// --------------------------------------------------------------------------------------------
MStatus polyModifierCmd::processUpstreamNode( modifyPolyData& data )
// --------------------------------------------------------------------------------------------
{
MStatus status = MS::kSuccess;
// Declare our function sets - Although dagNodeFn derives from depNodeFn, we need
// both since dagNodeFn can only refer to DAG objects.
// We will use depNodeFn for all times other when dealing
// with the DAG.
//
MFnDependencyNode depNodeFn;
MFnDagNode dagNodeFn;
// Use the selected node's plug connections to find the upstream plug.
// Since we are looking at the selected node's inMesh attribute, it will
// always have only one connection coming in if it has history, and none
// otherwise.
//
// If there is no history, copy the selected node and place it ahead of the
// modifierNode as the new upstream node so that the modifierNode has an
// input mesh to operate on.
//
//save the meshDagPath for later use
MDagPath::getAPathTo(data.meshNodeShape,myMeshPath);
MPlugArray tempPlugArray;
if( fHasHistory )
{
// Since we have history, look for what connections exist on the
// meshNode "inMesh" plug. "inMesh" plugs should only ever have one
// connection.
//
data.meshNodeDestPlug.connectedTo( tempPlugArray, true, false);
// ASSERT: Only one connection should exist on meshNodeShape.inMesh!
//
MStatusAssert( (tempPlugArray.length() == 1),
"tempPlugArray.length() == 1 -- 0 or >1 connections on meshNodeShape.inMesh" );
data.upstreamNodeSrcPlug = tempPlugArray[0];
// Construction history only deals with shapes, so we can grab the
// upstreamNodeShape off of the source plug.
//
// Dieser Bereich muss bleiben, weil diese Attribute noch bentigt werden
data.upstreamNodeShape = data.upstreamNodeSrcPlug.node();
depNodeFn.setObject( data.upstreamNodeShape );
data.upstreamNodeSrcAttr = data.upstreamNodeSrcPlug.attribute();
// Disconnect the upstream node and the selected node, so we can
// replace them with our own connections below.
//
MPlug nodePlug(data.meshNodeShape,data.meshNodeDestAttr ) ;
INVIS(cout<<data.upstreamNodeSrcPlug.name().asChar()<<" --|-- "<<nodePlug.name().asChar()<<endl);
status = fDGModifier.disconnect( data.upstreamNodeSrcPlug,
nodePlug );
MCheckStatus( status, "Disconnect Upstream mit meshNode" );
}
else // No History (!fHasHistory)
{
// Use the DAG node function set to duplicate the shape of the meshNode.
// The duplicate method will return an MObject handle to the transform
// of the duplicated shape, so traverse the dag to locate the shape. Store
// this duplicate shape as our "upstream" node to drive the input for the
// modifierNode.
//
depNodeFn.setObject( data.meshNodeShape );
data.upstreamNodeTransform = createDuplicate.createNode("mesh");
createDuplicate.doIt();
dagNodeFn.setObject( data.upstreamNodeTransform );
// Ensure that our upstreamNode is pointing to a shape.
//
MStatusAssert( (0 < dagNodeFn.childCount()),
"0 < dagNodeFn.childCount() -- Duplicate meshNode transform has no shape." );
data.upstreamNodeShape = dagNodeFn.child(0);
MPlug outMeshPlug = depNodeFn.findPlug("outMesh");
depNodeFn.setObject(data.upstreamNodeShape);
//jetzt inMesh upstreamNodeShape mit outMesh meshShape füllen
MDGModifier tempMod;
tempMod.connect(outMeshPlug,depNodeFn.findPlug("inMesh"));
tempMod.doIt();
//force DGEVAL
MString cmd = "dgeval -src ";
cmd += depNodeFn.name();
cmd += ".outMesh";
MGlobal::executeCommand(cmd,false,false);
tempMod.undoIt();
// Re-parent the upstreamNodeShape under our original transform
//
reparentDuplicate.reparentNode( data.upstreamNodeShape, data.meshNodeTransform );
reparentDuplicate.doIt();
deleteDuplicate.deleteNode( data.upstreamNodeTransform );
deleteDuplicate.doIt();
/*
status = fDagModifier.reparentNode( data.upstreamNodeShape, data.meshNodeTransform );
MCheckStatus( status, "reparentNode" );
// Perform the DAG re-parenting
//
// Note: This reparent must be performed before the deleteNode() is called.
// See polyModifierCmd.h (see definition of fDagModifier) for more details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
*/
// Mark the upstreamNodeShape (the original shape) as an intermediate object
// (making it invisible to the user)
//
dagNodeFn.setObject( data.upstreamNodeShape );
dagNodeFn.setIntermediateObject( true );
// Get the upstream node source attribute
//
data.upstreamNodeSrcAttr = dagNodeFn.attribute( "outMesh" );
data.upstreamNodeSrcPlug = MPlug(data.upstreamNodeShape, data.upstreamNodeSrcAttr);
/*
// Remove the duplicated transform node (clean up)
//
status = fDagModifier.deleteNode( data.upstreamNodeTransform );
MCheckStatus( status, "deleteNode" );
// Perform the DAG delete node
//
// Note: This deleteNode must be performed after the reparentNode() method is
// completed. See polyModifierCmd.h (see definition of fDagModifier) for
// details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
*/
// Cache the DAG path to the duplicate shape
//
dagNodeFn.getPath( fDuplicateDagPath );
//finally delete the tweaks to avoid double transformation
deleteTweaks();
}
return status;
}
MStatus polyModifierCmd::processUpstreamNode( modifyPolyData& data )
{
MStatus status = MS::kSuccess;
// Declare our function sets - Although dagNodeFn derives from depNodeFn, we need
// both since dagNodeFn can only refer to DAG objects.
// We will use depNodeFn for all times other when dealing
// with the DAG.
//
MFnDependencyNode depNodeFn;
MFnDagNode dagNodeFn;
// Use the selected node's plug connections to find the upstream plug.
// Since we are looking at the selected node's inMesh attribute, it will
// always have only one connection coming in if it has history, and none
// otherwise.
//
// If there is no history, copy the selected node and place it ahead of the
// modifierNode as the new upstream node so that the modifierNode has an
// input mesh to operate on.
//
MPlugArray tempPlugArray;
if( fHasHistory )
{
// Since we have history, look for what connections exist on the
// meshNode "inMesh" plug. "inMesh" plugs should only ever have one
// connection.
//
data.meshNodeDestPlug.connectedTo( tempPlugArray, true, false);
// ASSERT: Only one connection should exist on meshNodeShape.inMesh!
//
MStatusAssert( (tempPlugArray.length() == 1),
"tempPlugArray.length() == 1 -- 0 or >1 connections on meshNodeShape.inMesh" );
data.upstreamNodeSrcPlug = tempPlugArray[0];
// Construction history only deals with shapes, so we can grab the
// upstreamNodeShape off of the source plug.
//
data.upstreamNodeShape = data.upstreamNodeSrcPlug.node();
depNodeFn.setObject( data.upstreamNodeShape );
data.upstreamNodeSrcAttr = data.upstreamNodeSrcPlug.attribute();
// Disconnect the upstream node and the selected node, so we can
// replace them with our own connections below.
//
fDGModifier.disconnect( data.upstreamNodeShape,
data.upstreamNodeSrcAttr,
data.meshNodeShape,
data.meshNodeDestAttr );
}
else // No History (!fHasHistory)
{
// Use the DAG node function set to duplicate the shape of the meshNode.
// The duplicate method will return an MObject handle to the transform
// of the duplicated shape, so traverse the dag to locate the shape. Store
// this duplicate shape as our "upstream" node to drive the input for the
// modifierNode.
//
dagNodeFn.setObject( data.meshNodeShape );
data.upstreamNodeTransform = dagNodeFn.duplicate( false, false );
dagNodeFn.setObject( data.upstreamNodeTransform );
// Ensure that our upstreamNode is pointing to a shape.
//
MStatusAssert( (0 < dagNodeFn.childCount()),
"0 < dagNodeFn.childCount() -- Duplicate meshNode transform has no shape." );
data.upstreamNodeShape = dagNodeFn.child(0);
// Re-parent the upstreamNodeShape under our original transform
//
status = fDagModifier.reparentNode( data.upstreamNodeShape, data.meshNodeTransform );
MCheckStatus( status, "reparentNode" );
// Perform the DAG re-parenting
//
// Note: This reparent must be performed before the deleteNode() is called.
// See polyModifierCmd.h (see definition of fDagModifier) for more details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
// Mark the upstreamNodeShape (the original shape) as an intermediate object
// (making it invisible to the user)
//
dagNodeFn.setObject( data.upstreamNodeShape );
dagNodeFn.setIntermediateObject( true );
// Get the upstream node source attribute
//
data.upstreamNodeSrcAttr = dagNodeFn.attribute( "outMesh" );
// Remove the duplicated transform node (clean up)
//
status = fDagModifier.deleteNode( data.upstreamNodeTransform );
MCheckStatus( status, "deleteNode" );
// Perform the DAG delete node
//
// Note: This deleteNode must be performed after the reparentNode() method is
// completed. See polyModifierCmd.h (see definition of fDagModifier) for
// details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
// Cache the DAG path to the duplicate shape
//
dagNodeFn.getPath( fDuplicateDagPath );
}
return status;
}