# Get Distance Between Two Math Points Example (C#)

This example shows how to get the distance between two math points.

//-------------------------------------------------------------------
// Preconditions:
// 1. Create a C# Windows console project.
// 2. Copy and paste this project into the C# IDE.
// 3. Add a reference to:
// install_dir\APISDK\tlb\DraftSight.Interop.dsAutomation.
// 4. Add references to System and System.Windows.Forms.
// 5. Start DraftSight.
// 6. Run the macro.
// 7. Select two points when prompted in the DraftSight command window.
//
// Postconditions: The distance between two math points is printed in
// the DraftSight command window.
//-------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;
using DraftSight;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace GetDistance
{
class Program
{
private static DraftSight.Application dsApp;
static void Main(string[] args)
{
//Connect to DraftSight application
dsApp = ConnectToDraftSight();
if (null == dsApp)
{
return;
}
dsApp.AbortRunningCommand(); // abort any command currently running in DraftSight to avoid nested commands
//Get active document
Document dsDoc = dsApp.GetActiveDocument();
if (null == dsDoc)
{
MessageBox.Show("There are no open documents in DraftSight.");
return;
}
//Get math utility
MathUtility dsMathUtility = dsApp.GetMathUtility();
//Get distance between two points
GetDistance(dsMathUtility);
}
private static DraftSight.Application ConnectToDraftSight()
{
DraftSight.Application dsApp = null;
try
{
//Connect to DraftSight
dsApp = (DraftSight.Application)Marshal.GetActiveObject("DraftSight.Application");
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to DraftSight. Cause: " + ex.Message);
dsApp = null;
}
return dsApp;
}
private static void GetDistance(MathUtility dsMathUtility)
{
//Get command message
CommandMessage dsCommandMessage = dsApp.GetCommandMessage();
dsCommandMessage.PrintLine("Get distance between two points");
//Prompt to select the first point and second points
//to calculate the distance between them
double firstX, firstY, firstZ;
double secondX, secondY, secondZ;
if (dsCommandMessage.PromptForPoint("Specify the first point", out firstX, out firstY, out firstZ) &&
dsCommandMessage.PromptForPoint("Specify the second point", out secondX, out secondY, out secondZ))
{
//Create the first math point
MathPoint dsFirstMathPoint = dsMathUtility.CreatePoint(firstX, firstY, firstZ);
//Create the second math point
MathPoint dsSecondMathPoint = dsMathUtility.CreatePoint(secondX, secondY, secondZ);
//Get distance between points
MathPoint dsResultPoint1, dsResultPoint2;
double distance = dsMathUtility.Distance(dsFirstMathPoint, dsSecondMathPoint,
out dsResultPoint1, out dsResultPoint2);
//Get result point coordinates
dsResultPoint1.GetPosition(out firstX, out firstY, out firstZ);
dsResultPoint2.GetPosition(out secondX, out secondY, out secondZ);
string message = string.Format("The distance between ({0},{1},{2}) and ({3},{4},{5}) point is {6}.\n",
firstX, firstY, firstZ, secondX, secondY, secondZ, distance);
dsCommandMessage.PrintLine(message);
}
}
}
}