C++ Export Plugin / can I get blendshape target directory?

[Anonymous]

HI, all.

I am developing an export plugin
So, I need to get the blend shape group, but I couldn't manage it.

MFnBlendShapeDeformer bsFn(bs);
auto attr = bsFn.attribute("targetDirectory");
if (!attr.isNull()) {
	MFnCompoundAttribute compAttr(attr);
	for (int c = 0; c < compAttr.numChildren(); c++) {
		auto child = compAttr.child(c);
		if (child.apiType() == MFn::kTypedAttribute) {
			//??
		} else if (child.apiType() == MFn::kNumericAttribute) {
			//??
		} else {
			//??
		}
	}
}

I understand that kTypedAttribute and kNumericAttribute can be obtained with such code, but I can not get the value.

I want to get

 a) the weight of the group

 b) the parent of the group

 c) child of the group

>blendshape.ma

setAttr ".tgdt[0].cid" -type "Int32Array" 2 -1 2 ;                   <-
setAttr ".tgdt[1].cid" -type "Int32Array" 2 0 1 ;                   <-
setAttr ".tgdt[1].dtn" -type "string" "Group 1";
setAttr -av ".tgdt[1].dwgh" 0.30000001192092896;　　　<-

please give me some help.

[Anonymous · Accepted solution]

sorry.

This Issue has been self-solved, using elementByPhysicalIndex.

I didn't notice the array of targetDirectry.

I got it with this code.

//get target directory plug.
//bsFn is MFnBlendShapeDeformer
auto tgdtPlug = bsFn.findPlug("tgdt");
if (!tgdtPlug.isNull()) {
	//loop for target directories.
	for (int tgdti = 0; tgdti < tgdtPlug.numElements(); tgdti++) {
		auto compund = tgdtPlug.elementByPhysicalIndex(tgdti);
		//process compound elements.
		for (int ci = 0; ci < compund.numChildren(); ci++) {
			//plug & attribute object
			auto& elemPlug = compund.child(ci);
			MFnAttribute elemAttr(elemPlug.attribute());
			auto sn = elemAttr.shortName();

			if (sn == "pnid") {
				elemPlug.asInt(); 		//parent id
			} else if (sn == "cid") {
				MObject intArray = elemPlug.asMObject();
				auto ia = MFnArrayAttrsData(intArray).intArray("");	//children id(s)
			} else if (sn == "dwgh") {
				elemPlug.asFloat();		//weight
			} else if (sn == "dtn") {
				elemPlug.asString();	//name
			} else if(etc)
				...
			}
		}
	}
}