public override void doIt(MArgList args /*, MPxCommandClass cmd*/)
{
// This method is called from script when this command is called.
// It should set up any class data necessary for redo/undo,
// parse any given arguments, and then call redoIt.
MArgDatabase argData = new MArgDatabase(/*cmd.*/ syntax, args);
__isIndex = argData.isFlagSet(kIndexFlag);
// Get the plug specified on the command line.
MSelectionList slist = argData.SelectionObjects;
if (slist.length == 0)
{
throw new ArgumentException("Must specify an array plug in the form <nodeName>.<multiPlugName>.", "args");
}
__fPlug = slist.getPlug(0);
if (__fPlug == null)
{
throw new ArgumentException("Must specify an array plug in the form <nodeName>.<multiPlugName>.", "args");
}
// Construct a data handle containing the data stored in the plug.
MDataHandle dh = new MDataHandle();
try {
__fPlug.getValue(dh);
} catch (Exception) {
throw new ApplicationException("Could not get the plug value.");
}
MArrayDataHandle adh;
uint indx = 0;
try {
adh = new MArrayDataHandle(dh);
} catch (Exception) {
__fPlug.destructHandle(dh);
throw new ApplicationException("Could not create the array data handle.");
}
// Iterate over the values in the multiPlug. If the index flag has been used, just return
// the logical indices of the child plugs. Otherwise, return the plug values.
string errorMsg = null;
for (uint i = 0; i < adh.elementCount(); i++, adh.next())
{
try {
indx = adh.elementIndex();
} catch (Exception) {
continue;
}
if (__isIndex)
{
appendToResult((int)indx);
}
else
{
MDataHandle h = adh.outputValue();
if (h.isNumeric)
{
switch (h.numericType)
{
case MFnNumericData.Type.kBoolean: appendToResult(h.asBool); break;
case MFnNumericData.Type.kShort: appendToResult(h.asShort); break;
case MFnNumericData.Type.kInt: appendToResult(h.asInt); break;
case MFnNumericData.Type.kFloat: appendToResult(h.asFloat); break;
case MFnNumericData.Type.kDouble: appendToResult(h.asDouble); break;
default:
errorMsg = string.Format("{0}This sample command only supports boolean, integer, and floating point values. Not {1}.\n",
errorMsg != null ? errorMsg : "", h.numericType.ToString());
break;
}
}
}
}
__fPlug.destructHandle(dh);
if (errorMsg != null)
{
throw new ApplicationException(errorMsg);
}
;
return;
}
public override void doIt(MArgList args/*, MPxCommandClass cmd*/)
{
// This method is called from script when this command is called.
// It should set up any class data necessary for redo/undo,
// parse any given arguments, and then call redoIt.
MArgDatabase argData = new MArgDatabase(/*cmd.*/syntax, args);
__isIndex = argData.isFlagSet(kIndexFlag);
// Get the plug specified on the command line.
MSelectionList slist = argData.SelectionObjects;
if ( slist.length == 0 ) {
throw new ArgumentException("Must specify an array plug in the form <nodeName>.<multiPlugName>.", "args");
}
__fPlug = slist.getPlug (0) ;
if ( __fPlug == null ) {
throw new ArgumentException("Must specify an array plug in the form <nodeName>.<multiPlugName>.", "args");
}
// Construct a data handle containing the data stored in the plug.
MDataHandle dh = new MDataHandle() ;
try {
__fPlug.getValue(dh);
} catch (Exception) {
throw new ApplicationException("Could not get the plug value.");
}
MArrayDataHandle adh ;
uint indx =0 ;
try {
adh = new MArrayDataHandle(dh);
} catch (Exception) {
__fPlug.destructHandle(dh) ;
throw new ApplicationException("Could not create the array data handle.");
}
// Iterate over the values in the multiPlug. If the index flag has been used, just return
// the logical indices of the child plugs. Otherwise, return the plug values.
string errorMsg = null;
for (uint i = 0; i < adh.elementCount(); i++, adh.next())
{
try {
indx = adh.elementIndex() ;
} catch (Exception) {
continue ;
}
if ( __isIndex ) {
appendToResult ((int)indx) ;
} else {
MDataHandle h = adh.outputValue () ;
if (h.isNumeric)
{
switch (h.numericType)
{
case MFnNumericData.Type.kBoolean: appendToResult (h.asBool) ; break;
case MFnNumericData.Type.kShort: appendToResult (h.asShort) ; break;
case MFnNumericData.Type.kInt: appendToResult (h.asInt) ; break;
case MFnNumericData.Type.kFloat: appendToResult (h.asFloat) ; break;
case MFnNumericData.Type.kDouble: appendToResult (h.asDouble) ; break;
default:
errorMsg = string.Format("{0}This sample command only supports boolean, integer, and floating point values. Not {1}.\n",
errorMsg != null ? errorMsg : "", h.numericType.ToString());
break;
}
}
}
}
__fPlug.destructHandle (dh) ;
if (errorMsg != null)
throw new ApplicationException(errorMsg); ;
return;
}
public override bool compute(MPlug plug, MDataBlock block)
{
if (plug.equalEqual(constraintGeometry))
{
//
block.inputValue(constraintParentInverseMatrix);
//
MArrayDataHandle targetArray = block.inputArrayValue(compoundTarget);
uint targetArrayCount = targetArray.elementCount();
double weight, selectedWeight = 0;
if (weightType == GeometrySurfaceConstraintCommand.ConstraintType.kSmallestWeight)
{
selectedWeight = float.MaxValue;
}
MObject selectedMesh = null;
uint i;
for (i = 0; i < targetArrayCount; i++)
{
MDataHandle targetElement = targetArray.inputValue();
weight = targetElement.child(targetWeight).asDouble;
if (!equivalent(weight, 0.0))
{
if (weightType == GeometrySurfaceConstraintCommand.ConstraintType.kLargestWeight)
{
if (weight > selectedWeight)
{
MObject mesh = targetElement.child(targetGeometry).asMesh;
if (!mesh.isNull)
{
selectedMesh = mesh;
selectedWeight = weight;
}
}
}
else
{
if (weight < selectedWeight)
{
MObject mesh = targetElement.child(targetGeometry).asMesh;
if (!mesh.isNull)
{
selectedMesh = mesh;
selectedWeight = weight;
}
}
}
}
targetArray.next();
}
//
if (selectedMesh == null)
{
block.setClean(plug);
}
else
{
// The transform node via the geometry attribute will take care of
// updating the location of the constrained geometry.
MDataHandle outputConstraintGeometryHandle = block.outputValue(constraintGeometry);
outputConstraintGeometryHandle.setMObject(selectedMesh);
}
}
else
{
return(false);
}
return(true);
}