Sketcher ConstrainLock: Difference between revisions

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{{GuiCommand|Name=Sketcher ConstrainLock|Workbenches=[[Sketcher Workbench|Sketcher]], [[PartDesign Module|PartDesign_Workbench]]|MenuLocation=Sketcher → Constrain lock|SeeAlso=[[Constraint Coincedent]]}}
{{GuiCommand|Name=Sketcher ConstrainLock|Workbenches=[[Sketcher Workbench|Sketcher]], [[PartDesign Module|PartDesign_Workbench]]|MenuLocation=Sketcher → Constrain lock|SeeAlso=[[Constraint Coincedent]]}}
"Create a lock constraint on the selected item"
==Description==
This constraint tool attempts to <em>fully constrain</em> any selected item.


NOTE: It is advised that this tool be exclusively used on points for the time-being:
====Description====


Owing to the fact that FreeCAD is still under development - this tool exhibits strange behaviour when it attempts to 'lock' anything other than a point. For example (as of V0.12 R4802), when locking a circle by its circumferential line rather than its centre <em>point</em>, a horizontal constraint and a vertical constraint appear in the constraints dialogue, but they are both of value zero and do not appear in the graphics window.
<WRONG> This tool draws an arc by picking three points: the center, the start angle along the radius, and the end angle.
==Usage==
#Firstly it is necessary to highlight an item you wish to constrain. For reasons alluded-to above it is wise to only highlight a <em>point</em>.
#Highlighting of a drawing item is achieved by moving the mouse over the item and clicking the left-mouse-button.
#A highlighted item will change colour to green.
#Once an item is highlighted, left-clicking on the <em>lock</em> constraint serves to lock the highlighted item in-place. This usually manifests as two constraints: a horizontal distance constraint from the drawing axis origin, and a vertical constraint from the drawing axis origin.


{{languages | (none as yet)}}
When starting the tool, the mouse pointer changes to a white cross with a red arc icon. The coordinates of the pointer are shown beside it in blue in real time.

[[Image:Sketcher_ArcExample1.png|The center has been selected, dragging to set the radius‎]] [[Image:Sketcher_ArcExample2.png|407x360px|The center and start angle have been selected, dragging to set end angle‎]] </WRONG>

====Usage====

<WRONG> * Pick points on an empty area of the 3D view, or on an existing object (auto constraints must be active in TaskView).
* Pressing {{KEY|ESC}} or clicking the right mouse button cancels the function. </WRONG>


{{languages | {{es|Sketcher_Arc/es}} }}

Revision as of 20:12, 23 November 2011

Sketcher ConstrainLock

Menu location
Sketcher → Constrain lock
Workbenches
Sketcher, PartDesign_Workbench
Default shortcut
None
Introduced in version
-
See also
Constraint Coincedent

"Create a lock constraint on the selected item"

Description

This constraint tool attempts to fully constrain any selected item.

NOTE: It is advised that this tool be exclusively used on points for the time-being:

Owing to the fact that FreeCAD is still under development - this tool exhibits strange behaviour when it attempts to 'lock' anything other than a point. For example (as of V0.12 R4802), when locking a circle by its circumferential line rather than its centre point, a horizontal constraint and a vertical constraint appear in the constraints dialogue, but they are both of value zero and do not appear in the graphics window.

Usage

  1. Firstly it is necessary to highlight an item you wish to constrain. For reasons alluded-to above it is wise to only highlight a point.
  2. Highlighting of a drawing item is achieved by moving the mouse over the item and clicking the left-mouse-button.
  3. A highlighted item will change colour to green.
  4. Once an item is highlighted, left-clicking on the lock constraint serves to lock the highlighted item in-place. This usually manifests as two constraints: a horizontal distance constraint from the drawing axis origin, and a vertical constraint from the drawing axis origin.
Available translations of this page: (none as yet)