C++ MFnTypedAttribute::setDefault方法代码示例

MStatus DynamicEnum::initialize()
{
	MFnNumericAttribute nAttr;
	MFnTypedAttribute tAttr;
	MFnStringData sData;
	MStatus status; // Status will be used to hold the MStatus value

	// returned by each api function call. It is important
	// to check the status returned by a call to aid in
	// debugging. Failed API calls can result in subtle
	// errors that can be difficult to track down, you may
	// wish to use the CHECK_MSTATUS macro for any API
	// call where you do not need to provide your own
	// error handling.
	//

	// Attribute Initialization:
	aFilePath = tAttr.create( "filepath", "file", MFnData::kString, &status );
	CHECK_MSTATUS( status );
	CHECK_MSTATUS( tAttr.setKeyable( true ) );
	CHECK_MSTATUS( tAttr.setStorable( true ) );
	CHECK_MSTATUS( tAttr.setDefault( sData.create("") ) );

	aGridName = tAttr.create( "grid", "grd", MFnData::kString, &status );
	CHECK_MSTATUS( status );
	CHECK_MSTATUS( tAttr.setKeyable( true ) );
	CHECK_MSTATUS( tAttr.setStorable( true ) );
	CHECK_MSTATUS( tAttr.setDefault( sData.create("") ) );

	aOutColor = nAttr.createColor( "outColor", "oc", &status );
	CHECK_MSTATUS( status );
	CHECK_MSTATUS( nAttr.setHidden( false ) );
	CHECK_MSTATUS( nAttr.setReadable( true ) );
	CHECK_MSTATUS( nAttr.setWritable( false ) );

	// Next we will add the attributes we have defined to the node
	//
	CHECK_MSTATUS( addAttribute( aFilePath ) );
	CHECK_MSTATUS( addAttribute( aGridName ) );
	CHECK_MSTATUS( addAttribute( aOutColor ) );

	// The attributeAffects() method is used to indicate when the input
	// attribute affects the output attribute. This knowledge allows Maya
	// to optimize dependencies in the graph in more complex nodes where
	// there may be several inputs and outputs, but not all the inputs
	// affect all the outputs.
	//
	CHECK_MSTATUS( attributeAffects( aFilePath, aOutColor ) );
	CHECK_MSTATUS( attributeAffects( aGridName, aOutColor ) );

	return( MS::kSuccess );
}

//-----------------------------------------------------------------------
MStatus visualizeMeshNode::initialize()
//-----------------------------------------------------------------------
{ 
	MStatus				stat;
	MFnNumericAttribute	numericAttr;
	MFnTypedAttribute	typedAttr;



//!!!####################################################
	//COLOR
//!!!####################################################

	vtxColorObj = numericAttr.createColor("aColor","col");
	numericAttr.setKeyable(true);
	numericAttr.setStorable(true);
	numericAttr.setDefault(1.0,0.0,0.1);


//!!!####################################################
	//COLOR2
//!!!####################################################

	vtxColorObj2 = numericAttr.createColor("aColor2","col2");
	numericAttr.setKeyable(true);
	numericAttr.setStorable(true);
	numericAttr.setDefault(1.0,0.785,0.0);


//!!!####################################################
	//DRAWING ENABLED
//!!!####################################################

	drawingEnabled = numericAttr.create( "drawingEnabled", "en",
									MFnNumericData::kBoolean, 1, &stat );
	numericAttr.setKeyable(true);
	numericAttr.setStorable(true);
	if (!stat) {
		stat.perror("create drawingEnabled attribute");
		return stat;
	}


	
	/* // Dieses Feature ist eigentlich ziemlich unnötig
//!!!####################################################
	//SHOW ORIGINAL MESH
//!!!####################################################

	showOriginalObj = numericAttr.create( "showOriginal", "so",
									MFnNumericData::kBoolean, 1, &stat );
	numericAttr.setKeyable(true);
	numericAttr.setStorable(true);
	if (!stat) {
		stat.perror("create showOriginal attribute");
		return stat;
	}
	*/

//!!!####################################################
	//POINTSIZE
//!!!####################################################

	pointSize = numericAttr.create( "pointSize", "ps",
									MFnNumericData::kFloat, 10.0, &stat );
	numericAttr.setKeyable(true);
	numericAttr.setStorable(true);
	if (!stat) {
		stat.perror("create pointSize attribute");
		return stat;
	}
	

//!!!####################################################
	//INPUT MESH
//!!!####################################################

	inputMesh = typedAttr.create( "inputMesh", "is",
							 MFnMeshData::kMesh, &stat);
	if (!stat) {
		stat.perror("create inputMesh attribute");
		return stat;
	}


//!!!####################################################
	//VTXLOCATIONS (DUMMY OUT)
//!!!####################################################
	
	vtxLocations = numericAttr.create( "vtxLocations", "cv",
							 MFnNumericData::kBoolean,1, &stat);
	if (!stat) {
		stat.perror("create vtxLocations attribute");
		return stat;
	}



//!!!####################################################
//.........这里部分代码省略.........

MStatus cvColor::initialize()
{ 
	MStatus				stat;
	MFnNumericAttribute	numericAttr;
	MFnTypedAttribute	typedAttr;

	drawingEnabled = numericAttr.create( "drawingEnabled", "en",
									MFnNumericData::kBoolean, 1, &stat );
	if (!stat) {
		stat.perror("create drawingEnabled attribute");
		return stat;
	}

	pointSize = numericAttr.create( "pointSize", "ps",
									MFnNumericData::kFloat, 4.0, &stat );
	if (!stat) {
		stat.perror("create pointSize attribute");
		return stat;
	}
	
	inputSurface = typedAttr.create( "inputSurface", "is",
							 MFnNurbsSurfaceData::kNurbsSurface, &stat);
	if (!stat) {
		stat.perror("create inputSurface attribute");
		return stat;
	}

	cvLocations = typedAttr.create( "cvLocations", "cv",
							 MFnPointArrayData::kPointArray, &stat);
	if (!stat) {
		stat.perror("create cvLocations attribute");
		return stat;
	}

	MPointArray			defaultPoints;
	MFnPointArrayData	defaultArray;
	MObject				defaultAttr;

	defaultPoints.clear(); // Empty array
	defaultAttr = defaultArray.create (defaultPoints);
	stat = typedAttr.setDefault(defaultAttr);
	if (!stat) {
		stat.perror("could not create default output attribute");
		return stat;
	}

	stat = addAttribute (drawingEnabled);
		if (!stat) { stat.perror("addAttribute"); return stat;}
	stat = addAttribute (pointSize);
		if (!stat) { stat.perror("addAttribute"); return stat;}
	stat = addAttribute (inputSurface);
		if (!stat) { stat.perror("addAttribute"); return stat;}
	stat = addAttribute (cvLocations);
		if (!stat) { stat.perror("addAttribute"); return stat;}

	stat = attributeAffects( inputSurface, cvLocations );
		if (!stat) { stat.perror("attributeAffects"); return stat;}
	stat = attributeAffects( drawingEnabled, cvLocations );
		if (!stat) { stat.perror("attributeAffects"); return stat;}
	stat = attributeAffects( pointSize, cvLocations );
		if (!stat) { stat.perror("attributeAffects"); return stat;}
	
	return MS::kSuccess;
}