polyline with arc

[Anonymous]

Hello,

Here is one question troubled me for a while.When I use AcGe, I found polyline can only express LineSegs, If I want convert Curves(linesegs and arcs) into polyline, Is there any class can use?

Thank you!

[Alexander.Rivilis]

Functions acdbConvertAcDbCurveToGelibCurve() and acdbConvertGelibCurveToAcDbCurve() (begining only with ObjectARX SDK 2012) can help you convert DB-curve to GE-curve and vice versa

[Anonymous]

Thanks a lot.

I mean that AcGePolyline3d can only Express Linear Entities, If I want describe both LineSeg and Arc use AcGePolyline3d, how can I do?

[Alexander.Rivilis]

From ObjectARX SDK Docs: AcGePolyline3d Represents a piecewise linear spline entity in 3D space.

That is why you have to using AcGeCompositeCurve3d class in order to represent connected end to end linear and arc segments, but can not using AcGePolyline3d

[Anonymous]

I used AcGeAugPoyline3d instead, it looks fit my target.

Thanks