Object Snap To Face

[jocose]

I am looking for a melScript that will snap an objects alignment and position to a selected face. I haven't been able to find one that will work on Maya 8.5 does anyone have any suggestions?

[shinyprem]

Hi !
As far I know oyu can make the object live to snap to its Faces. If you are looking for something like a button being held on the shirt... then duplicate the shirt with input connection, delete the Smooth modifier if it has one and select the face to create a hair follicle and parent the button to the shirt.

http://shinyprem.cgsociety.org

Rgds,

[kurianos3d]

select a face first and the select the object what you want to snap then try this code

CODE
global proc call_snap_here()
{
    string $get_Selection[] = ls -sl;
    int $get_total=size($get\_Selection);
    if ($get_total!=2)
    {
        error "Wrong Selection .. First Select Face then Select Object To Snap\n";    
    }
    else
    {
        string $get_first_val=$get_Selection[0];
        string $get_second_val=$get_Selection[1];
        string $get_info_here[] = polyInfo -fn $get\_first\_val;
        string $main_valpass[];
        tokenize $get_info_here[0] $main_valpass;
        print $main_valpass;
        string $setval_x="setAttr \""+$get_second_val+".tx\""+$main_valpass[2];
        string $setval_y="setAttr \""+$get_second_val+".ty\""+$main_valpass[3];
        string $setval_z="setAttr \""+$get_second_val+".tz\""+$main_valpass[4];
        eval($setval_x);
        eval($setval_y);
        eval($setval_z);
    }
}
call_snap_here;

[joojaa]

Or howabout just plain simply start of with:

Modify->Snap Together Tool

wich is the ntry level very easy to use option

[ewerybody]

didn't we have this conversation just some dozend posts ago?
seems not long for me.

do a search!

[joojaa]

Yes, anyway i fear that longtime readers have better memories then they think as often it was yesterday when in fact it was 100 posts down (wich does not mean it couldnt have been yesterday, i meen a week old posts can be way down in the list).

[jocose]

Thanks for all the responses. I found this post from awhile back...

Although none of the mel on there appears to be functional.

Kurainos, I tried your code but it just snapped my object to the center of the world ( selected the face of a cylinder and then shift select a sphere)...

I also tried the Snap Together Tool and it seams to work fine but it doesn't center the object to the polygon however it does align it which is useful.

[ewerybody]

I cannot find that one where you posted that website about getting the rotation from a vector :/... but here is another : http://www.highend3d.com/boards/index.php?...pic=234465& I found searching for "face"

[joojaa]

You cant get rotation form vector, you can rotate to a vector thats different your still leaving one axis arbitrary. You can get exact rotation form 2 vectors.

http://www.fundza.com/mel/axis\_to\_vector/a...\_to\_vector.html

tough bet give it va sane name and turn

$vecLength = mag(vec);

tough personally what i do is find the reference axis, the target axis take a cross of that to get the axis and axis angle my way trough to solution. (this is a axis angle conversion of sorts.) Mainly becasue its more flexible to do once you have the axis angle routine in place.

[kurianos3d]

i dont think so faceNormal will return a rotation ??
thts why object is goignt o the center of the face
coz its normal is getting value from center of face