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<h1 class="firstHeading">3D ACIS Deformable Modeling</h1>
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<p>3D Deformable Modeling is a unique interactive sculpting tool for shaping 3D models that is offered only by Spatial. Included as part of our suite of 3D modeling development technologies, 3D Deformable Modeling uses local and global editing features that allow for the easy creation and manipulation of free-form B-spline and NURBS curves and surfaces. This versatile mechanism gives you a profound level of artistic freedom when generating a precise <a href="/r18/index.php?title=Surface&action=edit" class="new" title="Surface">surface</a>.</p><table id="toc" class="toc" summary="Contents"><tr><td><div id="toctitle"><h2>Contents</h2></div><ul><li class="toclevel-1"><a href="#Improves_on_the_Standard"><span class="tocnumber">1</span> <span class="toctext">Improves on the Standard</span></a></li><li class="toclevel-1"><a href="#Save_Time_and_Resources"><span class="tocnumber">2</span> <span class="toctext">Save Time and Resources</span></a></li><li class="toclevel-1"><a href="#Create_Innovative_Surfaces_and_Curves"><span class="tocnumber">3</span> <span class="toctext">Create Innovative Surfaces and Curves</span></a></li><li class="toclevel-1"><a href="#Features"><span class="tocnumber">4</span> <span class="toctext">Features</span></a></li><li class="toclevel-1"><a href="#Full.2C_Multi-Surface_Capabilities"><span class="tocnumber">5</span> <span class="toctext">Full, Multi-Surface Capabilities</span></a></li><li class="toclevel-1"><a href="#Global_and_Local_Deformations"><span class="tocnumber">6</span> <span class="toctext">Global and Local Deformations</span></a></li></ul></td></tr></table><script type="text/javascript"> if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } </script><a name="Improves_on_the_Standard"></a><h2> <span class="mw-headline"> Improves on the Standard </span></h2><p>3D Deformable Modeling is a more powerful alternative to traditional surface modeling techniques such as control point manipulation and <a href="/r18/index.php?title=Lofting&action=edit" class="new" title="Lofting">lofting</a>. Control point manipulation can change a free-form shape interactively, but not while enforcing constraints. With lofting, you can build surfaces that satisfy several constraints, but it doesn't allow the sculpting of shapes. These time-consuming methods often result in surfaces with poor reflection lines and other undesirable qualities.</p><p>In contrast, 3D Deformable Modeling is intuitive, requiring less manipulation, time, and user knowledge while producing a higher-quality result.</p><p>The following sequence shows how <a href="/r18/index.php?title=Advanced_Covering&action=edit" class="new" title="Advanced Covering">Advanced Covering</a> can be used to fill the missing region of a surface while maintaining both positional and tangential <a href="/r18/index.php?title=Continuity&action=edit" class="new" title="Continuity">continuity</a> even on geometrically complex faces.</p><center><table class="gallery" cellspacing="0" cellpadding="0"> <caption>Advanced Covering with Deformable Modeling</caption> <tr> <td><div class="gallerybox" style="width: 225px;"> <div style="height: 168.25px;">SPAadv coverbefore.jpg</div> <div class="gallerytext"><p><!-- Tidy found serious XHTML errors --></p> </div> </div></td> <td><div class="gallerybox" style="width: 225px;"> <div style="height: 168.25px;">SPAadv coverafter.jpg</div> <div class="gallerytext"><p><!-- Tidy found serious XHTML errors --></p> </div> </div></td> </tr></table></center><p>Using an energy-based optimization strategy, 3D Deformable Modeling minimizes the energy stored due to bending and stretching. In this way, the shape that a deformable <a href="/r18/index.php?title=Curve&action=edit" class="new" title="Curve">curve</a> adopts is the one shape out of all possible shapes that minimizes the internal energy of the curve. This algorithm automatically produces fair shapes similar to those seen in the billowing of a sail or the clean line of a bending beam.</p><a name="Save_Time_and_Resources"></a><h2> <span class="mw-headline"> Save Time and Resources </span></h2><p>With 3D Deformable Modeling, you can easily sculpt shapes that automatically adhere to rich sets of constraints. It allows you to perform manipulations on curves and surfaces that would otherwise be extremely difficult or impossible to accomplish using control points, saving time and resources.</p><a name="Create_Innovative_Surfaces_and_Curves"></a><h2> <span class="mw-headline"> Create Innovative Surfaces and Curves </span></h2><p>Due to its precise shape and surface definition capabilities, 3D Deformable Modeling is ideal for complex mechanical jobs that require the rapid development of innovative surface and curve features, such as industrial design, aircraft skin and foil design (aerospace), automotive styling, prototype development, simulation, product design, shipbuilding, and free-form surface design for CAD/CAM/CAE and AEC applications.</p><a name="Features"></a><h2> <span class="mw-headline"> Features </span></h2><p>3D Deformable Modeling includes an extensive set of features that enable you to:</p><ul><li> Restrict a deformation to a limited local region.</li><li> Make small deformations in an existing shape, which modify the shape without sacrificing its original overall characteristics.</li><li> Create an entirely new shape by making very large deformations.</li><li> Increase the continuity of existing shapes, quilted surfaces, or network of curves.</li></ul><p>3D Deformable Modeling's functionality includes: Advanced Covering Allows a surface to be fit onto circuits (collections of edges that form closed loops) in solid or <a href="/r18/index.php?title=Wire&action=edit" class="new" title="Wire">wire</a> bodies, which is useful in consumer product design. This feature is commonly used for end-<a href="/r18/index.php?title=Capping&action=edit" class="new" title="Capping">capping</a>, post-translation corrections, and surface definition from curve data. Some of the capabilities of the Advanced Covering feature include:</p><ul><li> Creation of non-planar, n-sided boundaries</li><li> Retain positional and tangential continuity with adjacent surfaces</li><li> Individual specification of boundary continuity on each <a href="/r18/index.php?title=Edge&action=edit" class="new" title="Edge">edge</a></li><li> Placement of auxiliary point and curve restraints (<strong class='error'>Failed to parse (Missing texvc executable; please see math/README to configure.): G_0</strong></li></ul><pre>only)</pre><ul><li> Post-covering gap reporting (diagnostics)</li><li> Specification of initial surface⌨️ 快捷键说明
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