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feat: Initial commit

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PopSlime
2025-02-14 16:06:00 +08:00
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Primary Contributors:
Mason Green <mason.green@gmail.com> (C++, Python)
Thomas Åhlén <thahlen@gmail.com> (Java)
Other Contributors:
Michael Rickert (C#)
Lee Wilson <devnull@devnullsoftware.com> (C#)

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Poly2Tri Copyright (c) 2009-2011, Poly2Tri Contributors
http://code.google.com/p/poly2tri/
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* 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.
* Neither the name of Poly2Tri nor the names of its contributors may be
used to endorse or promote products derived from this software without specific
prior written permission.
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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
The Following notice applies to the Methods SplitComplexPolygon and the
class SplitComplexPolygonNode in Triangulation/Polygon/PolygonUtil.cs.
Both are altered only enough to convert to C#
and take advantage of some of C#'s language features. Any errors
are thus mine from the conversion and not Eric's.
Copyright (c) 2007 Eric Jordan
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
------------------------------------------------------------------------------
Portions of the this code (notably: the methods PolygonUnion,
PolygonSubtract, PolygonIntersect, PolygonOperationContext.Init,
PolygonOperationContext.VerticesIntersect,
PolygonOperationContext.PointInPolygonAngle, and
PolygonOperationContext.VectorAngle in the file
Triangulation/Polygon/PolygonUtil.cs are from the Farseer Physics Engine 3.0
and are covered under the Microsoft Permissive License V1.1
(http://farseerphysics.codeplex.com/license)
Microsoft Permissive License (Ms-PL)
This license governs use of the accompanying software. If you use the
software, you accept this license. If you do not accept the license, do not
use the software.
1. Definitions
The terms "reproduce," "reproduction," "derivative works," and
"distribution" have the same meaning here as under U.S. copyright law.
A "contribution" is the original software, or any additions or changes to
the software.
A "contributor" is any person that distributes its contribution under this
license.
"Licensed patents" are a contributor's patent claims that read directly on
its contribution.
2. Grant of Rights
(A) Copyright Grant- Subject to the terms of this license, including the
license conditions and limitations in section 3, each contributor grants
you a non-exclusive, worldwide, royalty-free copyright license to reproduce
its contribution, prepare derivative works of its contribution, and
distribute its contribution or any derivative works that you create.
(B) Patent Grant- Subject to the terms of this license, including the
license conditions and limitations in section 3, each contributor grants
you a non-exclusive, worldwide, royalty-free license under its licensed
patents to make, have made, use, sell, offer for sale, import, and/or
otherwise dispose of its contribution in the software or derivative works
of the contribution in the software.
3. Conditions and Limitations
(A) No Trademark License- This license does not grant you rights to use
any contributors' name, logo, or trademarks.
(B) If you bring a patent claim against any contributor over patents that
you claim are infringed by the software, your patent license from such
contributor to the software ends automatically.
(C) If you distribute any portion of the software, you must retain all
copyright, patent, trademark, and attribution notices that are present
in the software.
(D) If you distribute any portion of the software in source code form, you
may do so only under this license by including a complete copy of this
license with your distribution. If you distribute any portion of the
software in compiled or object code form, you may only do so under a
license that complies with this license.
(E) The software is licensed "as-is." You bear the risk of using it. The
contributors give no express warranties, guarantees or conditions. You may
have additional consumer rights under your local laws which this license
cannot change. To the extent permitted under your local laws, the
contributors exclude the implied warranties of merchantability, fitness for
a particular purpose and non-infringement.

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/// Changes from the Java version
/// Removed BST code, but not all artifacts of it
/// Future possibilities
/// Eliminate Add/RemoveNode ?
/// Comments comments and more comments!
using System.Text;
using System;
namespace Poly2Tri
{
/**
* @author Thomas Åhlen (thahlen@gmail.com)
*/
public class AdvancingFront
{
public AdvancingFrontNode Head;
public AdvancingFrontNode Tail;
protected AdvancingFrontNode Search;
public AdvancingFront(AdvancingFrontNode head, AdvancingFrontNode tail)
{
this.Head = head;
this.Tail = tail;
this.Search = head;
AddNode(head);
AddNode(tail);
}
public void AddNode(AdvancingFrontNode node) { }
public void RemoveNode(AdvancingFrontNode node) { }
public override string ToString()
{
StringBuilder sb = new StringBuilder();
AdvancingFrontNode node = Head;
while (node != Tail)
{
sb.Append(node.Point.X).Append("->");
node = node.Next;
}
sb.Append(Tail.Point.X);
return sb.ToString();
}
/// <summary>
/// MM: This seems to be used by LocateNode to guess a position in the implicit linked list of AdvancingFrontNodes near x
/// Removed an overload that depended on this being exact
/// </summary>
private AdvancingFrontNode FindSearchNode(double x)
{
return Search;
}
/// <summary>
/// We use a balancing tree to locate a node smaller or equal to given key value (in theory)
/// </summary>
public AdvancingFrontNode LocateNode(TriangulationPoint point)
{
return LocateNode(point.X);
}
private AdvancingFrontNode LocateNode(double x)
{
AdvancingFrontNode node = FindSearchNode(x);
if (x < node.Value)
{
while ((node = node.Prev) != null)
{
if (x >= node.Value)
{
Search = node;
return node;
}
}
}
else
{
while ((node = node.Next) != null)
{
if (x < node.Value)
{
Search = node.Prev;
return node.Prev;
}
}
}
return null;
}
/// <summary>
/// This implementation will use simple node traversal algorithm to find a point on the front
/// </summary>
public AdvancingFrontNode LocatePoint(TriangulationPoint point)
{
double px = point.X;
AdvancingFrontNode node = FindSearchNode(px);
double nx = node.Point.X;
if (px == nx)
{
if (point != node.Point)
{
// We might have two nodes with same x value for a short time
if (point == node.Prev.Point)
{
node = node.Prev;
}
else if (point == node.Next.Point)
{
node = node.Next;
}
else
{
throw new Exception("Failed to find Node for given afront point");
}
}
}
else if (px < nx)
{
while ((node = node.Prev) != null)
{
if (point == node.Point)
{
break;
}
}
}
else
{
while ((node = node.Next) != null)
{
if (point == node.Point)
{
break;
}
}
}
Search = node;
return node;
}
}
}

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/// Changes from the Java version
/// Removed getters
/// Has* turned into attributes
/// Future possibilities
/// Comments!
namespace Poly2Tri
{
public class AdvancingFrontNode
{
public AdvancingFrontNode Next;
public AdvancingFrontNode Prev;
public double Value;
public TriangulationPoint Point;
public DelaunayTriangle Triangle;
public AdvancingFrontNode(TriangulationPoint point)
{
this.Point = point;
Value = point.X;
}
public bool HasNext { get { return Next != null; } }
public bool HasPrev { get { return Prev != null; } }
}
}

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Poly2Tri
{
public class DTSweepBasin
{
public AdvancingFrontNode leftNode;
public AdvancingFrontNode bottomNode;
public AdvancingFrontNode rightNode;
public double width;
public bool leftHighest;
}
}

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
//using System.Collections.Generic;
using System.Diagnostics;
//using System.Linq;
namespace Poly2Tri
{
public class DTSweepConstraint : TriangulationConstraint
{
/// <summary>
/// Give two points in any order. Will always be ordered so
/// that q.y > p.y and q.x > p.x if same y value
/// </summary>
public DTSweepConstraint(TriangulationPoint p1, TriangulationPoint p2)
: base(p1, p2)
{
Q.AddEdge(this);
}
}
}

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Poly2Tri
{
/**
*
* @author Thomas Åhlén, thahlen@gmail.com
*
*/
public class DTSweepContext : TriangulationContext
{
// Inital triangle factor, seed triangle will extend 30% of
// PointSet width to both left and right.
private readonly float ALPHA = 0.3f;
public AdvancingFront Front;
public TriangulationPoint Head { get; set; }
public TriangulationPoint Tail { get; set; }
public DTSweepBasin Basin = new DTSweepBasin();
public DTSweepEdgeEvent EdgeEvent = new DTSweepEdgeEvent();
private DTSweepPointComparator _comparator = new DTSweepPointComparator();
public override TriangulationAlgorithm Algorithm { get { return TriangulationAlgorithm.DTSweep; } }
public DTSweepContext()
{
Clear();
}
public override bool IsDebugEnabled
{
get
{
return base.IsDebugEnabled;
}
protected set
{
if (value && DebugContext == null)
{
DebugContext = new DTSweepDebugContext(this);
}
base.IsDebugEnabled = value;
}
}
public void RemoveFromList(DelaunayTriangle triangle)
{
Triangles.Remove(triangle);
// TODO: remove all neighbor pointers to this triangle
// for( int i=0; i<3; i++ )
// {
// if( triangle.neighbors[i] != null )
// {
// triangle.neighbors[i].clearNeighbor( triangle );
// }
// }
// triangle.clearNeighbors();
}
public void MeshClean(DelaunayTriangle triangle)
{
MeshCleanReq(triangle);
}
private void MeshCleanReq(DelaunayTriangle triangle)
{
if (triangle != null && !triangle.IsInterior)
{
triangle.IsInterior = true;
Triangulatable.AddTriangle(triangle);
for (int i = 0; i < 3; i++)
{
if (!triangle.EdgeIsConstrained[i])
{
MeshCleanReq(triangle.Neighbors[i]);
}
}
}
}
public override void Clear()
{
base.Clear();
Triangles.Clear();
}
public void AddNode(AdvancingFrontNode node)
{
// Console.WriteLine( "add:" + node.key + ":" + System.identityHashCode(node.key));
// m_nodeTree.put( node.getKey(), node );
Front.AddNode(node);
}
public void RemoveNode(AdvancingFrontNode node)
{
// Console.WriteLine( "remove:" + node.key + ":" + System.identityHashCode(node.key));
// m_nodeTree.delete( node.getKey() );
Front.RemoveNode(node);
}
public AdvancingFrontNode LocateNode(TriangulationPoint point)
{
return Front.LocateNode(point);
}
public void CreateAdvancingFront()
{
AdvancingFrontNode head, tail, middle;
// Initial triangle
DelaunayTriangle iTriangle = new DelaunayTriangle(Points[0], Tail, Head);
Triangles.Add(iTriangle);
head = new AdvancingFrontNode(iTriangle.Points[1]);
head.Triangle = iTriangle;
middle = new AdvancingFrontNode(iTriangle.Points[0]);
middle.Triangle = iTriangle;
tail = new AdvancingFrontNode(iTriangle.Points[2]);
Front = new AdvancingFront(head, tail);
Front.AddNode(middle);
// TODO: I think it would be more intuitive if head is middles next and not previous
// so swap head and tail
Front.Head.Next = middle;
middle.Next = Front.Tail;
middle.Prev = Front.Head;
Front.Tail.Prev = middle;
}
/// <summary>
/// Try to map a node to all sides of this triangle that don't have
/// a neighbor.
/// </summary>
public void MapTriangleToNodes(DelaunayTriangle t)
{
for (int i = 0; i < 3; i++)
{
if (t.Neighbors[i] == null)
{
AdvancingFrontNode n = Front.LocatePoint(t.PointCWFrom(t.Points[i]));
if (n != null)
{
n.Triangle = t;
}
}
}
}
public override void PrepareTriangulation(ITriangulatable t)
{
base.PrepareTriangulation(t);
double xmax, xmin;
double ymax, ymin;
xmax = xmin = Points[0].X;
ymax = ymin = Points[0].Y;
// Calculate bounds. Should be combined with the sorting
foreach (TriangulationPoint p in Points)
{
if (p.X > xmax)
{
xmax = p.X;
}
if (p.X < xmin)
{
xmin = p.X;
}
if (p.Y > ymax)
{
ymax = p.Y;
}
if (p.Y < ymin)
{
ymin = p.Y;
}
}
double deltaX = ALPHA * (xmax - xmin);
double deltaY = ALPHA * (ymax - ymin);
TriangulationPoint p1 = new TriangulationPoint(xmax + deltaX, ymin - deltaY);
TriangulationPoint p2 = new TriangulationPoint(xmin - deltaX, ymin - deltaY);
Head = p1;
Tail = p2;
// long time = System.nanoTime();
// Sort the points along y-axis
Points.Sort(_comparator);
// logger.info( "Triangulation setup [{}ms]", ( System.nanoTime() - time ) / 1e6 );
}
public void FinalizeTriangulation()
{
Triangulatable.AddTriangles(Triangles);
Triangles.Clear();
}
public override TriangulationConstraint NewConstraint(TriangulationPoint a, TriangulationPoint b)
{
return new DTSweepConstraint(a, b);
}
}
}

11
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65
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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Poly2Tri
{
public class DTSweepDebugContext : TriangulationDebugContext
{
/*
* Fields used for visual representation of current triangulation
*/
public DelaunayTriangle PrimaryTriangle { get { return _primaryTriangle; } set { _primaryTriangle = value; _tcx.Update("set PrimaryTriangle"); } }
public DelaunayTriangle SecondaryTriangle { get { return _secondaryTriangle; } set { _secondaryTriangle = value; _tcx.Update("set SecondaryTriangle"); } }
public TriangulationPoint ActivePoint { get { return _activePoint; } set { _activePoint = value; _tcx.Update("set ActivePoint"); } }
public AdvancingFrontNode ActiveNode { get { return _activeNode; } set { _activeNode = value; _tcx.Update("set ActiveNode"); } }
public DTSweepConstraint ActiveConstraint { get { return _activeConstraint; } set { _activeConstraint = value; _tcx.Update("set ActiveConstraint"); } }
public DTSweepDebugContext(DTSweepContext tcx) : base(tcx) { }
public bool IsDebugContext { get { return true; } }
public override void Clear()
{
PrimaryTriangle = null;
SecondaryTriangle = null;
ActivePoint = null;
ActiveNode = null;
ActiveConstraint = null;
}
private DelaunayTriangle _primaryTriangle;
private DelaunayTriangle _secondaryTriangle;
private TriangulationPoint _activePoint;
private AdvancingFrontNode _activeNode;
private DTSweepConstraint _activeConstraint;
}
}

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Assets/Plugins/Poly2Tri/Triangulation/Delaunay/Sweep/DTSweepEdgeEvent.cs Normal file
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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/// Changes from the Java version
/// Turned DTSweepEdgeEvent into a value type
namespace Poly2Tri
{
public class DTSweepEdgeEvent
{
public DTSweepConstraint ConstrainedEdge;
public bool Right;
}
}

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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System.Collections.Generic;
namespace Poly2Tri
{
public class DTSweepPointComparator : IComparer<TriangulationPoint>
{
public int Compare(TriangulationPoint p1, TriangulationPoint p2)
{
if (p1.Y < p2.Y)
{
return -1;
}
else if (p1.Y > p2.Y)
{
return 1;
}
else
{
if (p1.X < p2.X)
{
return -1;
}
else if (p1.X > p2.X)
{
return 1;
}
else
{
return 0;
}
}
}
}
}

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48
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/* Poly2Tri
* Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
namespace Poly2Tri
{
public class PointOnEdgeException : NotImplementedException
{
public readonly TriangulationPoint A, B, C;
public PointOnEdgeException(string message, TriangulationPoint a, TriangulationPoint b, TriangulationPoint c)
: base(message)
{
A = a;
B = b;
C = c;
}
}
}

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