Help in finding the centroid center of a planar surface

[texaspete]

Hi all, I need so help. I have called PTC trying to get some help but the techician doesn't understand my needs. Here is the problem. I have a planar sketch that looks like a sharpen pencil. The lines are NOT parallel NOR the corners 90 degrees. I need to find the center of the area and have pro/e position a point there. Some more information, the part contains a solid, the datum sketch mentioned above is a a datum plane 100mm from the solid.


/----------| I tried to sketch what the part looks like.
< * | the astrisk is the point I need pro/e to
\----------| calculate and position as the shape of
pencil changes.

Thanks Texaspete

 

[Hora]

Texaspete,

Use the feature analysis. In the Model Analysis window, choose X-Section Mass Property/or Mass Property Analysis, then choosse a plane to create the section, Compute the results and close the window. Then scroll down the tree sub-window (from the Analysis window) until you will see the RESULT DATUMS. There you can choose CSYS_XSEC_COG (Coordinate system of the center of gravity)and PNT_XSEC_COG (point at the center of gravity) and swicht the values to YES. You'll obtain a CSYS or/and a POINT at the center of gravity.


-Hora

 

[texaspete]

Hora, I forgot to mention that I am using WF2. This is what is in my model tree, feature 1,2... etc respecfully. datum Right, datum top, datum front, prt_csys, sketch1 (this has the pencil shape), fill 1 (is a flat surface). The end function of the point is the centerline of a different sketch or the first protrusion.
In your post, are you thinking that I have a solid and a plane to intersect? I may have implied that, if so, sorry.

Does this help. texaspete

 

[Hora]

It doesn't matter if you use WF or 2001. You must use the Feature Analysis (a small icon below the PLANES, AXIS, CURVES, POINTS CSYS icons).

The sketch you draw is a section in your solid?

-Hora

 

[texaspete]

Sorry for the delayed post Hora, I was typing when I got your reply post.
UPDATE - I was looking at the command called "insert,model,datum,analysis" I have never used this, I probably used it in class - 10 years ago. Could this be the command to have Pro/e measure the surface area, find the center-of-the-centroid and place a datum-point there? Then I can place an next datum sketch there to start my first protrusion. My application is this, Duct work, Given outer boundaries (the shape of a pencil) I have to have a curtain amount of area (the created fill-surface) and the point (this is were I need pro/e to help me place the point at the center of the Centriod.
Texaspete

 

[Guest0527211403]

pete

Hora's method is the way to go. Unfortunately, Pro/E does not have a command to find the centroid of a flat surface, so the only way to determine it is to create a solid and use the coordinates from the COG.