Create Mathematical Circular Arcs Example (C#)
This example shows how to create mathematical circular Arcs.
//--------------------------------------------------------------
// Preconditions:
// 1. Create a C# Windows console project.
// 2. Copy and paste this example into the C# IDE.
// 3. Add a reference to:
// install_dir\APISDK\tlb\DraftSight.Interop.dsAutomation.dll.
// 4. Add a reference to System.Windows.Forms.
// 5. Start DraftSight.
// 6. Press F5.
//
// Postconditions:
// 1. Connects to DraftSight.
// 2. Gets the active document.
// 3. Creates a mathematical circular Arc.
// 4. Gets the point on the mathematical circular Arc
// closest to a mathematical point. Click OK to close
// the message box.
// 5. Sets the radius for the mathematical circular Arc.
// 6. Creates another mathematical circular Arc.
// 7. Sets the radius for the mathematical circular Arc.
//----------------------------------------------------------------
using System;
using DraftSight.Interop.dsAutomation;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace MathCircArcCSharp
{
class Program
{
static void Main()
{
DraftSight.Interop.dsAutomation.Application dsApp;
//Connects to DraftSight application
dsApp = (DraftSight.Interop.dsAutomation.Application)Marshal.GetActiveObject("DraftSight.Application");
if (null == dsApp)
{
return;
}
//Aborts any command currently running in DraftSight
//to avoid nested commands
dsApp.AbortRunningCommand();
//Gets active document
Document dsDoc = dsApp.GetActiveDocument();
if (null == dsDoc)
{
MessageBox.Show("There are no open documents in DraftSight.");
return;
}
MathUtility dsMathUtility = dsApp.GetMathUtility();
//Creates mathematical circular Arc
MathPoint dsCenter = dsMathUtility.CreatePoint(3.0, 7.0, 0.0);
MathVector dsNormal = dsMathUtility.CreateVector(1.0, 0.0, 0.0);
double dsRadius = 2;
MathVector RefVector = dsMathUtility.CreateVector(1.0, 0.0, 0.0);
MathCircArc dsMathCircArc = dsMathUtility.CreateCircArc(dsCenter, dsNormal, RefVector, dsRadius, 20, 45);
//Gets point on mathematical circular Arc
//closest to this point
MathPoint point = dsMathUtility.CreatePoint(3.0, 7.0, 0.0);
MathPoint closestPoint = dsMathCircArc.GetClosestPointTo(point);
double X, Y, Z;
closestPoint.GetPosition(out X, out Y, out Z);
MessageBox.Show("Closest point of (3, 7, 0) is (" + X + ", " + Y + ", " + Z + ")");
//Sets radius of mathematical circular Arc
dsMathCircArc.Radius = 6.4;
//Creates a mathematical circular Arc defining a Circle
//with the specified center, normal, and radius
MathPoint center = dsMathUtility.CreatePoint(2.0, 3.1, 0.0);
MathVector normal = dsMathUtility.CreateVector(1.0, 0.0, 0.0);
double radius = 3.0;
MathCircArc circle = dsMathUtility.CreateCircle(center, normal, radius);
}
}
}