On Dec 12, 2007 10:13 AM, Michele <michele.xsi(at)gmail.com> wrote:
>
> I had this problem before, and I recently found a workaround.
>
> First, add an animatable, siInt4 "null_parameter_update" parameter in your
> operator.
> Then create an exact copy of the original operator, called
> "your_operator_topology_fix" - the only difference should be it's outputport
> type, which will be connected to "null_parameter_update".
> Set the siClassifTopo classification to all parameters on both operators.
> Connect "your_operator_topology_fix" to "null_parameter_update".
> To enforce changes, the dummy parameter's should change its value all the
> time, so here's the Update that does it.
>
> XSIPLUGINCALLBACK CStatus your_operator_topology_fix_Update( CRef& in_ctxt )
> {
> OperatorContext oOp_ctxt( in_ctxt );
>
> long lUpdate = oOp_ctxt.GetInputValue( L"In_null_parameter_update",
> L"Group_update", 0 );
> lUpdate++;
> if (lUpdate > 99999998)
> lUpdate = 0;
> OutputPort oUpdate_parameter_out = oOp_ctxt.GetOutputPort();
> oUpdate_parameter_out.PutValue( lUpdate );
>
> return CStatus::OK;
> }
>
> This should work with multi-cluster-property-instance operators and will
> take care of updating any complete clusters on the object. Complete clusters
> need to be applied to the object after the operators have been connected,
> for some unknown reasons that's a requirement.
>
> The only obvious limitation is that everytime you want to connect a new
> input, you need to add it to both operators, so portgroups and inputports
> will be evaluated properly.
>
> Hope it helps,
>
> Michele
Mmm... I must be missing something obvious here. How can this help me
update my clusters?
What I'm trying to do is to create a cluster for each plane in my
polymesh containing the polygons in that plane. The problem is when
the polygon count varies after applying the operator. How can I update
my clusters to contain the new polygons (or remove the old ones)?
Note that I'm not using complete clusters...
Thanks,
Abdo Haji-Ali
Programmer
In|Framez
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