Rigging101 I didn't know you could do THAT?!?!?

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• Posted 8 months ago
• By lubitel
• Latest reply from lubitel
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1. 

   lubitel
   Member
   Posted 8 months ago
   #

   Hi

   I have a city with buildings (rectangles) placed around the scene that have their translation values zeroed out when they are where they shold be.

   I need a script that queries their relative offset from the worldOrigin and sets it as their translation value. (unreset/unfreze) So that if a cube is placed at WS [1,1,1] its translation value is [1,1,1] and not [0,0,0].

   xform shold be able to query the position and than i shold be able to setAttr if i made a loop right?

   Will some of you MEL Wizards help with this?

   heres a snapshot of the city:)

   http://www.facebook.com/photo.php?pid=3947939&l=54314cf20a&id=574437196

   cheers
2. 

   thnkr
   Member
   Posted 8 months ago
   #

   that's not very difficult:

   // center pivot
   xform -cp;
   // get translate from new pivot
   float $pivot[] = getAttr ".rotatePivot";
   //move to origin
   move -r (-1* $pivot[0]) (-1 * $pivot[1]) (-1 * $pivot[2]);
   // freeze transforms
   makeIdentity -apply true -t 1 -r 1 -s 1 -n 0;
   //reset transforms
   makeIdentity -apply false -t 1 -r 1 -s 1;
   //move object back to newly found pivot;
   move -r $pivot[0] $pivot[1] $pivot[2];
3. 

   lubitel
   Member
   Posted 8 months ago
   #

   Thank you for replying.

   I select all the objects i want to reReset pivot for and run the script...and

   for some reason i am getting error:

   // Error: float $pivot[] = getAttr ".rotatePivot"; //
   // Error: Invalid use of Maya object "getAttr". //

   I am using MAya2010 64bits....cout it be the reason?

   And if you want to have a look at the scene its here:

   http://www.opendrive.com/files/5946137_ch06F_6424/UnrealOsloDanny.ma

   Apriciate it.
4. 

   thnkr
   Member
   Posted 8 months ago
   #

   What I wrote works on a single object. If you want too use it on all models, put it in a for loop like this and select all models

   $sel = ls -sl;
   for ($tmp in $sel) {
   // center pivot
   xform -cp $tmp;
   // get translate from new pivot
   float $pivot[] = getAttr ($tmp + ".rotatePivot");
   //move to origin
   move -r (-1* $pivot[0]) (-1 * $pivot[1]) (-1 * $pivot[2]) $tmp ;
   // freeze transforms
   makeIdentity -apply true -t 1 -r 1 -s 1 -n 0 $tmp;
   //reset transforms
   makeIdentity -apply false -t 1 -r 1 -s 1 $tmp;
   //move object back to newly found pivot;
   move -r $pivot[0] $pivot[1] $pivot[2] $tmp;
   }
5. 

   lubitel
   Member
   Posted 8 months ago
   #

   strange, it now says:

   "$tmp" is an undeclared variable. //

   and I tried the previous script with a single object but it still gave me the same error:

   // Error: float $pivot[] = getAttr ".rotatePivot"; //
   // Error: Invalid use of Maya object "getAttr". //
6. 

   lubitel
   Member
   Posted 8 months ago
   #

   gotit:)

   it was the
   ls -sl

   :)

   thanx aLOT
7. 

   lubitel
   Member
   Posted 8 months ago
   #

   Ooooops ....It turns out that I also need to reReset the rotation values :)

   ----Help-----Thanx---

   :)

   Heres the script that worked for translation

   $sel = ls -sl;
   for ($tmp in $sel) {
   // center pivot
   xform -cp $tmp;
   // get translate from new pivot
   float $pivot[] = getAttr ($tmp + ".rotatePivot");
   //move to origin
   move -r (-1* $pivot[0]) (-1 * $pivot[1]) (-1 * $pivot[2]) $tmp ;
   // freeze transforms
   makeIdentity -apply true -t 1 -r 1 -s 1 -n 0 $tmp;
   //reset transforms
   makeIdentity -apply false -t 1 -r 1 -s 1 $tmp;
   //move object back to newly found pivot;
   move -r $pivot[0] $pivot[1] $pivot[2] $tmp;
   }