ArcGISEngine实现要素镜像复制

在ArcGISEngine中实现目标要素镜像复制主要用到下面几个接口

<!--[if !supportLists]-->Ø  <!--[endif]-->ITransformation

<!--[if !supportLists]-->Ø  <!--[endif]-->IAffineTransformation2D

<!--[if !supportLists]-->Ø  <!--[endif]-->ITransform2D

具体功能实现的代码如下

ILine nLine = new LineClass();//镜像轴线

nLine.PutCoords(pPoint1, pPoint2);

ITransformation nTransformation = new AffineTransformation2DClass();

IAffineTransformation2D nAffineTransformation2D = nTransformation as IAffineTransformation2D;

nAffineTransformation2D.DefineReflection(nLine);

ITransform2D nTransform2D = pPolyline as ITransform2D;//镜像目标

nTransform2D.Transform(esriTransformDirection.esriTransformForward, nTransformation);

IPolyline pPolyline1 = nTransform2D as IPolyline;//镜像所得