LScript - Generic_StackIt (v1.2)

LScript (Layout) to stack an object upon another while parenting them. Select item to stack and then item to stack upon.

Changes

• Now stacks multiple objects (v1.2)
• Fixed pivot offset (v1.1)
• Fixed getting correct boundingbox extents from layers
• Fixed issue requiring pivot to always be at objects lowest extent

Compatible with Newtek LightWave 9.6 and above.

// LScript Generic - www.StephenCulley.co.uk
//
// web   address: http://www.stephenculley.co.uk
// email address: email@stephenculley.co.uk

/*  
    LScript Generic - StackIt

    Generic_StackIt.ls

*/

@version 2.2
@warnings
@script generic
@name *Stack It

    sTitle = "*Stack It";
    sVersion = "v1.2";    

generic
{

    // Parent in Place
    bParentInPlace = Scene().generalopts[3];
    if(bParentInPlace){ParentInPlace();}

    // Item Select
    Items = Scene().getSelect();  
    if(Items == nil || Items.size() < 2)
      {
      info("Select an object to stack, then select object to stack upon.");
      return;
      }

    for(i = 1; i <= (Items.size() - 1);++i)
      {
      if(Items[i].genus == MESH && !Items[i].null && Items[i + 1].genus == MESH && !Items[i + 1].null)
        {
        GoToFrame(0); // Go To Frame 0
        vPivot1 = Items[i].getPivot(0.0);
        vPivot2 = Items[i + 1].getPivot(0.0);
        aBoundingBox1 = Items[i].position(getlayernumber(Items[i])); // Bounding Box      
        aBoundingBox2 = Items[i + 1].position(getlayernumber(Items[i + 1])); // Bounding Box      
        aBoundingBox1[1] -= vPivot1; 
        aBoundingBox1[2] -= vPivot1; 
        aBoundingBox2[1] -= vPivot2; 
        aBoundingBox2[2] -= vPivot2; 
        Items[i + 1].select();
        Position(vPivot1.x,aBoundingBox1[2].y - aBoundingBox2[1].y + vPivot1.y,vPivot1.z);
        CreateKey(0);    
        ParentItem(Items[i].id); // Parent
        }
      else
        {
        error("Only objects can be stacked."); 
        }
      }

    // Parent in Place
    if(bParentInPlace){ParentInPlace();}

    info(sTitle + " " + sVersion + " - developer: Stephen Culley - http://www.stephenculley.co.uk");
}

getlayernumber: item
{
    if(item.totallayers == 1){return(1);}
    sTokens = parse(":",item.name);
    iLayer = 0;
    if (strleft(sTokens[2],5)=="Layer")
      {
      iLayer = integer(sTokens[2]);
      }
    else
      {
      iTotal = item.totallayers;
      for(i = 1; i <= iTotal; i++)
        {
        if(item.layerVisible(i) == 1)
          {
          if(item.layerName(i) == sTokens[2])
            {
            iLayer = i;
            break;
            }
          }
        else
          {
          iTotal++;
          }
        }
      }
  return iLayer;
}

All scripts available at my Google Drive at
https://drive.google.com/open?id=1cR_q2GVUAJHumic1-A3eXV16acQnVTWs