PartDesign AdditiveLoft: Difference between revisions

From FreeCAD Documentation
(Added image, deleted Template:UnfinishedDocu)
No edit summary
(32 intermediate revisions by 7 users not shown)
Line 1: Line 1:
<languages/>
{{GuiCommand|Name=PartDesign AdditiveLoft|Workbenches=[[PartDesign Workbench|PartDesign]]|MenuLocation=Part Design → Additive loft|Shortcut=None|SeeAlso=[[PartDesign AdditivePipe]]}}
<translate>
<!--T:17-->
{{Docnav
|[[PartDesign_Revolution|Revolution]]
|[[PartDesign AdditivePipe|Additive pipe]]
|[[PartDesign_Workbench|PartDesign]]
|IconL=PartDesign_Revolution.svg
|IconC=Workbench_PartDesign.svg
|IconR=PartDesign AdditivePipe.svg
}}


<!--T:1-->
==Description==
{{GuiCommand
|Name=PartDesign AdditiveLoft
|Workbenches=[[PartDesign_Workbench|PartDesign]]
|MenuLocation=Part Design → Additive loft
|Version=0.17
|SeeAlso=[[PartDesign_AdditivePipe|PartDesign AdditivePipe]], [[PartDesign_SubtractiveLoft|PartDesign SubtractiveLoft]]
}}

==Description== <!--T:2-->

<!--T:3-->
'''Additive Loft''' creates a solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). If the Body already contains features, the additive loft will be merged to them.
'''Additive Loft''' creates a solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). If the Body already contains features, the additive loft will be merged to them.


</translate>
{{Version|0.17}}
[[File:PartDesign_AddLoft_example.png|none]]
[[File:PartDesign_AddLoft_example.png|none]]
<translate>
''On the left: cross-sections (A), (B) and (C); result on the right creating the Additive loft.''
<!--T:5-->
''On the left: cross-sections (A), (B) and (C); created Additive loft on the right.''


==Usage== <!--T:6-->
==How to use==


=== Dialog-based workflow === <!--T:21-->
# Press the {{KEY|[[Image:PartDesign AdditiveLoft.png|24px]] '''Additive loft'''}} button.

# In the '''Select feature''' dialog, select a sketch to be used as first cross-section and click {{KEY|OK}}.
<!--T:7-->
# Press the {{Button|[[File:PartDesign_AdditiveLoft.svg|24px]] [[PartDesign_AdditiveLoft|Additive loft]]}} button.
# In the '''Select feature''' dialog, select a sketch to be used as base profile object and click {{Button|OK}}.
#* Alternatively, a single sketch can be selected prior to pressing the Additive loft button.
#* Alternatively, a single sketch can be selected prior to pressing the Additive loft button.
# In the '''Loft parameters''', press the {{KEY|Add Section}} button.
# In the '''Loft parameters''', press the {{Button|Add Section}} button.
# Select a sketch in the 3D view. Repeat to select more sketches.
# Select the next sketch in the [[3D_view|3D view]]. Repeat to select more sketches in the order you want them to be lofted through. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.{{Version|0.19}})
# Set options if needed and click {{KEY|OK}}.
# Set options if needed and click {{Button|OK}}.

=== Selection-based workflow === <!--T:22-->

<!--T:23-->
{{Version|0.19}}
# Select several sketches. It is hereby important in what order you select them:
#* The sketch selected at first will become the base profile object in the next step
#* The sketches selected after the first one will become the loft sections. Also here the selection order is important: The sketch selected as second will become the first loft section, the one selected as third becomes the second section and so on. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.{{Version|0.19}})
# Press the {{Button|[[File:PartDesign_AdditiveLoft.svg|24px]] [[PartDesign_AdditiveLoft|Additive loft]]}} button.
# Set options if needed and click {{Button|OK}}.

==Options== <!--T:8-->


<!--T:9-->
==Options==
* '''Ruled surface''': makes straight transitions between cross-sections. Dos not apply to a loft with two cross-sections. If not checked, transitions will be smooth.
* '''Ruled surface''': makes straight transitions between cross-sections. Dos not apply to a loft with two cross-sections. If not checked, transitions will be smooth.
* '''Closed''': makes a transition from the last cross-section to the first, creating a loop.
* '''Closed''': makes a transition from the last cross-section to the first, creating a loop.


==Properties==
==Properties== <!--T:10-->

<!--T:11-->
* {{PropertyData|Label}}: name given to the operation, this name can be changed at convenience.
* {{PropertyData|Label}}: name given to the operation, this name can be changed at convenience.
* {{PropertyData|Sections}}: lists the sections used.
* {{PropertyData|Sections}}: lists the sections used.
* {{PropertyData|Ruled}}: see [[#Options|Options]].
* {{PropertyData|Ruled}}: see [[#Options|Options]].
* {{PropertyData|Closed}}: see [[#Options|Options]].
* {{PropertyData|Closed}}: see [[#Options|Options]].
* {{PropertyData|Refine}}: true or false. If set to true, cleans the solid from residual edges left by features. See [[Part RefineShape|Part RefineShape]] for more details.
* {{PropertyData|Midplane}}:
* {{PropertyData|Reversed}}:
* {{PropertyData|Profile}}: the see base profile object of the loft.
* {{PropertyData|Midplane}}: non applicable.
* {{PropertyData|Refine}}: true or false. If set to true, cleans the solid from residual edges left by features. See [[Part RefineShape]] for more details.
* {{PropertyData|Reversed}}: non applicable.
* {{PropertyData|Up To Face}}: non applicable.
* {{PropertyData|Allow Multi Face}}: non applicable.


==Limitations==
==Limitations== <!--T:12-->

<!--T:13-->
* Sketches must form closed profiles.
* Sketches must form closed profiles.
* It is not possible to loft to a vertex.
* It is not possible to loft to a vertex.
* A cross-section cannot lie on the same plane as the one immediately preceding it.
* A cross-section cannot lie on the same plane as the one immediately preceding it.
* To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.
* To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.
* Loft will be created in the order that cross sections were added

== Known Issues == <!--T:16-->
* Some failure modes will turn the part black

==Links== <!--T:14-->

<!--T:15-->
* [[Part Loft Technical Details|Part Loft Technical Details]] explains how a [[Part Loft|Part Loft]] is created, much of its content is relevant to the PartDesign Additive loft.

<!--T:18-->
{{Docnav
|[[PartDesign_Revolution|Revolution]]
|[[PartDesign AdditivePipe|Additive pipe]]
|[[PartDesign_Workbench|PartDesign]]
|IconL=PartDesign_Revolution.svg
|IconC=Workbench_PartDesign.svg
|IconR=PartDesign AdditivePipe.svg
}}


</translate>
==Links==
{{PartDesign Tools navi{{#translation:}}}}
* [[Part Loft Technical Details]] explains how a [[Part Loft]] is created, much of its content is relevant to the PartDesign Additive loft.
{{Userdocnavi{{#translation:}}}}

Revision as of 14:54, 19 September 2020

PartDesign AdditiveLoft

Menu location
Part Design → Additive loft
Workbenches
PartDesign
Default shortcut
None
Introduced in version
0.17
See also
PartDesign AdditivePipe, PartDesign SubtractiveLoft

Description

Additive Loft creates a solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). If the Body already contains features, the additive loft will be merged to them.

On the left: cross-sections (A), (B) and (C); created Additive loft on the right.

Usage

Dialog-based workflow

  1. Press the Additive loft button.
  2. In the Select feature dialog, select a sketch to be used as base profile object and click OK.
    • Alternatively, a single sketch can be selected prior to pressing the Additive loft button.
  3. In the Loft parameters, press the Add Section button.
  4. Select the next sketch in the 3D view. Repeat to select more sketches in the order you want them to be lofted through. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.introduced in version 0.19)
  5. Set options if needed and click OK.

Selection-based workflow

introduced in version 0.19

  1. Select several sketches. It is hereby important in what order you select them:
    • The sketch selected at first will become the base profile object in the next step
    • The sketches selected after the first one will become the loft sections. Also here the selection order is important: The sketch selected as second will become the first loft section, the one selected as third becomes the second section and so on. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.introduced in version 0.19)
  2. Press the Additive loft button.
  3. Set options if needed and click OK.

Options

  • Ruled surface: makes straight transitions between cross-sections. Dos not apply to a loft with two cross-sections. If not checked, transitions will be smooth.
  • Closed: makes a transition from the last cross-section to the first, creating a loop.

Properties

  • DataLabel: name given to the operation, this name can be changed at convenience.
  • DataSections: lists the sections used.
  • DataRuled: see Options.
  • DataClosed: see Options.
  • DataRefine: true or false. If set to true, cleans the solid from residual edges left by features. See Part RefineShape for more details.
  • DataProfile: the see base profile object of the loft.
  • DataMidplane: non applicable.
  • DataReversed: non applicable.
  • DataUp To Face: non applicable.
  • DataAllow Multi Face: non applicable.

Limitations

  • Sketches must form closed profiles.
  • It is not possible to loft to a vertex.
  • A cross-section cannot lie on the same plane as the one immediately preceding it.
  • To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.
  • Loft will be created in the order that cross sections were added

Known Issues

  • Some failure modes will turn the part black

Links