NX二次开发源码分享： NXOpen C++获取面的面积和周长
NX二次开发源码分享： NXOpen C++获取面的面积和周长
double MyClass::MeasureFaceArea(TaggedObject* face_tag)
{
char str;
Unit *unit1(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("SquareMilliMeter")));
Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
//FaceCollector issue is fixed in NX9
NXObject *nullNXObject(NULL);
MeasureFaceBuilder *measureFaceBuilder1;
measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
Face *face1 = dynamic_cast<Face *>(face_tag);
vector<Face *> faces1(1);
faces1 = face1;
FaceDumbRule *faceDumbRule1;
faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
std::vector<SelectionIntentRule *> rules1(1);
rules1 = faceDumbRule1;
measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();
NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();
MeasureFaces *measureFaces1;
measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);
double face_area = measureFaces1->Area();
sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
print(str);
double face_perimeter = measureFaces1->Perimeter();
sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
print(str);
delete measureFaces1;
delete faceDumbRule1;
measureFaceBuilder1->Destroy();
return face_area;
}
这个方法我试过了，我8.5的版本好像不行，计算的面积为0，可以直接创建measureFaces对象，用另一个重载函数，只要两行代码就能计算出面积
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