91 lines
No EOL
3.2 KiB
C#
91 lines
No EOL
3.2 KiB
C#
/*
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Involute Spur Gear Builder (c) 2014 Dr. Rainer Hessmer
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ported to C# 2019 by Lars Brubaker
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System.Collections.Generic;
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using ClipperLib;
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using MatterHackers.Agg;
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using MatterHackers.Agg.Transform;
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using MatterHackers.Agg.VertexSource;
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using MatterHackers.DataConverters2D;
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using MatterHackers.VectorMath;
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public static class VertexSourceExtensions
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{
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public static IVertexSource Minus(this IVertexSource a, IVertexSource b)
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{
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return MergePaths(a, b, ClipType.ctDifference);
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}
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public static IVertexSource Plus(this IVertexSource a, IVertexSource b)
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{
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return MergePaths(a, b, ClipType.ctUnion);
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}
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public static IVertexSource RotateZDegrees(this IVertexSource a, double angle)
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{
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return new VertexSourceApplyTransform(a, Affine.NewRotation(MathHelper.DegreesToRadians(angle)));
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}
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public static IVertexSource Subtract(this IVertexSource a, IVertexSource b)
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{
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return a.Minus(b);
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}
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public static IVertexSource Translate(this IVertexSource a, Vector2 delta)
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{
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return new VertexSourceApplyTransform(a, Affine.NewTranslation(delta));
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}
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public static IVertexSource Union(this IVertexSource a, IVertexSource b)
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{
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return a.Plus(b);
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}
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public static VertexStorage MergePaths(this IVertexSource a, IVertexSource b, ClipType clipType)
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{
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List<List<IntPoint>> aPolys = a.CreatePolygons();
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List<List<IntPoint>> bPolys = b.CreatePolygons();
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var clipper = new Clipper();
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clipper.AddPaths(aPolys, PolyType.ptSubject, true);
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clipper.AddPaths(bPolys, PolyType.ptClip, true);
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var outputPolys = new List<List<IntPoint>>();
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clipper.Execute(clipType, outputPolys, PolyFillType.pftNonZero);
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Clipper.CleanPolygons(outputPolys);
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VertexStorage output = outputPolys.CreateVertexStorage();
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output.Add(0, 0, ShapePath.FlagsAndCommand.Stop);
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return output;
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}
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} |