bulk of the data</li> <li>optionally, a begin history data marker</li> <li>optionally, old entity records needed for history and rollback</li> <li>optionally, an end history data marker</li> <li>an end marker</li></ul> <p>Beginning with ACIS Release 6.3, it is required that the product ID and units be populated for the file header before you can save a SAT file. </p> <div class="mw-heading mw-heading2"><h2 id="Version_Numbers_and_ACIS_Releases">Version Numbers and ACIS Releases</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=13" title="Edit section: Version Numbers and ACIS Releases"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ACIS is currently being developed by Spatial. They maintain the concept of a current version (release) number in ACIS, as well as a save version number. The save version allows one to create a SAT save file that can be read by a previous version of ACIS. </p><p>Beginning with ACIS Release 4.0, the SAT save file format did not change with minor releases, only with major releases. This allowed applications that are based upon the same major version of ACIS to exchange data without being concerned about the save version. To provide this interoperability in a simple implementation, ACIS save files have contained a symbol that accurately identified the major version number, but not the minor version. This meant that applications created using the same major version of ACIS would produce compatible save files, regardless of their minor versions. This was accomplished by simply not incrementing the internal minor version number between major versions. </p><p>Beginning with Release 7.0, ACIS started again providing accurate major, minor, and point version numbers. Beginning with Release 2016 1.0 in September, 2015, Spatial updated to Semantic Versioning, and now describes versions by the model year and major, minor and point releases within that model year. </p><p>To summarize how release numbers and SAT changes are related: </p> <ul><li><b>Major release</b>: SAT file changes may be made; significant functionality changes likely; may require significant changes to existing applications</li> <li><b>Minor release</b>: No SAT file changes are made; may provide new functionality; may require some minimal changes to existing applications</li> <li><b>Point release</b>: Minor changes only (bug fixes). (Also known as service packs).</li></ul> <table class="wikitable"> <tbody><tr> <th>Release </th> <th>Date </th></tr> <tr> <td>2020 1.0 </td> <td>2019.Nov.12 </td></tr> <tr> <td>2019 1.0 </td> <td>2018.Nov.13 </td></tr> <tr> <td>2018 1.0 </td> <td>2017.July.26 </td></tr> <tr> <td>2017 1.0 </td> <td>July 2016 </td></tr> <tr> <td>2016 1.0 </td> <td>September 2015 </td></tr> <tr> <td>R25 </td> <td>July 2014 </td></tr> <tr> <td>R24 </td> <td>June 2013 </td></tr> <tr> <td>R23 </td> <td>August 2012 </td></tr> <tr> <td>R22 </td> <td>July 2011 </td></tr> <tr> <td>R21 </td> <td>May 2010 </td></tr> <tr> <td>R20 </td> <td>May 2009 </td></tr> <tr> <td>R19 </td> <td>July 2008 </td></tr> <tr> <td>R18 </td> <td>November 2007 </td></tr> <tr> <td>R17 </td> <td>April 2007 </td></tr> <tr> <td>R16 </td> <td>January 2006 </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Adoption">Adoption</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=14" title="Edit section: Adoption"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 2023 <a href="/wiki/Alibre_Design" title="Alibre Design">Alibre Design</a>, <a href="/wiki/BricsCAD" title="BricsCAD">BricsCAD</a>, <a href="/wiki/SpaceClaim" title="SpaceClaim">SpaceClaim</a>,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> <a href="/wiki/TurboCAD" title="TurboCAD">TurboCAD</a>, <a href="/wiki/Cimatron" title="Cimatron">Cimatron</a>, <a href="/wiki/PunchCAD" class="mw-redirect" title="PunchCAD">Viacad</a>, <a href="/wiki/Encore,_Inc." title="Encore, Inc.">SharkCad</a> and Vertex all used ACIS as their geometric kernel/engine. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=15" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Comparison_of_CAD_editors_for_AEC" class="mw-redirect" title="Comparison of CAD editors for AEC">Comparison of CAD editors for Architecture, Engineering and Construction</a></li> <li><a href="/wiki/ShapeManager" title="ShapeManager">ShapeManager</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=16" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.spatial.com/news/spatial-releases-2017-10-delivering-technology-enhancements-aimed-innovation-and">"Spatial Releases 2017 1.0, Delivering Technology Enhancements Aimed at Innovation and Industrialization"</a>. Dassault Systèmes, Spatial Corp. Retrieved 9 August 2016.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.spatial.com/news/spatial-releases-2018-101-enhance-3d-modeling-and-interoperability-workflows">"Spatial | 3D Modeling Solutions and Data Interoperability Tools"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Spatial+%26%23124%3B+3D+Modeling+Solutions+and+Data+Interoperability+Tools&rft_id=https%3A%2F%2Fwww.spatial.com%2Fnews%2Fspatial-releases-2018-101-enhance-3d-modeling-and-interoperability-workflows&rfr_id=info%3Asid%2Fen.wikipedia.org%3AACIS" class="Z3988"></span></span> </li> <li id="cite_note-cadazz-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-cadazz_3-0">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.cadazz.com/">"CAD software history CAD CAM computer aided design 1980 to 1985"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070203084236/http://www.cadazz.com/">Archived</a> from the original on 3 February 2007<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-03-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=CAD+software+history+CAD+CAM+computer+aided+design+1980+to+1985&rft_id=http%3A%2F%2Fwww.cadazz.com%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AACIS" class="Z3988"></span></span> </li> <li id="cite_note-acis_functionality-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-acis_functionality_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070309194852/http://www.spatial.com/products/acis.html">"ACIS Functionality"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.spatial.com/products/acis.html">the original</a> on 2007-03-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-03-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=ACIS+Functionality&rft_id=http%3A%2F%2Fwww.spatial.com%2Fproducts%2Facis.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AACIS" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.spaceclaim.com/en/support/FAQ/General_FAQ.aspx?fss=General%20Questions">"SpaceClaim Frequently Asked Questions"</a>. SpaceClaim Corporation<span class="reference-accessdate">. Retrieved <span class="nowrap">17 May</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SpaceClaim+Frequently+Asked+Questions&rft.pub=SpaceClaim+Corporation&rft_id=http%3A%2F%2Fwww.spaceclaim.com%2Fen%2Fsupport%2FFAQ%2FGeneral_FAQ.aspx%3Ffss%3DGeneral%2520Questions&rfr_id=info%3Asid%2Fen.wikipedia.org%3AACIS" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ACIS&action=edit&section=17" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.spatial.com/">Spatial Corporation Homepage</a></li> <li><a rel="nofollow" class="external text" href="http://www.spatial.com/products/3d-acis-modeling">3D ACIS Modeler Official Website</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20071013144024/http://forums.spatial.com/">Faces and Facets Spatial's Online Community Forum</a></li> <li><a rel="nofollow" class="external text" href="http://paulbourke.net/dataformats/sat/sat.pdf">ACIS File Format</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060907200703/https://lists.cs.columbia.edu/cucslists/listinfo/acis-alliance">ACIS Alliance</a></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation journal cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20061018071109/http://www.caduser.com/reviews/reviews.asp?a_id=66">"Healing the wounds of data conversion"</a>. <i>AEC Magazine</i>. <b>13</b> (3). CAD User. March 2000. Archived from <a rel="nofollow" class="external text" href="http://www.caduser.com/reviews/reviews.asp?a_id=66">the original</a> on 2006-10-18<span class="reference-accessdate">. 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href="/wiki/Virtools" class="mw-redirect" title="Virtools">Virtools</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dassault_Group" title="Dassault Group">Dassault Group</a></li> <li><a href="/wiki/Spatial_Corp" title="Spatial Corp">Spatial Corp</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Computer-aided_design_(CAD)_software385" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:CAD_software" title="Template:CAD software"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:CAD_software" title="Template talk:CAD software"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:CAD_software" title="Special:EditPage/Template:CAD software"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Computer-aided_design_(CAD)_software385" style="font-size:114%;margin:0 4em"><a href="/wiki/Computer-aided_design" title="Computer-aided design">Computer-aided design</a> (CAD) software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_and_open-source_software" title="Free and open-source software">Free and<br />open-source</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mechanical_systems_drawing" title="Mechanical systems drawing">Mechanical</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BRL-CAD" title="BRL-CAD">BRL-CAD</a></li> <li><a href="/wiki/FreeCAD" title="FreeCAD">FreeCAD</a></li> <li><a href="/wiki/HeeksCAD" title="HeeksCAD">HeeksCAD</a></li> <li><a href="/wiki/LibreCAD" title="LibreCAD">LibreCAD</a></li> <li><a href="/wiki/Open_Cascade_Technology" title="Open Cascade Technology">Open Cascade Technology</a></li> <li><a href="/wiki/OpenSCAD" title="OpenSCAD">OpenSCAD</a></li> <li><a href="/wiki/OpenVSP" title="OpenVSP">OpenVSP</a></li> <li><a href="/wiki/QCAD" title="QCAD">QCAD</a></li> <li><a href="/wiki/RattleCAD" title="RattleCAD">rattleCAD</a></li> <li><a href="/wiki/Salome_(software)" title="Salome (software)">Salome</a></li> <li><a href="/wiki/SolveSpace" title="SolveSpace">SolveSpace</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electronic_design_automation" title="Electronic design automation">Electrical</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Electric_(software)" title="Electric (software)">Electric</a></li> <li><a href="/wiki/FreePCB" title="FreePCB">FreePCB</a></li> <li><a href="/wiki/Fritzing" title="Fritzing">Fritzing</a></li> <li><a href="/wiki/GEDA" title="GEDA">gEDA</a></li> <li>Horizon EDA</li> <li><a href="/wiki/KiCad" title="KiCad">KiCad</a></li> <li><a href="/wiki/KTechLab" title="KTechLab">kTechLab</a></li> <li><a href="/wiki/Magic_(software)" title="Magic (software)">Magic</a></li> <li><a href="/wiki/Ngspice" title="Ngspice">ngspice</a></li> <li><a href="/wiki/Oregano_(software)" title="Oregano (software)">Oregano</a></li> <li><a href="/wiki/Pcb-rnd" title="Pcb-rnd">pcb-rnd</a></li> <li><a href="/wiki/Quite_Universal_Circuit_Simulator" title="Quite Universal Circuit Simulator">QUCS</a></li> <li><a href="/wiki/SPICE" title="SPICE">SPICE</a></li> <li><a href="/wiki/XCircuit" title="XCircuit">XCircuit</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mechanical_systems_drawing" title="Mechanical systems drawing">Mechanical</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ABViewer" title="ABViewer">ABViewer</a></li> <li><a href="/wiki/Alibre_Design" title="Alibre Design">Alibre Design</a></li> <li><a href="/wiki/Archicad" title="Archicad">Archicad</a></li> <li><a href="/wiki/AutoCAD" title="AutoCAD">AutoCAD</a></li> <li><a href="/wiki/Autodesk_Alias" title="Autodesk Alias">Autodesk Alias</a></li> <li><a href="/wiki/Autodesk_Inventor" title="Autodesk Inventor">Autodesk Inventor</a></li> <li><a href="/wiki/Autodesk_Revit" title="Autodesk Revit">Autodesk Revit</a></li> <li><a href="/wiki/AutoTURN" title="AutoTURN">AutoTURN</a></li> <li><a href="/wiki/BricsCAD" title="BricsCAD">BricsCAD</a></li> <li><a href="/wiki/CATIA" title="CATIA">CATIA</a></li> <li><a href="/wiki/Cimatron" title="Cimatron">Cimatron</a></li> <li><a href="/wiki/Cobalt_(CAD_program)" title="Cobalt (CAD program)">Cobalt</a></li> <li><a href="/wiki/PTC_Creo_Elements/Direct_Drafting" title="PTC Creo Elements/Direct Drafting">Creo Elements/Direct Drafting</a>, <a href="/wiki/Creo_Parametric" title="Creo Parametric">Creo Parametric</a></li> <li><a href="/wiki/DesignSpark_Mechanical" title="DesignSpark Mechanical">DesignSpark Mechanical</a></li> <li><a href="/wiki/FastCAD" title="FastCAD">FastCAD</a> (EasyCAD)</li> <li><a href="/wiki/FINE_MEP" title="FINE MEP">FINE</a></li> <li><a href="/wiki/FORAN_System" title="FORAN System">FORAN</a></li> <li><a href="/wiki/Fusion_360" title="Fusion 360">Fusion 360</a></li> <li><a href="/wiki/GstarCAD" title="GstarCAD">GstarCAD</a></li> <li><a href="/wiki/IRONCAD" title="IRONCAD">IRONCAD</a></li> <li><a href="/wiki/KeyCreator" title="KeyCreator">KeyCreator</a> (<i><a href="/wiki/CADKEY" title="CADKEY">CADKEY</a></i>)</li> <li><a href="/wiki/MEDUSA4" title="MEDUSA4">MEDUSA4</a></li> <li><a href="/wiki/MicroStation" title="MicroStation">MicroStation</a></li> <li><a href="/wiki/Siemens_NX" title="Siemens NX">NX</a></li> <li><a href="/wiki/Onshape" title="Onshape">Onshape</a></li> <li><a href="/wiki/PDMS_(software)" title="PDMS (software)">PDMS</a></li> <li><a href="/wiki/Pro/DESKTOP" title="Pro/DESKTOP">Pro/DESKTOP</a></li> <li><a href="/wiki/Rhinoceros_3D" title="Rhinoceros 3D">Rhinoceros 3D</a> <ul><li><a href="/wiki/Grasshopper_3D" title="Grasshopper 3D">Grasshopper 3D</a></li></ul></li> <li><a href="/wiki/RattleCAD#Source_closing" title="RattleCAD">rattleCAD 4.0</a></li> <li><a href="/wiki/Shapr3D" title="Shapr3D">Shapr3D</a></li> <li><a href="/wiki/Solid_Edge" title="Solid Edge">Solid Edge</a></li> <li><a href="/wiki/SolidWorks" title="SolidWorks">SolidWorks</a></li> <li><i><a href="/wiki/Sonata_(building_design_software)" title="Sonata (building design software)">Sonata</a></i> (<i><a href="/wiki/RUCAPS" title="RUCAPS">RUCAPS</a></i>)</li> <li><a href="/wiki/SpaceClaim" title="SpaceClaim">SpaceClaim</a></li> <li><a href="/wiki/T-FLEX_CAD" title="T-FLEX CAD">T-FLEX CAD</a></li> <li><a href="/wiki/Tinkercad" title="Tinkercad">Tinkercad</a></li> <li><a href="/wiki/TurboCAD" title="TurboCAD">TurboCAD</a></li> <li><a href="/wiki/VariCAD" title="VariCAD">VariCAD</a></li> <li><a href="/wiki/ZWCAD" title="ZWCAD">ZWCAD</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Electronic_design_automation" title="Electronic design automation">Electrical</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allegro_(CAD_software)" class="mw-redirect" title="Allegro (CAD software)">Allegro</a> (<i><a href="/wiki/OrCAD" title="OrCAD">OrCAD</a></i>)</li> <li><a href="/wiki/Altium_Designer" title="Altium Designer">Altium Designer</a> (<i><a href="/wiki/Altium#History" title="Altium">Protel</a></i> (<i><a href="/wiki/Autotrax" title="Autotrax">Autotrax</a></i> (<i>Easytrax</i>, <i>Tango PCB</i>)), <i><a href="/wiki/P-CAD" title="P-CAD">P-CAD</a></i>)</li> <li><a href="/wiki/AutoCAD" title="AutoCAD">AutoCAD</a> Electrical</li> <li><a href="/wiki/Mentor_Graphics" title="Mentor Graphics">BoardStation, IntegraStation, PADS, Xpedition</a></li> <li><a href="/wiki/CADSTAR" title="CADSTAR">CADSTAR</a></li> <li><a href="/wiki/CircuitMaker" title="CircuitMaker">CircuitMaker</a></li> <li><a href="/wiki/Zuken" title="Zuken">CR-2000, CR-3000</a>, <a href="/wiki/CR-5000" title="CR-5000">CR-5000</a>, <a href="/wiki/CR-8000" title="CR-8000">CR-8000</a></li> <li><a href="/wiki/DesignSpark_PCB" title="DesignSpark PCB">DesignSpark PCB</a></li> <li><a href="/wiki/DipTrace" title="DipTrace">DipTrace</a></li> <li><a href="/wiki/EAGLE_(program)" title="EAGLE (program)">EAGLE</a></li> <li><a href="/wiki/EasyEDA" title="EasyEDA">EasyEDA</a></li> <li><a href="/wiki/LTspice" title="LTspice">LTspice</a></li> <li><i><a href="/wiki/Micro-Cap" title="Micro-Cap">Micro-Cap</a></i></li> <li><a href="/wiki/NI_Multisim" title="NI Multisim">Multisim</a></li> <li><a href="/wiki/PCB_(software)" title="PCB (software)">PCB</a></li> <li><a href="/wiki/Proteus_Design_Suite" title="Proteus Design Suite">Proteus</a></li> <li><a href="/wiki/Pulsonix" title="Pulsonix">Pulsonix</a></li> <li><a href="/wiki/SolidWorks" title="SolidWorks">SolidWorks</a> Electrical</li> <li><a href="/wiki/TARGET_(CAD_software)" title="TARGET (CAD software)">TARGET</a></li> <li><a href="/wiki/TopoR" title="TopoR">TopoR</a> (<a href="/wiki/TopoR#Features" title="TopoR">Delta Design</a>, <i><a href="/wiki/TopoR#History" title="TopoR">FreeStyle</a></i>)</li> <li><a href="/wiki/NI_Ultiboard" title="NI Ultiboard">Ultiboard</a></li> <li><a href="/wiki/Upverter" title="Upverter">Upverter</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/File_format" title="File format">File formats</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3D_Manufacturing_Format" title="3D Manufacturing Format">3MF</a></li> <li><a class="mw-selflink-fragment" href="#File_format">ACIS</a></li> <li><a href="/wiki/Additive_manufacturing_file_format" title="Additive manufacturing file format">AMF</a></li> <li><a href="/wiki/C3D_Toolkit" title="C3D Toolkit">C3D</a></li> <li><a href="/wiki/KeyCreator" title="KeyCreator">CKD</a></li> <li><a href="/wiki/Specctra" title="Specctra">DSN</a></li> <li><a href="/wiki/Design_Web_Format" title="Design Web Format">DWF</a></li> <li><a href="/wiki/Open_Packaging_Conventions" title="Open Packaging Conventions">DWFX</a></li> <li><a href="/wiki/.dwg" title=".dwg">DWG</a></li> <li><a href="/wiki/AutoCAD_DXF" title="AutoCAD DXF">DXF</a></li> <li><a href="/wiki/IGES" title="IGES">IGES</a></li> <li><a href="/wiki/Wavefront_.obj_file" title="Wavefront .obj file">OBJ</a></li> <li><a href="/wiki/Open_Design_Alliance" title="Open Design Alliance">OpenDWG</a></li> <li><a href="/wiki/PLY_(file_format)" title="PLY (file format)">PLY</a></li> <li><a href="/wiki/OrCAD#OrCAD_PSpice" title="OrCAD">PSpice</a></li> <li><a href="/wiki/Specctra" title="Specctra">SES</a></li> <li><a href="/wiki/ISO_10303" title="ISO 10303">STEP</a></li> <li><a href="/wiki/STL_(file_format)" title="STL (file format)">STL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geometric_modeling_kernel" title="Geometric modeling kernel">Modeling<br />kernels</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">ACIS</a></li> <li><a href="/wiki/C3D_Toolkit" title="C3D Toolkit">C3D</a></li> <li><a href="/wiki/Digital_Geometric_Kernel" title="Digital Geometric Kernel">Digital Geometric Kernel</a> (<i>KernelCAD</i>)</li> <li><a href="/wiki/IntelliCAD" title="IntelliCAD">IntelliCAD</a></li> <li><a href="/wiki/Open_Cascade_Technology" title="Open Cascade Technology">Open Cascade Technology</a></li> <li><a href="/wiki/Open_Design_Alliance" title="Open Design Alliance">Open Design Alliance</a> (<i>Teigha</i>)</li> <li><a href="/wiki/Romulus_(modelling_kernel)" title="Romulus (modelling kernel)">Romulus</a> (<a href="/wiki/Parasolid" title="Parasolid">Parasolid</a>)</li> <li><a href="/wiki/Russian_Geometric_Kernel" title="Russian Geometric Kernel">RGK</a></li> <li><a href="/wiki/ShapeManager" title="ShapeManager">ShapeManager</a></li> <li><a href="/wiki/Solid_Modeling_Solutions" title="Solid Modeling Solutions">SMLib</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Historic</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/DAC-1" title="DAC-1">DAC-1</a></i> (1963)</li> <li><i><a href="/wiki/Sketchpad" title="Sketchpad">Sketchpad</a></i> (1963)</li> <li><a href="/wiki/UNISURF" title="UNISURF">UNISURF</a> (1968)</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><i>Italics</i> <b>= discontinued</b><br /><a href="/wiki/Computer-aided_industrial_design" title="Computer-aided industrial design">Computer-aided industrial design</a> • <a href="/wiki/Comparison_of_computer-aided_design_software" title="Comparison of computer-aided design software">Comparison</a> • <a href="/wiki/History_of_CAD_software" title="History of CAD software">History</a></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" 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