[ARX程序]：如何得到AcDb3dPolyline的顶点，急！

longtao

请告诉我如何得到AcDb3dPolyline的顶点
谢谢

Echoyin

以前论坛有不少关于这个的帖子，你用“Polyline”搜索下~

longtao

求助一个函数void GetVetexPointOf3dPoly(AcDb3dPolyline* pCur,AcGePoint3dArray vertexPtArray)
我在论坛上找不到
谢谢

reader

void GetVetexPointOf3dPoly(AcDb3dPolyline* pPly3d,AcGePoint3dArray& vertexPtArray)
{
        AcDbObjectIterator* pVertsIter=pPly3d->vertexIterator();
        AcDb3dPolylineVertex* pVertex=NULL;
        AcDbObjectId vertexId;
        for(;!pVertsIter->done();pVertsIter->step())
        {
                vertexId=pVertsIter->objectId();
                pPly3d->openVertex(pVertex,vertexId,AcDb::kForRead);
                vertexPtArray.append(pVertex->position());
        }
        delete pVertsIter;
}

stoneball

virtual Acad::ErrorStatus
getGripPoints(
    AcGePoint3dArray& gripPoints,
    AcDbIntArray& osnapModes,

    AcDbIntArray& geomIds) const;

gripPoints        Input a pre-existing array to append grip points to
Output with the entity's grip points appended
osnapModes        not currently in use
geomIds        not currently in use

Function usage
This function is not intended to be called by ObjectARX applications. However, it is possible to do so (for example, as a pass-through from the getStretchPoints() method).
Function implementation in derived classes
This function should append to the gripPoints array any points that are to treated as grip points for the entity.
The gripPoints array is passed to all entities involved in the grip operation, so the array may already contain grip points for other entities. Therefore, it is very important to append the new points rather than assigning them to any existing elements in the array.

When finished appending all desired grip points, return Acad::eOk. If anything other than Acad::eOk is returned, then grips are not activated for this entity.
The osnapModes and geomIds arguments are not currently used.
Default implementation
Immediately returns Adesk::eNotImplemented.