【UG\NX二次开发】NXOPEN 替换面（replaceFaceBuilder1）

本文链接：https://blog.youkuaiyun.com/weixin_50805145/article/details/138192695

本文介绍了NX编程中的三个关键函数：设置工作部件(setWorkPart)、恢复默认工作部件(ReCoverWorkPart)以及替换面(ReplaceFace)，涉及组件装配、工作部件管理和几何修改过程。

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//设置工作部件
void setWorkPart(tag_t Tag)
{
	tag_t objTag = NULL_TAG;
	int type = 0;
	int subtype = 0;
	UF_OBJ_ask_type_and_subtype(Tag, &type, &subtype);
	if (type == UF_feature_type) {
		UF_MODL_ask_feat_body(Tag, &objTag);
	}
	else {
		UF_MODL_ask_face_body(Tag, &objTag);
	}
	tag_t zhuangpei = NULL_TAG;
	if (objTag != NULL_TAG)
	{
		tag_t partTag = NULL_TAG;
		partTag = UF_ASSEM_ask_part_occurrence(objTag);//求体所在的组件
		if (partTag != NULL_TAG)
		{
			zhuangpei = UF_ASSEM_ask_prototype_of_occ(partTag);
			if (zhuangpei != NULL_TAG)
			{
				tag_t previous_work_part;
				previous_work_part = UF_ASSEM_ask_work_part();
				UF_ASSEM_set_work_part_quietly(zhuangpei, &previous_work_part);
				//UF_ASSEM_set_work_part(zhuangpei);//
			}
		}
	}
}
//恢复工作部件
void ReCoverWorkPart()
{

	Session* theSession = Session::GetSession();
	Part* workPart(theSession->Parts()->Work());
	Part* displayPart(theSession->Parts()->Display());

	Assemblies::Component* nullAssemblies_Component(NULL);
	PartLoadStatus* partLoadStatus2;
	theSession->Parts()->SetWorkComponent(nullAssemblies_Component, &partLoadStatus2);
	workPart = theSession->Parts()->Work();
	delete partLoadStatus2;

}
//替换面
int ReplaceFace(vector<tag_t>AllFace, tag_t face, bool flag, double distance, bool direction01_flag, tag_t& featrueTag, bool printErrorInfo) {
	UF_UNDO_mark_id_t mark_id;
	UF_UNDO_set_mark(UF_UNDO_visible, NULL, &mark_id);
	featrueTag = NULL_TAG;
	setWorkPart(AllFace[0]);
	try
	{
		Session* theSession = Session::GetSession();
		Part* workPart(theSession->Parts()->Work());
		Part* displayPart(theSession->Parts()->Display());
		Features::Feature* nullFeatures_Feature(NULL);
		Features::ReplaceFaceBuilder* replaceFaceBuilder1;
		replaceFaceBuilder1 = workPart->Features()->CreateReplaceFaceBuilder(nullFeatures_Feature);

		//要替换的面
		std::vector<Face*> faces1(AllFace.size());
		for (int i = 0; i < AllFace.size(); i++)
		{
			Face* face1(dynamic_cast<Face*>(NXObjectManager::Get(AllFace[i])));
			faces1[i] = face1;
		}
		FaceDumbRule* faceDumbRule1;
		faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);

		std::vector<SelectionIntentRule*> rules1(1);
		rules1[0] = faceDumbRule1;
		replaceFaceBuilder1->FaceToReplace()->ReplaceRules(rules1, false);

		//替换面
		std::vector<Face*> faces2(1);
		Face* face2(dynamic_cast<Face*>(NXOpen::NXObjectManager::Get(face)));
		faces2[0] = face2;
		FaceDumbRule* faceDumbRule2;
		faceDumbRule2 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces2);

		std::vector<SelectionIntentRule*> rules2(1);
		rules2[0] = faceDumbRule2;
		replaceFaceBuilder1->ReplacementFaces()->ReplaceRules(rules2, false);

		replaceFaceBuilder1->SetReverseDirection(flag);

		//传偏置距离
		if (!direction01_flag) {
			distance = -distance;
		}
		char distanceTemp[64];
		sprintf(distanceTemp, "%f", distance);
		replaceFaceBuilder1->OffsetDistance()->SetRightHandSide(distanceTemp);

		NXObject* nXObject1;
		nXObject1 = replaceFaceBuilder1->Commit();
		if (nXObject1)
		{
			featrueTag = nXObject1->Tag();
		}
		Expression* expression1(replaceFaceBuilder1->OffsetDistance());
		replaceFaceBuilder1->Destroy();
	}
	catch (const std::exception& ex)
	{
		ReCoverWorkPart();
		UF_UNDO_undo_to_mark(mark_id, NULL);
		if (printErrorInfo)
			uc1601((char*)ex.what(), 1);
		return 0;
	}
	ReCoverWorkPart();
	return 1;
}