Thanks, but I cannot use this inside of _Update() as the port returns an empty CRef object.
The issue I’m running into now is my custom operator appears to connect with proper port and port group assignments, but I cannot find it anywhere in the scene. The command used to apply the custom operator is not throwing any warnings or errors either. I expect my custom operator on the primitive of the deformed object (deformer operator), but nothing is there. Earlier versions of this custom operator worked as expected, so I’m kind of scratching my head as to what’s going on. What’s really weird is I can find the custom operator using FindObjects2(), which says it’s attached to the scene_root. Yet when I look at the scene root in the scene explorer, there’s nothing there. Ever experience this weirdness? I only get this weird behavior when using port groups and port group instances via CustomOperator.AddInputPortByClassID(). If I use static ports via CustomOperator.AddInputPort() the operator connects as expected, but I lose some features. The command applying the custom operator is the same in both cases. Matt From: [email protected] [mailto:[email protected]] On Behalf Of Aloys Baillet Sent: Monday, October 06, 2014 2:02 AM To: [email protected] Subject: Re: SDK: C++ Custom Operator port connections Hi Matt, You should use the GetPortAt method to retrieve ports. From the C++ Operator reference: // For each port group for ( LONG idxGroup = 0; idxGroup < op.GetNumPortGroups(); idxGroup++ ) // for each instance in a port group for ( LONG idxInstance = 0; idxInstance < op.GetNumInstancesInGroup( idxGroup ); idxInstance++ ) // for each port in a port group instance for ( LONG idxPort = 0; idxPort < op.GetNumPortsInGroup( idxGroup ); idxPort++ ) // get a specific port Port port = op.GetPortAt( idxPort, idxGroup, idxInstance ); Cheers, Aloys On Thu, Oct 2, 2014 at 1:21 PM, Matt Lind <[email protected]<mailto:[email protected]>> wrote: I have a Custom Operator written using the C++ SDK, and it uses dynamic port connections. 1) From inside the _Update() callback, how can I determine the number of connected ports in a dynamic custom operator where the number of input ports is arbitrary and not known ahead of time? For example, the envelope operator – how does it know how many deformers and kinematic state properties are plugged into it? 2) How can I determine if an individual port is connected to anything? So far I’ve been creating an object of the expected type then calling .IsValid(). For example: X3DObject oObject = oOperator.GetInput( PortIndex ); If ( !oObject.IsValid() ) { return( CStatus::Fail ); } Is this the recommended way to validate a port connection? Thanks, Matt -- Aloys Baillet Lead Software Developer @ Animal Logic The LEGO Movie
