adressing a TP Node's Objectfield

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On 01/06/2011 at 17:25, xxxxxxxx wrote:

i think what i'm trying to do here is get at the xpresso tag first,
then give an instruction to the node, right ?

i think i can get at the tag using :
var s = doc->FindObject("nullwithjustanexpressotag");
var tag = s->GetFirstTag();

in my twisted logic i should then be able to simply
tag#GRAV_OBJECT = nullObj;

but that's a no go of course.

Helper

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On 01/06/2011 at 20:52, xxxxxxxx wrote:

I could be mistaken.
But I don't think Coffee can access xpresso nodes.

-ScottA

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On 02/06/2011 at 06:56, xxxxxxxx wrote:

mmmm.. is that so ? that's frustrating. I expected a simple series of actions like this ( creating and naming a null, then adding it to the object field of a specific xpresso node. ), to be a pretty reachable goal for a first exploration.

i came across TTag Types (Texpresso). doesn't that allow for interaction with an xpresso tag ?

maybe i'd learn more if i rephrase it :
if you had to do something like this, how would you approach it ?

i'm trying to learn from being result oriented here.
if the task can't be done with one approach; rather then get stuck, I'm looking for alternatives to get at least some functionality. I guess I'm saying I'm also open for python suggestions.

anybody willing to enlighten me ?
(or am i asking for too much here ?)

cheers,
douwe

Helper

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On 02/06/2011 at 07:05, xxxxxxxx wrote:

You can't dive into the XPresso tag with COFFEE, you can just allocate and insert one.

But it is possible via Python.
Take a look into the Py4D documentation under c4d.modules.graphview, which represents the XPresso "module".

Cheers,
Niklas

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On 02/06/2011 at 09:20, xxxxxxxx wrote:

ok, i see.
that's clear.

let's see what i can dig up.
thx,
d

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On 02/06/2011 at 23:55, xxxxxxxx wrote:

Here's an example code by Scott Ayers.

Helper

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On 03/06/2011 at 04:39, xxxxxxxx wrote:

Originally posted by xxxxxxxx

Here's an example code by Scott Ayers.

yes, sir.
was looking at ( and being intimidated by ) that example yesterday.
need to take some time to experiment.

also, i think to populate a node's object field i may bump into needing GetOperatorContainer() & SetOperatorContainer() just like scott mentions.

i'll get back to this later when i finally get there.
interesting challenge.

d

Helper

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On 03/06/2011 at 16:00, xxxxxxxx wrote:

just to make sure :
Is it correct that Coffee (still) doesn't allow to write user data ?

that would allow me to do something like :
var s = doc->FindObject("User Data");
nullObj = new(NullObject);
nullObj->SetName("TPGravityNull");
doc->InsertObject( nullObj, NULL, NULL )
s#ID_USERDATA:2 = nullObj;

doesn't seem to work though.
d

Helper

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On 03/06/2011 at 17:13, xxxxxxxx wrote:

I don't think you can create new UserData entries with Coffee.
But you can definitely use it to put object's into a UserData link field:

var UDobject= doc->FindObject("Cube");//The object that has a Link type UserData on it  
var n = AllocObject(Onull); //Create a null in memory only  
n->SetName("TPGravityNull"); //Change it's name   
doc->InsertObject(n, NULL,NULL);//Grab it from memory and put it in the OM  
UDobject#ID_USERDATA:1 = n; //Put the Null in the first UD link field that's on the Cube

-ScottA

Helper

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On 03/06/2011 at 18:46, xxxxxxxx wrote:

yes sir,
that does work, and can be fit in nicely.
good lesson learned.

thx,
d