O-X-Y Type Attachment Modes: Difference between revisions

From FreeCAD Documentation
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Here we provide more detailed information on the use of '''Align O-X-Y''' type modes in the [[Part_EditAttachment|Part Attachment editor]].
Here we provide more detailed information on the use of '''Align O-X-Y''' type modes in the [[Part_EditAttachment|Part Attachment editor]].


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These modes are:
These modes are:
* Align O-Z-X
* Align O-Z-X
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* Align O-Y-X
* Align O-Y-X


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These modes are used to attach to a specified vertex, with an orientation determined by reference to other vertices or edges.
These modes are used to attach to a specified vertex, with an orientation determined by reference to other vertices or edges.


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{{Button|Reference1}} must be a vertex. The origin is mapped to this selected point.
{{Button|Reference1}} must be a vertex. The origin is mapped to this selected point.


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Note: If an edge is selected for {{Button|Reference1}}, O-X-Y type modes are not offered.
Note: If an edge is selected for {{Button|Reference1}}, O-X-Y type modes are not offered.


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{{Button|Reference2}} and {{Button|Reference3}} must be either vertices or edges. They provide direction information. For a vertex, the direction is from the origin to the selected vertex. For an edge, it is the direction of the edge. {{Button|Reference3}} is optional.
{{Button|Reference2}} and {{Button|Reference3}} must be either vertices or edges. They provide direction information. For a vertex, the direction is from the origin to the selected vertex. For an edge, it is the direction of the edge. {{Button|Reference3}} is optional.


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Take mode O-X-Z as an example:
Take mode O-X-Z as an example:
*The '''O''' represents the origin, corresponding to {{Button|Reference1}}.
*The '''O''' represents the origin, corresponding to {{Button|Reference1}}.
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*The '''Y'''-axis completes the orthogonal right-hand axis triad.
*The '''Y'''-axis completes the orthogonal right-hand axis triad.


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For other modes, the axes are mapped in a corresponding fashion.
For other modes, the axes are mapped in a corresponding fashion.


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If {{Button|Reference3}} is not provided, FreeCAD makes default choices for it.
If {{Button|Reference3}} is not provided, FreeCAD makes default choices for it.



Latest revision as of 14:04, 5 October 2023

Other languages:

Here we provide more detailed information on the use of Align O-X-Y type modes in the Part Attachment editor.

These modes are:

  • Align O-Z-X
  • Align O-Z-Y
  • Align O-X-Y
  • Align O-X-Z
  • Align O-Y-Z
  • Align O-Y-X

These modes are used to attach to a specified vertex, with an orientation determined by reference to other vertices or edges.

Reference1 must be a vertex. The origin is mapped to this selected point.

Note: If an edge is selected for Reference1, O-X-Y type modes are not offered.

Reference2 and Reference3 must be either vertices or edges. They provide direction information. For a vertex, the direction is from the origin to the selected vertex. For an edge, it is the direction of the edge. Reference3 is optional.

Take mode O-X-Z as an example:

  • The O represents the origin, corresponding to Reference1.
  • The X indicates that the X-axis of the attached object is to be aligned with the direction of Reference2.
  • The Z indicates that the Z-axis of the attached object is to be aligned with the component of the direction of Reference3 at right angles to the X-axis.
  • The Y-axis completes the orthogonal right-hand axis triad.

For other modes, the axes are mapped in a corresponding fashion.

If Reference3 is not provided, FreeCAD makes default choices for it.