263 lines
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<meta name="description" content="Demonstrates the creation and visualization of mechanical assemblies with kinematic linkages. Shows how to build coordinate systems, establish kinematic relationships, and capture visual output.">
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<article data-uid="Sample.Mech.DemoTopo1">
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<h1 id="Sample_Mech_DemoTopo1" data-uid="Sample.Mech.DemoTopo1" class="text-break">
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Class DemoTopo1
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</h1>
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<div class="facts text-secondary">
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<dl><dt>Namespace</dt><dd><a class="xref" href="Sample.html">Sample</a>.<a class="xref" href="Sample.Mech.html">Mech</a></dd></dl>
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<dl><dt>Assembly</dt><dd>Hi.Sample.dll</dd></dl>
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</div>
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<div class="markdown summary"><p>Demonstrates the creation and visualization of mechanical assemblies with kinematic linkages.
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Shows how to build coordinate systems, establish kinematic relationships, and capture visual output.</p>
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</div>
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<div class="markdown conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static class DemoTopo1</code></pre>
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</div>
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<dl class="typelist inheritance">
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<dt>Inheritance</dt>
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<dd>
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<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
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<div><span class="xref">DemoTopo1</span></div>
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</dd>
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</dl>
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<dt>Inherited Members</dt>
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<dd>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>
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</div>
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</dd></dl>
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<h2 id="Sample_Mech_DemoTopo1_remarks">Remarks</h2>
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<div class="markdown level0 remarks"><h3 id="source-code">Source Code</h3>
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<pre><code class="lang-csharp" name="SampleCode">using System;
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using System.Collections.Generic;
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using Hi.Disp;
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using Hi.Geom;
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using Hi.Mech.Topo;
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namespace Sample.Mech
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{
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/// <summary>
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/// Demonstrates the creation and visualization of mechanical assemblies with kinematic linkages.
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/// Shows how to build coordinate systems, establish kinematic relationships, and capture visual output.
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/// </summary>
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/// <remarks>
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/// ### Source Code
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/// [!code-csharp[SampleCode](~/../Hi.Sample/Mech/DemoTopo1.cs)]
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/// </remarks>
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public static class DemoTopo1
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{
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/// <summary>
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/// Creates a demonstration assembly with kinematic linkages.
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/// Builds a mechanical assembly with multiple anchors and branches, including both static and dynamic transformations.
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/// </summary>
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/// <returns>A tuple containing the assembly and root anchor</returns>
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static (Asmb asmb,Anchor root) GetDemoAsmb()
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{
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#region DocSite.DemoTopo1
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//build coordinate systems and the assembly.
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Asmb asmb = new Asmb { Name = "Mech" };
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Anchor O = new Anchor(asmb, "O");
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Anchor O1 = new Anchor(asmb, "O1");
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Anchor X = new Anchor(asmb, "X");
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Anchor Z = new Anchor(asmb, "Z");
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Anchor B = new Anchor(asmb, "B");
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//build kinematic link
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Branch.Attach(O, O1, new StaticTranslation(new Vec3d(0, 0, 80)));
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Branch brnX = Branch.Attach(O1, X, new DynamicTranslation(new Vec3d(1, 0, 0)));
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Branch brnZ = Branch.Attach(X, Z, new DynamicTranslation(new Vec3d(0, 0, 1)));
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Branch brnB = Branch.Attach(Z, B, new DynamicRotation(new Vec3d(0, 1, 0), 0, new Vec3d(-100, 0, 0)));
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//drive the dynamic transformation by single value for each branch.
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brnX.Step = 200;
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brnZ.Step = 100;
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brnB.Step = MathUtil.ToRad(-60);
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//Get and show the transform matrices relative to O.
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Dictionary<Anchor, Mat4d> matMap = asmb.GetMat4dMap(O);
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Console.WriteLine("Transform Matrix relative to O:");
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foreach (KeyValuePair<Anchor, Mat4d> keyValue in matMap)
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Console.WriteLine($"{keyValue.Key.Name} : {keyValue.Value}");
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#endregion
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return (asmb,O);
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}
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/// <summary>
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/// Captures the assembly visualization and saves it to a file.
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/// Initializes the display engine, sets up the assembly visualization with an isometric view, and saves a snapshot to a bitmap file.
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/// </summary>
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/// <param name="src">A tuple containing the assembly and root anchor for visualization</param>
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static void SnapshotToFile((Asmb asmb, Anchor root) src)
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{
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//all the drawing function has to call DispEngine.Init() before using.
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DispEngine.Init();
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DispEngine.EnableSuppressDefaultLogo = true;
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using (DispEngine dispEngine = new DispEngine(
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src.asmb.GetAsmbDraw(src.root)))
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{
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dispEngine.SetViewToIsometricView();
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dispEngine.Snapshot("DemoTopo1.bmp", 680, 480);
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}
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Console.WriteLine("Snapshot file output.");
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DispEngine.FinishDisp();
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}
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static void Main()
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{
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SnapshotToFile(GetDemoAsmb());
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}
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}
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}
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</code></pre></div>
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</article>
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