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问题是这样:
我想创建3D投影元素(圆和直线)之间的距离,这个尺寸线应该是从圆心到直线的距离,但是他却创建的是圆的边界与直线的距离;
同样的程序,对2D手画的圆和直线,就可以标出圆心到直线的距离。
我想标出3D投影元素(圆和直线)之间的从圆心到直线的距离,但是不能先画出圆心再标,就是说不能再创建新的元素!(这个问题也问过Dassault,他们也解决不了,很有挑战啊!呵呵)
请各位指点一下! 多谢!
其实我觉得开关就是dimDef._Info = ifCenter;这句,但是不知为什么,他对3D投影圆不管用,对2D手画的圆就OK!
程序如下:
CreateDim(IUnknown_var _circle,IUnknown_var _line)
{
// Gets the view annotation factory
CATIDrwAnnotationFactory_var spAnnFactory = _pView;
// Vertical distance dimension creation between Circle and Line
CATDrwDimType dimType = DrwDimDistance;
CATDimDefinition dimDef;
CATIUnknownList * piSelectionsList =NULL;
CATIUnknownListImpl * piListsel = new CATIUnknownListImpl();
piListsel->QueryInterface(IID_CATIUnknownList, (void **) &piSelectionsList);
piListsel->Release(); piListsel=NULL;
if (piSelectionsList)
{
piSelectionsList->Add(0, _circle);
piSelectionsList->Add(1, _line);
}
double pts[2][2];
dimDef.Orientation = DrwDimAuto ;
dimDef._Info = ifCenter;
if(SUCCEEDED( spAnnFactory->CreateDimension(piSelectionsList,(double**)pts,dimType,&dimDef,&_piDim) ) )
{
piSelectionsList->Release();
piSelectionsList = NULL;
return true;
}
else
{
if (piSelectionsList) {piSelectionsList->Release(); piSelectionsList = NULL;}
return false;
}
} |