56 lines
1.6 KiB
C#
56 lines
1.6 KiB
C#
using Hi.Geom;
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using Hi.Disp;
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namespace Sample.Disp
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{
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/// <summary>
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/// Demonstrates a simple solar system animation using <see cref="IDisplayee"/> interface.
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/// Shows how to create a hierarchical transform structure with sun, earth and moon using
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/// <see cref="Mat4d"/> matrices and model matrix stack transformations.
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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.Wpf/Disp/DemoSatellite.cs)]
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/// </remarks>
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public class DemoSatellite : IDisplayee
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{
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Drawing sun;
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Drawing earth;
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Drawing moon;
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double angle_earth;
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double angle_moon;
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DemoSatellite()
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{
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sun = Box3d.CenterUnitBox.ScaleFromCenter(4).ToDraw_Face();
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earth = Box3d.CenterUnitBox.ScaleFromCenter(2).ToDraw_Face();
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moon = Box3d.CenterUnitBox.ToDraw_Face();
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}
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/// <inheritdoc/>
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public void Display(Bind bind)
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{
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sun.Display(bind);
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bind.ModelMatStack.Push();
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bind.ModelMatStack.Mul(new Mat4d(new AxisAngle4d(new Vec3d(0, 0, 1), angle_earth += 0.03)));
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bind.ModelMatStack.Mul(new Mat4d(new Vec3d(12, 0, 0)));
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earth.Display(bind);
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bind.ModelMatStack.Push();
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bind.ModelMatStack.Mul(new Mat4d(new AxisAngle4d(new Vec3d(0, 0, 1), angle_moon += 0.02)));
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bind.ModelMatStack.Mul(new Mat4d(new Vec3d(4, 0, 0)));
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moon.Display(bind);
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bind.ModelMatStack.Pop();
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bind.ModelMatStack.Pop();
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}
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/// <inheritdoc/>
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public void ExpandToBox3d(Box3d dst)
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{
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dst.Expand(new Vec3d(-14, -14, -2));
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dst.Expand(new Vec3d(14, 14, 2));
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}
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static void Main()
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{
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DemoUtil.RunApplication("DemoSatellite", new DemoSatellite());
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}
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}
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}
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