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<h1>Create and Change Trace Example (C#)</h1>
<p>This example shows how to create a Trace and change its vertex coordinates 
and thickness.</p>
<pre style="font-family: Consolas; font-size: 13; color: black; background: white"><span style="color:green;">//--------------------------------------------------------------</span>
<span style="color:green;">//&nbsp;Preconditions:</span>
<span style="color:green;">//&nbsp;1.&nbsp;Create&nbsp;a&nbsp;C#&nbsp;Windows&nbsp;console&nbsp;project.</span>
<span style="color:green;">//&nbsp;2.&nbsp;Copy&nbsp;and&nbsp;paste&nbsp;this&nbsp;code&nbsp;into&nbsp;the&nbsp;C#&nbsp;project.</span>
<span style="color:green;">//&nbsp;3.&nbsp;Add&nbsp;a&nbsp;reference&nbsp;to</span>
<span style="color:green;">//&nbsp;&nbsp;&nbsp;&nbsp;<i>install_dir</i>\<b>APISDK\tlb\DraftSight.Interop.dsAutomation.dll</b>.</span>
<span style="color:green;">//&nbsp;4.&nbsp;Add&nbsp;a&nbsp;reference&nbsp;to&nbsp;<b>System.Windows.Forms</b>.</span>
<span style="color:green;">//&nbsp;5.&nbsp;Start&nbsp;DraftSight.</span>
<span style="color:green;">//&nbsp;6.&nbsp;Press&nbsp;F5.</span>
<span style="color:green;">//</span>
<span style="color:green;">//&nbsp;Postconditions:&nbsp;</span>
<span style="color:green;">//&nbsp;1.&nbsp;Connects&nbsp;to&nbsp;DraftSight.</span>
<span style="color:green;">//&nbsp;2.&nbsp;Gets&nbsp;the&nbsp;active&nbsp;document.</span>
<span style="color:green;">//&nbsp;3.&nbsp;Creates&nbsp;a&nbsp;Trace.</span>
<span style="color:green;">//&nbsp;4.&nbsp;Sets&nbsp;the&nbsp;vertex&nbsp;coordinates&nbsp;of&nbsp;the&nbsp;Trace.</span>
<span style="color:green;">//&nbsp;5.&nbsp;Sets&nbsp;the&nbsp;thickness&nbsp;of&nbsp;the&nbsp;Trace.</span>
<span style="color:green;">//&nbsp;6.&nbsp;Gets&nbsp;the&nbsp;vertex&nbsp;coordinates&nbsp;of&nbsp;the&nbsp;Trace.</span>
<span style="color:green;">//&nbsp;&nbsp;&nbsp;&nbsp;Click&nbsp;<b>OK</b>&nbsp;to&nbsp;close&nbsp;each&nbsp;message&nbsp;box.</span>
<span style="color:green;">//&nbsp;7.&nbsp;Gets&nbsp;the&nbsp;thickness&nbsp;of&nbsp;the&nbsp;Trace.</span>
<span style="color:green;">//&nbsp;&nbsp;&nbsp;&nbsp;Click&nbsp;<b>OK</b>&nbsp;to&nbsp;close&nbsp;the&nbsp;message&nbsp;box.</span>
<span style="color:green;">//----------------------------------------------------------------</span>
 
<span style="color:blue;">using</span>&nbsp;System;
<span style="color:blue;">using</span>&nbsp;DraftSight.Interop.dsAutomation;
<span style="color:blue;">using</span>&nbsp;System.Runtime.InteropServices;
<span style="color:blue;">using</span>&nbsp;System.Windows.Forms;

<span style="color:blue;">namespace</span>&nbsp;TraceCSharp
{
&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">class</span>&nbsp;<span style="color:#2b91af;">Program</span>
&nbsp;&nbsp;&nbsp;&nbsp;{
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">static</span>&nbsp;<span style="color:blue;">void</span>&nbsp;Main()
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DraftSight.Interop.dsAutomation.<span style="color:#2b91af;">Application</span>&nbsp;dsApp;
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Connects&nbsp;to&nbsp;DraftSight&nbsp;application</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsApp&nbsp;=&nbsp;(DraftSight.Interop.dsAutomation.<span style="color:#2b91af;">Application</span>)<span style="color:#2b91af;">Marshal</span>.GetActiveObject(<span style="color:#a31515;">&quot;DraftSight.Application&quot;</span>);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">if</span>&nbsp;(<span style="color:blue;">null</span>&nbsp;==&nbsp;dsApp)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">return</span>;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Aborts&nbsp;any&nbsp;command&nbsp;currently&nbsp;running&nbsp;in&nbsp;DraftSight</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//to&nbsp;avoid&nbsp;nested&nbsp;commands</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsApp.<b>AbortRunningCommand</b>();
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Gets&nbsp;active&nbsp;document</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">Document</span>&nbsp;dsDoc&nbsp;=&nbsp;dsApp.<b>GetActiveDocument</b>();
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">if</span>&nbsp;(<span style="color:blue;">null</span>&nbsp;==&nbsp;dsDoc)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;There&nbsp;are&nbsp;no&nbsp;open&nbsp;documents&nbsp;in&nbsp;DraftSight.&quot;</span>);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">return</span>;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Gets&nbsp;Sketch&nbsp;Manager</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">SketchManager</span>&nbsp;dsSketchMgr&nbsp;=&nbsp;dsDoc.GetModel().<b>GetSketchManager</b>();
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Creates array for Trace vertex coordinates</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">double</span>[]&nbsp;CoordinatesArray&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,&nbsp;0,&nbsp;0,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5,&nbsp;5,&nbsp;0,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-1,&nbsp;10,&nbsp;0,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4,&nbsp;8,&nbsp;0
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;};
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Creates&nbsp;Trace&nbsp;</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">Trace</span>&nbsp;dsTrace&nbsp;=&nbsp;dsSketchMgr.<b>InsertTrace</b>(CoordinatesArray);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Sets&nbsp;the&nbsp;vertex&nbsp;coordinates&nbsp;of&nbsp;trace</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>SetVertex1Coordinate</b>(1.2,&nbsp;2.0,&nbsp;0.0);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>SetVertex2Coordinate</b>(1.1,&nbsp;2.3,&nbsp;0.0);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>SetVertex3Coordinate</b>(2.2,&nbsp;1.0,&nbsp;0.0);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>SetVertex4Coordinate</b>(2.2,&nbsp;3.0,&nbsp;0.0);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Sets&nbsp;Trace thickness</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>Thickness</b>&nbsp;=&nbsp;2.0;
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Gets&nbsp;Trace vertex&nbsp;coordinates</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:blue;">double</span>&nbsp;X,&nbsp;Y,&nbsp;Z;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>GetVertex1Coordinate</b>(<span style="color:blue;">out</span>&nbsp;X,&nbsp;<span style="color:blue;">out</span>&nbsp;Y,&nbsp;<span style="color:blue;">out</span>&nbsp;Z);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;GetVertex1Coordinate:&nbsp;(&quot;</span>&nbsp;+&nbsp;X&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Y&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Z&nbsp;+&nbsp;<span style="color:#a31515;">&quot;)&quot;</span>);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>GetVertex2Coordinate</b>(<span style="color:blue;">out</span>&nbsp;X,&nbsp;<span style="color:blue;">out</span>&nbsp;Y,&nbsp;<span style="color:blue;">out</span>&nbsp;Z);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;GetVertex2Coordinate:&nbsp;(&quot;</span>&nbsp;+&nbsp;X&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Y&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Z&nbsp;+&nbsp;<span style="color:#a31515;">&quot;)&quot;</span>);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>GetVertex3Coordinate</b>(<span style="color:blue;">out</span>&nbsp;X,&nbsp;<span style="color:blue;">out</span>&nbsp;Y,&nbsp;<span style="color:blue;">out</span>&nbsp;Z);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;GetVertex3Coordinate:&nbsp;(&quot;</span>&nbsp;+&nbsp;X&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Y&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Z&nbsp;+&nbsp;<span style="color:#a31515;">&quot;)&quot;</span>);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dsTrace.<b>GetVertex3Coordinate</b>(<span style="color:blue;">out</span>&nbsp;X,&nbsp;<span style="color:blue;">out</span>&nbsp;Y,&nbsp;<span style="color:blue;">out</span>&nbsp;&nbsp;Z);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;GetVertex4Coordinate:&nbsp;(&quot;</span>&nbsp;+&nbsp;X&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Y&nbsp;+&nbsp;<span style="color:#a31515;">&quot;,&nbsp;&quot;</span>&nbsp;+&nbsp;Z&nbsp;+&nbsp;<span style="color:#a31515;">&quot;)&quot;</span>);
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:green;">//Gets&nbsp;Trace&nbsp;thickness</span>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#2b91af;">MessageBox</span>.Show(<span style="color:#a31515;">&quot;Thickness:&nbsp;&quot;</span>&nbsp;+&nbsp;dsTrace.<b>Thickness</b>);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;}
}</pre>

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