How to swap the Z position of two objects ?

[Per-Anders]

You can write a script to do this yourself, it's not hard, the most complex bit is getting the two objects, basically your script would look something like:


//Returns the next object in the list to "op"
next_object(op)
{
if (!op) return NULL;
if (op->GetDown()) return op->GetDown();
while (!op->GetNext() && op->GetUp()) op = op->GetUp();
return op->GetNext();
}

//Returns the first selected object it finds
next_selected(op)
{
while (op)
{
if (op->GetBit(BIT_ACTIVE)) return op;
op = next_object(op);
}
return NULL;
}

main(doc, op)
{
//Find two selected objects in the document
var first_object = next_selected(doc->GetFirstObject()),
second_object = next_selected(next_object(first_object));

if (!first_object || !second_object) return FALSE;

//Get the objects positions
var first_pos = first_object->GetPosition();
var second_pos = second_object->GetPosition();

//Swap the Z's around
var temp = first_pos.z;
first_pos.z = second_pos.z;
second_pos.z = temp;

//Set the objects new positions
first_object->SetPosition(first_pos);
second_object->SetPosition(second_pos);

return TRUE;
}

[Horganovski]

That does exactly what I want to do.. thanks a million..

I don't know much code yet (apart from some Flash Actionscript2!) but I reckon I can modify that to do other stuff if needed.. thank you again,
Brian

[Horganovski]

I've managed to modify that script to control the Y or X position, and now I'm having a look to se if I can swap the rotations too, I see that you can use the GetRotation property, but I can't seem to access the individual settings.. I tried using .h as in heading but that didn't work.. Here's where I am so far but this doesin't work yet..

It seems like I'm close.. any ideas appreciated..

here's the snippet of code I've modified..

//Get the objects rotations
var first_rot = first_object->GetRotation();
var second_rot = second_object->GetRotation();

//Swap the h's around
var temp = first_rot.h;
first_rot.h = second_rot.h;
second_rot.h = temp;

//Set the objects new positions
first_object->SetRotation(first_rot);
second_object->SetRotation(second_rot);

[Per-Anders]

It returns a vector, the same as GetPosition, h = x, p = y, b = z.

[Horganovski]

That's fantastic.. thank you again.. much appreciated. I'm combining those functions together so I'll have a one button solution.. should be a great time saver..

Cheers,
Brian

[Horganovski]

Ok.. here's my finished version.. I like to call it the 'Walkcycle Buddy' :)

Most typical use would be to select two arm or leg controllers, run the script and it will swap their Z,Y and Pitch coordinates and mirror their X, Heading and Banking Coordinates..

I thought I'd post it in case it's useful for someone else..

Thanks again for your help.
Cheers,
Brian





//Returns the next object in the list to "op"
next_object(op)
{
if (!op) return NULL;
if (op->GetDown()) return op->GetDown();
while (!op->GetNext() && op->GetUp()) op = op->GetUp();
return op->GetNext();
}

//Returns the first selected object it finds
next_selected(op)
{
while (op)
{
if (op->GetBit(BIT_ACTIVE)) return op;
op = next_object(op);
}
return NULL;
}

main(doc, op)
{
//Find two selected objects in the document
var first_object = next_selected(doc->GetFirstObject()),
second_object = next_selected(next_object(first_object));

if (!first_object || !second_object) return FALSE;

//Get the objects rotations
var first_rot = first_object->GetRotation();
var second_rot = second_object->GetRotation();

//Get the objects positions
var first_pos = first_object->GetPosition();
var second_pos = second_object->GetPosition();


//Swap the Z's and Y's around and Mirror the X's
var tempx = first_pos.x*-1;
var tempz = first_pos.z;
var tempy = first_pos.y;

first_pos.z = second_pos.z;
second_pos.z = tempz;
first_pos.y = second_pos.y;
second_pos.y = tempy;
first_pos.x = second_pos.x*-1;
second_pos.x = tempx;


//Swap the Rotations around - Heading and Banking are Mirrored
var temphead = first_rot.x*-1;
var temppitch = first_rot.y;
var tempbank = first_rot.z*-1;

first_rot.x = second_rot.x*-1;
second_rot.x = temphead;

first_rot.y = second_rot.y;
second_rot.y = temppitch;

first_rot.z = second_rot.z*-1;
second_rot.z = tempbank;


//Set the objects new positions
first_object->SetPosition(first_pos);
second_object->SetPosition(second_pos);


//Set the objects new rotations
first_object->SetRotation(first_rot);
second_object->SetRotation(second_rot);

return TRUE;
}

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