Article	60000583
Type	HowTo
Product	Engine
Version	6
Date Added	7/22/2008
Submitted by	Kostas Christodoulou
Keywords

Subject

IsClockWise property of Vertexes

Summary

Can you add the IsClockWise property in Vertexes ?

Bulges are also not calculated in Area of Vertexes.

Solution

The Area of Vertexes is calculated only for 2D points and without the bulges. Also the IsClockWise cannot be applied because the Vertexes doe not have an ECS matrix as the vdPolyline has. So in order to get the area of a Vertexes and if it is clock-wise or not you have to use a code like :

VectorDraw.Professional.vdFigures.vdPolyline poly = new VectorDraw.Professional.vdFigures.vdPolyline();
poly.SetUnRegisterDocument(vdFramedControl.BaseControl.ActiveDocument);
poly.SetDocumentDefaults();
poly.VertexList = new VectorDraw.Geometry.Vertexes(myVertexes);
poly.Update();
double myArea=poly.Area();
bool isClockW = poly.IsClockWise();