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{{UnfinishedDocu{{#translation:}}}}
<div class="mw-translate-fuzzy">
{{Docnav
{{Docnav/ru
|[[Start Workbench|Start Workbench]]
|[[Start_Workbench/ru|Верстак Start]]
|[[TechDraw Module|TechDraw Module]]
|[[TechDraw_Workbench/ru|Верстак TechDraw]]
|IconL=Workbench_Start.svg
|IconL=Workbench_Start.svg
|IconR=Workbench_TechDraw.svg
|IconR=Workbench_TechDraw.svg
}}
}}
</div>


[[Image:Workbench_Surface.svg|thumb|128px|Surface workbench icon]]
[[Image:Workbench_Surface.svg|thumb|128px|Логотип верстака Surface]]


{{TOCright}}
{{TOCright}}


== Introduction ==
<span id="Introduction"></span>
== Введение ==


The [[Image:Workbench_Surface.svg|24px]] [[Surface_Workbench|Surface Workbench]] introduced in FreeCAD 0.17 provides tools to create and modify simple [https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline NURBS surfaces]. These tools have a similar functionality to the {{Button|[[File:Part Builder.svg|16px]] [[Part_Builder|Part Builder]]}} tool when the {{MenuCommand|Face from edges}} option is used. However, unlike that tool, the tools of the Surface Workbench are parametric and provide additional options. In this respect, the tools in this workbench are similar to {{Button|[[File:PartDesign_AdditiveLoft.svg|16px]] [[PartDesign_AdditiveLoft|PartDesign AdditiveLoft]]}} and {{Button|[[File:PartDesign_AdditivePipe.svg|16px]] [[PartDesign_AdditivePipe|PartDesign AdditivePipe]]}}.
[[Image:Workbench_Surface.svg|24px]] [[Surface_Workbench/ru|Верстак Surface]] предоставляет инструменты для создания и изменения простых [https://ru.wikipedia.org/wiki/NURBS поверхностей NURBS]. Эти инструменты имеют функциональность, похожую на инструменты {{Button|[[File:Part Builder.svg|16px]] [[Part_Builder/ru|Part Builder]]}} при использовании опции {{MenuCommand|Face from edges}}. Однако, в отличие от этих инструментов, Верстак Surface параметрический и даёт дополнительные опции. В этом отношении, инструменты этого верстака похожи на {{Button|[[File:PartDesign_AdditiveLoft.svg|16px]] [[PartDesign_AdditiveLoft/ru|PartDesign AdditiveLoft]]}} и {{Button|[[File:PartDesign_AdditivePipe.svg|16px]] [[PartDesign_AdditivePipe/ru|PartDesign AdditivePipe]]}}.


Некоторые из предоставляемых функций:
Some of the features provided are:
* Создание поверхностей из граничных ребер.
* Creation of surfaces from boundary edges.
* Выравнивание кривизны от соседних граней.
* Alignment of the curvature from neighboring faces.
* Ограничение поверхностей дополнительными кривыми и вершинами.
* Constraining of surfaces to additional curves and vertices.
* Расширение лица.
* Extension of faces.
* Можно использовать сетку в качестве шаблона для создания сплайновых кривых на ее поверхности.
* A mesh can be used as a template to create spline curves on its surface.


[[Image:Surface_example.png|350px]]
[[Image:Surface_example.png|350px]]


== Usage ==
<span id="Usage"></span>
== Применение ==


Верстак Surface предназначен для создания граней с формами, что невозможно сделать стандартными инструментами в других верстаках.
The Surface Workbench intends to create faces with shapes, which is not possible to do with the standard tools in other workbenches. The OCCT kernel gives as example a rectangular box with a rounded corners of different radii.


[[File:Toy_Duck.png|350px]]
[[File:Toy_Duck.png|350px]]
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{{Caption|Surface created with sketches placed in datum planes with the tools of the [[PartDesign Workbench|PartDesign Workbench]]}}
{{Caption|Surface created with sketches placed in datum planes with the tools of the [[PartDesign Workbench|PartDesign Workbench]]}}


The Surface Workbench integrates with other workbenches of FreeCAD. The above example was created from [[Sketcher Workbench|sketches]] placed on [[PartDesign Plane|datum planes]] in the [[PartDesign Workbench|PartDesign Workbench]]. The design can be fully parametric, when all datum planes and sketches are defined accordingly. In most cases it is sufficient with drawing a closed sketch to define the border for a face; then options are available to further modify its shape.
The Surface Workbench integrates with other workbenches of FreeCAD. The above example was created from {{Button|[[File:Sketcher_NewSketch.svg|16px]] [[Sketch|Sketches]]}} placed on {{Button|[[File:PartDesign_Plane.svg|16px]] [[PartDesign_Plane|PartDesign Datum planes]]}} in the [[File:Workbench_PartDesign.svg|24px]] [[PartDesign_Workbench|PartDesign Workbench]]. The design can be fully parametric if all datum planes and sketches are defined accordingly. In most cases it is sufficient to draw a closed sketch to define the boundary of a face, and then use different options to further modify its shape.

The generated surface cannot be placed inside a {{Button|[[File:PartDesign_Body.svg|16px]] [[PartDesign_Body|PartDesign Body]]}}. However, the generated surface can be contained inside a {{Button|[[File:Std_Part.svg|16px]] [[Std_Part|Std Part]]}} together with the associated {{Button|[[File:PartDesign_Body.svg|16px]] [[PartDesign_Body|PartDesign Body]]}} that holds the datum planes and sketches. The non-parametric {{Button|[[File:Part_Builder.svg|16px]] [[Part_Builder|Part Builder]]}} tool can then be used in order to create a [[Glossary#Shell|shell]] and finally a [[Glossary#Solid|solid]].


<span id="Tools"></span>
The current state of FreeCAD (v0.17) does not allow to place the surfaces into a [[PartDesign Body|PartDesign Body]]. However, the surfaces can be placed inside of a [[Std Part|Std Part]] container together with the [[PartDesign Body]] which holds all datum planes and sketches. The non parametric [[Part Builder|Part Shapebuilder]] tool must still be used in order to create a [[Glossary#Shell|shell]] and a regular [[Glossary#Solid|solid]] out of the set of surfaces.
== Инструменты ==


* [[File:Surface_Filling.svg|32px|link=Surface_Filling]] [[Surface_Filling|Filling]]: fills a series of boundary curves with a surface.
== Surface Tools ==


* [[File:Surface_GeomFillSurface.svg|32px|link=Surface_GeomFillSurface]] [[Surface_GeomFillSurface|Fill boundary curves]]: creates a surface from two, three or four boundary edges.
* [[File:Filling.svg|32px]] [[Surface_Filling|Filling...]]: fills a series of boundary curves with a surface. The surface can be modified by adding constraint curves and vertexes. The surface changes its shape so that the surface goes through the added constraint elements.
* [[File:BSplineSurf.svg|32px]] [[Surface_GeomFillSurface|Fill boundary curves]]: creates a surface from two, three or four boundary edges. Three different filling modes are available: Stretch, Coons, Curved.


* [[File:Surface_Sections.svg|32px]] [[Surface_Sections|Sections]]: creates a surface from edges that represent transversal sections of surface. {{Version|0.19}}
* [[File:Surface_Sections.svg|32px|link=Surface_Sections]] [[Surface_Sections|Sections]]: creates a surface from edges that represent transversal sections of surface.


* [[File:Surface_ExtendFace.svg|32px|link=Surface_ExtendFace]] [[Surface_ExtendFace|Extend face]]: extrapolates the surface at the boundaries with its local U parameter and V parameter.
== Additional Menu Tools ==


* [[File:Surface_CurveOnMesh.svg|32px|link=Surface_CurveOnMesh]] [[Surface_CurveOnMesh|Curve on mesh]]: creates approximated spline segments on top of a selected [[Mesh_Workbench|mesh]].
These tools are only found in the Surface menu.
* [[Surface_CurveOnMesh|Curve on mesh...]]: A selected mesh from the mesh workbench can serve as a template in order to create manually spline curves on it.
* [[Surface_ExtendFace|Extend face]]: Extrapolate the surface at the boundaries with its local u-parameter and v-parameter.


* [[File:Surface_BlendCurve.svg|32px|link=Surface_BlendCurve]] [[Surface_BlendCurve|Blend Curve]]: creates a Bezier curve between two edges, with desired continuity.
== Limitations ==


The used surface code from the CAD-kernel OCCT is very fragile and can not handle wrong input properly. This can cause FreeCAD to crash. The following situations cause problems and may crash FreeCAD:
* adding additional edges or wires as boundary to a surface, that would make up several faces. Add those edges only to '''Unbound Edges'''.
* Using of boundary edges, that fails do build a closed boundary at parametric changes of the document.


<div class="mw-translate-fuzzy">
{{Docnav
{{Docnav/ru
|[[Start Workbench|Start Workbench]]
|[[Start_Workbench/ru|Верстак Start]]
|[[TechDraw Module|TechDraw Module]]
|[[TechDraw_Workbench/ru|Верстак TechDraw]]
|IconL=Workbench_Start.svg
|IconL=Workbench_Start.svg
|IconR=Workbench_TechDraw.svg
|IconR=Workbench_TechDraw.svg
}}
}}
</div>
{{clear}}


{{Surface Tools navi{{#translation:}}}}
{{Surface Tools navi{{#translation:}}}}

Latest revision as of 18:46, 25 April 2024

Логотип верстака Surface

Введение

Верстак Surface предоставляет инструменты для создания и изменения простых поверхностей NURBS. Эти инструменты имеют функциональность, похожую на инструменты Part Builder при использовании опции Face from edges. Однако, в отличие от этих инструментов, Верстак Surface параметрический и даёт дополнительные опции. В этом отношении, инструменты этого верстака похожи на PartDesign AdditiveLoft и PartDesign AdditivePipe.

Некоторые из предоставляемых функций:

  • Создание поверхностей из граничных ребер.
  • Выравнивание кривизны от соседних граней.
  • Ограничение поверхностей дополнительными кривыми и вершинами.
  • Расширение лица.
  • Можно использовать сетку в качестве шаблона для создания сплайновых кривых на ее поверхности.

Применение

Верстак Surface предназначен для создания граней с формами, что невозможно сделать стандартными инструментами в других верстаках.

Surface created with sketches placed in datum planes with the tools of the PartDesign Workbench

The Surface Workbench integrates with other workbenches of FreeCAD. The above example was created from Sketches placed on PartDesign Datum planes in the PartDesign Workbench. The design can be fully parametric if all datum planes and sketches are defined accordingly. In most cases it is sufficient to draw a closed sketch to define the boundary of a face, and then use different options to further modify its shape.

The generated surface cannot be placed inside a PartDesign Body. However, the generated surface can be contained inside a Std Part together with the associated PartDesign Body that holds the datum planes and sketches. The non-parametric Part Builder tool can then be used in order to create a shell and finally a solid.

Инструменты

  • Filling: fills a series of boundary curves with a surface.
  • Sections: creates a surface from edges that represent transversal sections of surface.
  • Extend face: extrapolates the surface at the boundaries with its local U parameter and V parameter.
  • Blend Curve: creates a Bezier curve between two edges, with desired continuity.