Attachment Editor help
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Attachment Editor help
Hello
I want to create a Datum Line at Body001. After I click the Datum Line I get the Attachment Editor.
I look at the attachment modes but they are not the same as in Part EditAttachment wiki page. (https://wiki.freecadweb.org/Part_EditAttachment) So what is going on at this page and at this Editor? Is there any other resources except the Basic Attachment Tutorial ?
I want to create a Datum Line at Body001. After I click the Datum Line I get the Attachment Editor.
I look at the attachment modes but they are not the same as in Part EditAttachment wiki page. (https://wiki.freecadweb.org/Part_EditAttachment) So what is going on at this page and at this Editor? Is there any other resources except the Basic Attachment Tutorial ?
- Attachments
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- Attach0.FCStd
- (4.67 KiB) Downloaded 5 times
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Re: Attachment Editor help
The file you uploaded just has a Body with nothing in it except its Origin object. There's no Body001. What do you want to attach the Datum line to?
@manos
@manos
Re: Attachment Editor help
So I changed from Body001 to Body @edwilliams16. The question is still valid .manos wrote: ↑Wed Jul 06, 2022 10:51 pm Hello
I want to create a Datum Line at Body. After I click the Datum Line I get the Attachment Editor.
I look at the attachment modes but they are not the same as in Part EditAttachment wiki page. (https://wiki.freecadweb.org/Part_EditAttachment)
So what is going on at this page and at this Editor? Is there any other resources except the Basic Attachment Tutorial ?
- Attachments
-
- Attach0.FCStd
- (4.67 KiB) Downloaded 4 times
Re: Attachment Editor help
The attachment dialogue is context sensitive, if there is nothing selected, then it offers the possible modes for the body objects.
In this case the body only contains the origin. It looks like FC offers some default modes in this case.
In this case the body only contains the origin. It looks like FC offers some default modes in this case.
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Re: Attachment Editor help
The attachment mode editor list is context sensitive. As you start selecting points, lines, vertices etc. the list gets shorter. In the case of attaching a Datum Line, there are modes available that make no sense for a 3D object - like Through Two Points. It appears no-one has felt the desire to document this particular situation. If you have a particular mode of attachment in mind, for your Datum Line, that you can't figure out for yourself, I'm sure we can help.
@manos
@manos
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Re: Attachment Editor help
For a Datum Point, you get yet another context-sensitive attachment mode list:
Attaching a point to something requires specifying 3 degrees of freedom, a line 5 degrees and a general 3D object 6 degrees. These are inherently different.
@manos
Attaching a point to something requires specifying 3 degrees of freedom, a line 5 degrees and a general 3D object 6 degrees. These are inherently different.
@manos
Re: Attachment Editor help
As @edwilliams16 wrote
It's a pity.edwilliams16 wrote: ↑Thu Jul 07, 2022 12:09 am ..It appears no-one has felt the desire to document this particular situation. .
Okay thanks everybody but at the moment I think that I will abandon the wild world of 0.20 and be back for a while at the civilized land of 0.19edwilliams16 wrote: ↑Thu Jul 07, 2022 12:09 am If you have a particular mode of attachment in mind, for your Datum Line, that you can't figure out for yourself, I'm sure we can help.
Re: Attachment Editor help
A very useful start to think about attachments. Thanks @edwilliams16edwilliams16 wrote: ↑Thu Jul 07, 2022 12:36 am
Attaching a point to something requires specifying 3 degrees of freedom, a line 5 degrees and a general 3D object 6 degrees. These are inherently different.
@manos
I think that in general, this stands for placements too. Doesn't it ?
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Re: Attachment Editor help
Not really. A Placement is six degrees of freedom - three for translation. (X, y, z) - three for rotation (yaw, pitch, roll). It takes six numbers to represent the rigid motion of a general object. They are encapsulated in a Placement.manos wrote: ↑Thu Jul 07, 2022 7:42 amA very useful start to think about attachments. Thanks @edwilliams16edwilliams16 wrote: ↑Thu Jul 07, 2022 12:36 am
Attaching a point to something requires specifying 3 degrees of freedom, a line 5 degrees and a general 3D object 6 degrees. These are inherently different.
@manos
I think that in general, this stands for placements too. Doesn't it ?