topic putting a point where the centroid is in AutoCAD Forum

putting a point where the centroid is

AutoMarcus — Mon, 02 Dec 2019 23:48:00 GMT

G'day all

Here is an easyone for some free internet points (no pun intended)

hope someone has an answer.

if i get the mass properties of a solid, i get the centroid in x, y and z.

how can i make a point for these coordinates without copy and pasting the coordinates to a text file then making a point and copying the coordinates back into that point?

is there a command say CENTROID or similar where you click the 3d solid and bam, there is your centroid.

this would help immensely for crane lift plans

cheers

Marcus

Re: putting a point where the centroid is

АлексЮстасу — Tue, 03 Dec 2019 02:39:38 GMT

Hi, Marcus,

This is not my subject of work, but it was interesting whether I would find the right thing or not.😀

Maybe something like this is from dwg.ru of kpblc - https://forum.dwg.ru/showpost.php?p=398952&postcount=20.

Second lisp - set-center-3d-m.

Centroids are blocks for each of the specified 3DSOLID or REGION.
Didn 't check!!!
For some reason in blocks of 3 points...

Re: putting a point where the centroid is

Ajilal.Vijayan — Tue, 03 Dec 2019 05:47:55 GMT

Another option is to use the 3D Osnap -> center of face

Re: putting a point where the centroid is

vladimir_michl — Tue, 03 Dec 2019 09:20:52 GMT

You can use the CENTROID "command" (an add-on with command) to draw a COG point - see:

https://www.cadforum.cz/cadforum_en/how-to-draw-a-center-of-gravity-point-tip6820

For some types of 3D objects you can also use the 3D osnap "Center of face".

Vladimir Michl, www.cadstudio.cz - www.cadforum.cz

Re: putting a point where the centroid is

AutoMarcus — Fri, 06 Dec 2019 04:25:10 GMT

thankyou that worked

Re: putting a point where the centroid is

АлексЮстасу — Fri, 06 Dec 2019 16:47:43 GMT

I specifically chose set-center-3d-m.lsp because it creates points for all selected objects at once.
And specifically chose the option when points are created in blocks. Blocks can be given attributes to store and display the desired data.
And 3 points in these kpblc_dwgru_CenterPoint3D blocks were made specially - that them better it was visible in 3D. If PDMODE > 0, such "points" are always visible at any slope-turn in the 3D.