mattercontrol/MatterControlLib/DesignTools/Operations/CurveObject3D_2.cs

/*
Copyright (c) 2018, Lars Brubaker, John Lewin
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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*/

using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MatterHackers.Agg;
using MatterHackers.Agg.UI;
using MatterHackers.DataConverters3D;
using MatterHackers.Localizations;
using MatterHackers.MatterControl.DesignTools.Operations;
using MatterHackers.MatterControl.PartPreviewWindow;
using MatterHackers.MeshVisualizer;
using MatterHackers.PolygonMesh;
using MatterHackers.RenderOpenGl.OpenGl;
using MatterHackers.VectorMath;

namespace MatterHackers.MatterControl.DesignTools
{
	public class CurveObject3D_2 : OperationSourceContainerObject3D, IEditorDraw
	{
		// this needs to serialize but not be editable
		public Vector3 rotationOffset;

		public CurveObject3D_2()
		{
			Name = "Curve".Localize();
		}

		[DisplayName("Bend Up")]
		public bool BendCcw { get; set; } = true;

		public double Diameter { get; set; } = double.MinValue;

		[Range(3, 360, ErrorMessage = "Value for {0} must be between {1} and {2}.")]
		[Description("Ensures the rotated part has a minimum number of sides per complete rotation")]
		public double MinSidesPerRotation { get; set; } = 3;

		[Range(0, 100, ErrorMessage = "Value for {0} must be between {1} and {2}.")]
		[Description("Where to start the bend as a percent of the width of the part")]
		public double StartPercent { get; set; } = 50;

		public void DrawEditor(object sender, DrawEventArgs e)
		{
			if (sender is InteractionLayer layer
				&& layer.Scene.SelectedItem != null
				&& layer.Scene.SelectedItem.DescendantsAndSelf().Where((i) => i == this).Any())
			{
				// we want to measure the
				var currentMatrixInv = Matrix.Inverted;
				var aabb = this.GetAxisAlignedBoundingBox(currentMatrixInv);

				layer.World.RenderCylinderOutline(this.WorldMatrix(), Vector3.Zero, Diameter, aabb.ZSize, 30, Color.Red);
			}

			// turn the lighting back on
			GL.Enable(EnableCap.Lighting);
		}

		public override Task Rebuild()
		{
			this.DebugDepth("Rebuild");

			bool propertyUpdated = Diameter == double.MinValue;
			if (StartPercent < 0
				|| StartPercent > 100)
			{
				StartPercent = Math.Min(100, Math.Max(0, StartPercent));
				propertyUpdated = true;
			}

			var rebuildLocks = this.RebuilLockAll();

			return ApplicationController.Instance.Tasks.Execute(
				"Curve".Localize(),
				null,
				(reporter, cancellationToken) =>
				{
					this.Translate(-rotationOffset);
					SourceContainer.Visible = true;
					RemoveAllButSource();

					// remember the current matrix then clear it so the parts will rotate at the original wrapped position
					var currentMatrix = Matrix;
					Matrix = Matrix4X4.Identity;

					var aabb = SourceContainer.GetAxisAlignedBoundingBox();

					if (Diameter == double.MinValue)
					{
						// uninitialized set to a reasonable value
						Diameter = (int)aabb.XSize;
						// TODO: ensure that the editor display value is updated
					}

					if (Diameter > 0)
					{
						var radius = Diameter / 2;
						var circumference = MathHelper.Tau * radius;
						var rotationCenter = new Vector3(aabb.MinXYZ.X + (aabb.MaxXYZ.X - aabb.MinXYZ.X) * (StartPercent / 100), aabb.MaxXYZ.Y + radius, aabb.Center.Z);

						rotationOffset = rotationCenter;
						if (!BendCcw)
						{
							// fix the stored center so we draw correctly
							rotationOffset.Y = aabb.MinXYZ.Y - radius;
						}

						foreach (var sourceItem in SourceContainer.VisibleMeshes())
						{
							var originalMesh = sourceItem.Mesh;
							var transformedMesh = originalMesh.Copy(CancellationToken.None);
							var itemMatrix = sourceItem.WorldMatrix(SourceContainer);

							if (!BendCcw)
							{
								// rotate around so it will bend correctly
								itemMatrix *= Matrix4X4.CreateTranslation(0, -aabb.MaxXYZ.Y, 0);
								itemMatrix *= Matrix4X4.CreateRotationX(MathHelper.Tau / 2);
								itemMatrix *= Matrix4X4.CreateTranslation(0, aabb.MaxXYZ.Y - aabb.YSize, 0);
							}

							var invItemMatrix = itemMatrix.Inverted;

							for (int i = 0; i < transformedMesh.Vertices.Count; i++)
							{
								var worldPosition = transformedMesh.Vertices[i].Transform((Matrix4X4)itemMatrix);

								var angleToRotate = ((worldPosition.X - rotationCenter.X) / circumference) * MathHelper.Tau - MathHelper.Tau / 4;
								var distanceFromCenter = rotationCenter.Y - worldPosition.Y;

								var rotatePosition = new Vector3Float(Math.Cos(angleToRotate), Math.Sin(angleToRotate), 0) * distanceFromCenter;
								rotatePosition.Z = worldPosition.Z;
								var worldWithBend = rotatePosition + new Vector3Float(rotationCenter.X, radius + aabb.MaxXYZ.Y, 0);

								transformedMesh.Vertices[i] = worldWithBend.Transform(invItemMatrix) - new Vector3Float(rotationOffset);
							}

							transformedMesh.MarkAsChanged();
							transformedMesh.CalculateNormals();

							var newMesh = new Object3D()
							{
								Mesh = transformedMesh
							};
							newMesh.CopyWorldProperties(sourceItem, this, Object3DPropertyFlags.All);
							this.Children.Add(newMesh);
						}
					}

					// set the matrix back
					Matrix = currentMatrix;
					this.Translate(new Vector3(rotationOffset));
					SourceContainer.Visible = false;
					rebuildLocks.Dispose();
					base.OnInvalidate(new InvalidateArgs(this, InvalidateType.Children));
					return Task.CompletedTask;
				});
		}
	}
}