Loft (3D): Difference between revisions

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Loft is a method to create complicated smooth 3D shapes in CAD and other 3D modeling software. Planar cross-sections of the desired shape are defined at chosen locations. Algorithms find a smooth 3D shape that fit these cross-sections. Designers can modify the shape through choice of fitting algorithm and input parameters. The method is used in packages such as Onshape, 3D Studio Max, Creo*, SolidWorks, NX, Autodesk Revit, and FreeCAD.

Consider lofting process in boat building, to visualise the process. The planar sections are defined by boat ribs spaced along its length. The final shape is produced by placing planks over the ribs to form a smooth skin.

In PTCs Creo and in Autodesk Revit it is referred to as a Blend or Swept Blend.

Examples (external links)

Modeling an irregular funnel with the loft tool

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 {{other uses|Loft (disambiguation)}}
+'''Loft''' is a method to create complicated smooth 3D shapes in [[CAD]] and other [[3D modeling]] software.  Planar cross-sections of the desired shape are defined at chosen locations. Algorithms find a smooth 3D shape that fit these cross-sections. Designers can modify the shape through choice of fitting algorithm and input parameters. The method is used in packages such as Onshape, [[3D Studio Max]], [[PTC Creo|Creo]]*, [[SolidWorks]], [[Siemens NX|NX]], [[Autodesk Revit]], and [[FreeCAD]].
-'''Loft''' is a variant of a [[wireframe]] volume of the [[Three-dimensional space|3D]] [[3D model|object]], a [[wikt:technique|technique]] used in [[3D modeling]] packages such as [[3D Studio Max]], [[Creo]]*, [[SolidWorks]], and [[NX]]. It's developed from [[plane (geometry)|planar]] sections spaced along an approximate path.
-Consider [[lofting]] in boat building to visualise the process, the planar sections are the boat ribs spaced along its length.  The planking then forms the 3D volume as it develops a smooth skin between the ribs.
+Consider [[lofting]] process in boat building, to visualise the process. The planar sections are defined by boat ribs spaced along its length. The final shape is produced by placing planks over the ribs to form a smooth skin.
-In [[PTC]]s [[Creo]] it is referred to as a Blend or Swept Blend.
+In [[Parametric Technology Corporation|PTC]]s Creo and in Autodesk Revit it is referred to as a Blend or Swept Blend.
 == See also ==
-* [[Parallel shift]]
 * [[Parallel transport]]
+* [[Lathe (graphics)]]
 ==Examples (external links)==
-* [http://www.oman3d.com/tutorials/3ds/lofting/ Modeling A Lantern Using Splines And Loft]
+* [https://www.freecadweb.org/wiki/Part_Loft Modeling an irregular funnel with the loft tool]
 [[Category:Computer-aided design]]