Function:
Set the time of the 3d clock, then the hour hand and minute hand move to the right position.
Code and the Clock file:
http://www.rayfile.com/files/a39e730c-ef9c-11dd-8c0e-0014221b798a/
Main Tech:
doIt()
undoIt()
redoIt()
isUndoable()
MDagPath
query and edit mode
MArgDatabase for dealing with input parameters
MFnTransform for transforming the clock hands
setResult for returning the query result
Snapshot:
Function:
Based on the previous code, implement the same function as before: create a bunch of cylinders along the selected curve.
Main Code:
Initialise the flags:
const char *numberFlag="-n", *numberLongFlag="-nmuber";
const char *radiusFlag="-r", *radiusLongFlag="-radius";
const char *heightFlag="-h", *heightLongFlag="-height";
MStatus Posts1Cmd::doIt(const MArgList &args)
{
int nPosts=5;
double radius=0.5;
double height=5.0;
MArgDatabase argData(syntax(),args);
if(argData.isFlagSet(numberFlag))
argData.getFlagArgument(numberFlag,0,nPosts);
if(argData.isFlagSet(radiusFlag))
argData.getFlagArgument(radiusFlag,0,radius);
if(argData.isFlagSet(heightFlag))
argData.getFlagArgument(heightFlag,0,height);
MSyntax function:
MSyntax Posts1Cmd::newSyntax()
{
MSyntax syntax;
syntax.addFlag(numberFlag,numberLongFlag,MSyntax::kLong);
syntax.addFlag(radiusFlag,radiusLongFlag,MSyntax::kDouble);
syntax.addFlag(heightFlag,heightLongFlag,MSyntax::kDouble);
return syntax;
}
static MSyntax newSyntax();Modification of initializations function:
stat=pluginFn.registerCommand("posts1", Posts1Cmd::creator,
Posts1Cmd::newSyntax);
Function:
Create a bunch of cylinders along the selected curve. The number of cylinders, the radius and the height can be specified through parameters.
Main Code:
MStatus Posts1Cmd::doIt(const MArgList &args)
{
int nPosts=5;
double radius=0.5;
double height=5.0;
unsigned index;
index=args.flagIndex("n", "number");
if(MArgList::kInvalidArgIndex!=index)
args.get(index+1,nPosts);
index=args.flagIndex("r","radius");
if(MArgList::kInvalidArgIndex!=index)
args.get(index+1, radius);
index=args.flagIndex("h", "height");
if(MArgList::kInvalidArgIndex!=index)
args.get(index+1,height);
MSelectionList selection;
MGlobal::getActiveSelectionList(selection);
MDagPath dagPath;
MFnNurbsCurve curveFn;
double heightRatio=height/radius;
MItSelectionList iter(selection, MFn::kNurbsCurve);
for(;!iter.isDone();iter.next())
{
iter.getDagPath(dagPath);
curveFn.setObject(dagPath);
double tStart, tEnd;
curveFn.getKnotDomain(tStart, tEnd);
MPoint pt;
int i;
double t;
double tIncr=(tEnd-tStart)/(nPosts-1);
for(i=0,t=tStart;i<nPosts;i++, t+=tIncr)
{
curveFn.getPointAtParam(t,pt,MSpace::kWorld);
pt.y+=0.5*height;
MGlobal::executeCommand(MString("cylinder -pivot ")+pt.x+" "+pt.y+" "+pt.z+
" -radius "+radius+" -axis 0 1 0 -heightRatio "+heightRatio);
}
}
return MS::kSuccess;
}
Snapshot:
As developing maya plug-in, we need to load the plug-in to maya to test whether it works well or not. Then we need to refine it in VS. Before unloading the plug-in in maya, it will throw errors because the loaded plug-in is not allowed to access!
Therefore, it's better to have load and unload button to ease our process.
{
string $pluginFile="D:\\Projects\\Maya\\MayaPlugin\\Posts1\\Debug\\Posts1.mll";
loadPlugin $pluginFile;
}
{
string $pluginFile="D:\\Projects\\Maya\\MayaPlugin\\Posts1\\Debug\\Posts1.mll";
if(`pluginInfo -query -loaded $pluginFile` && !`pluginInfo -query -unloadOk $pluginFile`)
file -f -new;
unloadPlugin Posts1.mll;
}The pluginFile is the plug-in file we developed.
Following the steps on the book Maya Complete Programming I, Chapter 4, Page 310-315, I have tried out the first plug-in created using C++ ( except the HelloWorld plug-in).
Function:
Creating five cylinders along the selected curve.
Source:
http://www.rayfile.com/files/2287b778-eed8-11dd-8ba3-0019d11a795f/
Snapshot:
Following the steps on the book Maya Complete Programming I, Chapter 4, Page 310-315, I have tried out the first plug-in created using C++ ( except the HelloWorld plug-in).
Function:
Creating five cylinders along the selected curve.
Source:
http://www.rayfile.com/files/2287b778-eed8-11dd-8ba3-0019d11a795f/
Snapshot: