Sketcher External: Difference between revisions

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<languages/>
{{GuiCommand|Name=Sketcher_External|Workbenches=[[Sketcher Workbench|Sketcher]], [[PartDesign Workbench|PartDesign]]|Shortcut=E|MenuLocation=Sketch → Sketcher geometries → Sketcher External|SeeAlso=[[Sketcher_ConstructionMode|ConstructionMode]]}}
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<!--T:45-->
==Description==
{{Docnav
|[[Sketcher_Extend|Extend]]
|[[Sketcher_CarbonCopy|Carbon copy]]
|[[Sketcher_Workbench|Sketcher]]
|IconL=Sketcher_Extend.svg
|IconR=Sketcher_CarbonCopy.svg
|IconC=Workbench_Sketcher.svg
}}


<!--T:1-->
This tool overlaps a line (curve or segment) not belonging to the sketch in progress, but belonging to the support face, with a new magenta line and imparts it the ability to be placed in relation to a sketch element running.
{{GuiCommand
|Name=Sketcher External
|MenuLocation=Sketch → Sketcher geometries → Create external geometry
|Workbenches=[[Sketcher_Workbench|Sketcher]]
|Shortcut={{KEY|G}} {{KEY|X}}
|SeeAlso=[[Sketcher_ToggleConstruction|Sketcher ConstructionMode]]
}}


==Description== <!--T:2-->
Is useful for creating constraints such symmetries, parallels, etc.., between sketch elements and supporting face elements.


<!--T:3-->
Can be used lines of all objects created with the same sketch, that are on the sketch plane in progress, even if they have product separate forms.
The [[Image:Sketcher_External.svg|24px]] [[Sketcher_External|Sketcher External]] tool projects edges and/or vertices belonging to objects outside the sketch onto the sketch plane. The projected geometry is called "external geometry". It stays parametrically linked to its source objects. External geometry edges are marked with a dedicated [[Sketcher_Preferences#Appearance|color]] (default magenta) and ({{Version|1.0}}) linetype. Similar to construction geometry, external geometry is not visible outside the sketch, it is intended to help define constraints and other geometry inside the sketch itself.


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After creating the external geometry lines, for work in a cleaner environment, you can hide the object on which they are based.
[[Image:Sketcher_ExternalEsempio1.png]]
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<!--T:49-->
{{Caption|The two magenta lines are external geometry linked to edges of a pre-existing [[PartDesign_Pad|Pad]]. They are used to constrain the circles.}}


==Usage== <!--T:8-->
[[FILE:Sketcher_ExternalEsempio1.png]]
<br><br>


<!--T:50-->
==Usage==
See also: [[Sketcher_Workbench#Drawing_aids|Drawing aids]].
* Start a sketch to the previously selected face of a solid.
* Activate the tool External Geometry.
* Select, on the object existing, the line (segment or curve) that you will use.


<!--T:42-->
In the sketch appears a new magenta line.
# There are several ways to invoke the tool:
#* Press the {{Button|[[Image:Sketcher_External.svg|16px]] [[Sketcher_External|Create external geometry]]}} button.
#* Select the {{MenuCommand|Sketcher → Sketcher geometries → [[Image:Sketcher_External.svg|16px]] Create external geometry}} option from the menu.
#* Right-click in the [[3D_view|3D view]] and select the {{MenuCommand|[[Image:Sketcher_External.svg|16px]] Create external geometry}} option from the context menu.
#* Use the keyboard shortcut: {{KEY|G}} then {{KEY|X}}.
# The cursor changes to a cross with the tool icon.
# Select an external edge or a vertex. See [[#Notes|Notes]].
# External geometry is created.
# This tool always runs in continue mode: optionally keep selecting external edges and/or a vertices.
# To finish, right-click or press {{KEY|Esc}}, or start another geometry or constraint creation tool.


== Notes == <!--T:51-->
External Geometry can be used in a similar way to a [[Sketcher_ConstructionMode|Contruction line]], for example to produce symmetries or parallels.


<!--T:52-->
==Example==
* Only edges and vertices from objects within the same coordinate system can be selected. The sketch and the object must be in same [[PartDesign_Body|Body]], or the same [[Std_Part|Part]], or both in the global coordinate system. Use a [[PartDesign_SubShapeBinder|Binder]] to bring a copy of the object into the current coordinate system if required.
* Circular dependencies are not allowed. You cannot link to an object that depends on the sketch itself.
* Links to elements from other sketches are possible, and encouraged, as they are more reliable than links to generated (solid) geometry. The latter can suffer from the [[Topological_naming_problem|Topological Naming Problem]]. See [[Feature_editing#Advice_for_creating_stable_models|Advice for stable models]].


The magenta lines are External Geometry selected on two objects of the same extrusion products with previous sketch.
In this case they are used to create the constraints of tangency with the circumferences.
The line on the smaller rectangle is not used.<br>
[[FILE:Sketcher_ExternalEsempio2.png]]
<br><br>
The active sketch with the basic forms hidden and external geometries visible.<br>
[[FILE:Sketcher_ExternalEsempio4.png]]
<br><br>
When the sketch is closed, External Geometry lines are not visible.<br>
[[FILE:Sketcher_ExternalEsempio3.png]]
<br><br>


<!--T:43-->
{{Docnav
|[[Sketcher_Extend|Extend]]
|[[Sketcher_CarbonCopy|Carbon copy]]
|[[Sketcher_Workbench|Sketcher]]
|IconL=Sketcher_Extend.svg
|IconR=Sketcher_CarbonCopy.svg
|IconC=Workbench_Sketcher.svg
}}


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{{clear}}
{{Sketcher_Tools_navi{{#translation:}}}}
{{languages | {{fr|Sketcher_External/fr}} {{it|Sketcher_External/it}} }}
{{Userdocnavi{{#translation:}}}}

Revision as of 09:47, 21 April 2024

Sketcher External

Menu location
Sketch → Sketcher geometries → Create external geometry
Workbenches
Sketcher
Default shortcut
G X
Introduced in version
-
See also
Sketcher ConstructionMode

Description

The Sketcher External tool projects edges and/or vertices belonging to objects outside the sketch onto the sketch plane. The projected geometry is called "external geometry". It stays parametrically linked to its source objects. External geometry edges are marked with a dedicated color (default magenta) and (introduced in version 1.0) linetype. Similar to construction geometry, external geometry is not visible outside the sketch, it is intended to help define constraints and other geometry inside the sketch itself.

The two magenta lines are external geometry linked to edges of a pre-existing Pad. They are used to constrain the circles.

Usage

See also: Drawing aids.

  1. There are several ways to invoke the tool:
    • Press the Create external geometry button.
    • Select the Sketcher → Sketcher geometries → Create external geometry option from the menu.
    • Right-click in the 3D view and select the Create external geometry option from the context menu.
    • Use the keyboard shortcut: G then X.
  2. The cursor changes to a cross with the tool icon.
  3. Select an external edge or a vertex. See Notes.
  4. External geometry is created.
  5. This tool always runs in continue mode: optionally keep selecting external edges and/or a vertices.
  6. To finish, right-click or press Esc, or start another geometry or constraint creation tool.

Notes

  • Only edges and vertices from objects within the same coordinate system can be selected. The sketch and the object must be in same Body, or the same Part, or both in the global coordinate system. Use a Binder to bring a copy of the object into the current coordinate system if required.
  • Circular dependencies are not allowed. You cannot link to an object that depends on the sketch itself.
  • Links to elements from other sketches are possible, and encouraged, as they are more reliable than links to generated (solid) geometry. The latter can suffer from the Topological Naming Problem. See Advice for stable models.