c++ - Pass custom data to attributes of MPxLocator (Maya API) -


in cpp class using maya api, initiate custom mpxlocator instance called mylocatornode , pass attributes variables:

mdagmodifier dagmod; mdgmodifier mdgmod;      myobj=dagmod.createnode("mylocatornode", <existing transform mobject>);     dagmod.doit();      mfndagnode mydagnode(myobj);     mydagnode.findplug("attributeone").setvalue(1.5);     mydagnode.findplug("attributetwo").setvalue(2.0);     mydagnode.findplug("attributethree").setvalue(3.1);     mydagnode.findplug("classattrib").setvalue(classpointer); // <- type should use ?

custom locator class:

mstatus mylocatornode::initialize() {     mfnnumericattribute nattr;     mfn???attribute customattr;  <-- can use here ?      attr1= nattr.create( "attributeone", "ao", mfnnumericdata::kfloat,1.0 );     attr2= nattr.create( "attributetwo", "ao", mfnnumericdata::kfloat,1.0 );     attr3= nattr.create( "attributethree", "ao", mfnnumericdata::kfloat,1.0 );     attr4= customattr.create("classattrib","ca", mycustomclass *); <-- , here ?         ...         }

i pass attribute/plug pointer custom class. attribute type in locator class me doing ? thanks

mfn???attribute customattr; <-- can use here ?

well, class pointer mean memory address? on x64 bit machine pointer int64, need store int64 integer. can use mfnnumericattribute::createaddress() way or store own int64 described here: http://around-the-corner.typepad.com/adn/2012/11/no-64bit-integer-attribute-in-maya-no-way.html


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