Article	60000550
Type	HowTo
Product	Engine
Version	6
Date Added	6/18/2008
Submitted by	AtuL Gupta
Keywords

Subject

Create 2 circles in lines start and end points in a plane perpendicular to the line

Summary

How can I create 2 circles in lines start and end points in a plane perpendicular to the line ?

Solution

Try a code like:

private void button3_Click(object sender, EventArgs e)
{  
//create a line
  VectorDraw.Professional.vdFigures.vdLine line = new VectorDraw.Professional.vdFigures.vdLine();
  line.SetUnRegisterDocument(vdFramedControl.BaseControl.ActiveDocument);
  line.setDocumentDefaults();
  line.StartPoint = new VectorDraw.Geometry.gPoint(2, 3, 4);
  line.EndPoint = new VectorDraw.Geometry.gPoint(7, 8, 2);
  line.PenColor.SystemColor = Color.Red;
  line.PenWidth = .1;
  vdFramedControl.BaseControl.ActiveDocument.ActiveLayOut.Entities.AddItem(line);
 
//create a circle at the StartPoin of the previous line
  VectorDraw.Professional.vdFigures.vdCircle circle_SP = new VectorDraw.Professional.vdFigures.vdCircle();
  circle_SP.SetUnRegisterDocument(vdFramedControl.BaseControl.ActiveDocument);
  circle_SP.setDocumentDefaults();
  circle_SP.Center = new VectorDraw.Geometry.gPoint(line.StartPoint);
  circle_SP.Radius = (double)1.0;
//Set the circle's Extrusion vector to have the direction StartPoint ---> EndPoint
  circle_SP.ExtrusionVector = new VectorDraw.Geometry.Vector(new VectorDraw.Geometry.gPoint(line.StartPoint), new VectorDraw.Geometry.gPoint(line.EndPoint));
  vdFramedControl.BaseControl.ActiveDocument.ActiveLayOut.Entities.AddItem(circle_SP);
 
//create a circle at the EndPoint of the previous line
  VectorDraw.Professional.vdFigures.vdCircle circle_EP = new VectorDraw.Professional.vdFigures.vdCircle();
  circle_EP.SetUnRegisterDocument(vdFramedControl.BaseControl.ActiveDocument);
  circle_EP.setDocumentDefaults();
  circle_EP.Center = new VectorDraw.Geometry.gPoint(line.EndPoint);
  circle_EP.Radius = (double)1.0;
//Set the circle's Extrusion vector to have the direction EndPoint ---> StartPoint
  circle_EP.ExtrusionVector = new VectorDraw.Geometry.Vector(new VectorDraw.Geometry.gPoint(line.EndPoint), new VectorDraw.Geometry.gPoint(line.StartPoint));
  vdFramedControl.BaseControl.ActiveDocument.ActiveLayOut.Entities.AddItem(circle_EP);
 
  vdFramedControl.BaseControl.ActiveDocument.CommandAction.Zoom("E", null, null);
  vdFramedControl.BaseControl.ActiveDocument.CommandAction.Zoom("S", (double)0.8, null);
  MessageBox.Show("Circles with the right extrusion VectorDraw created. Adding some thickness to the circles just to show the results");
  circle_SP.Thickness = 0.8;
  circle_EP.Thickness = 0.8;
  vdFramedControl.BaseControl.ActiveDocument.Redraw(false);
}