25791644842

Committed 13 May 2026 09:51AM UTC coverage: 76.744% (-0.02%) from 76.763%

Build # 25791644842

Build Type

Pull #1069

github

Committed by

web-flow

Commit Message

Merge 887314199 into 683107226

Pull Request Pull Request #1069: Update Hatch.BoundaryPath.Spline.cs

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35.37

/src/ACadSharp/Entities/Hatch.BoundaryPath.Spline.cs

﻿using ACadSharp.Attributes;
using CSMath;
using System;
using System.Collections.Generic;
using System.Linq;

namespace ACadSharp.Entities
{
        public partial class Hatch
        {
                public partial class BoundaryPath
                {
                        public class Spline : Edge
                        {
                                /// <remarks>
                                /// Position values are only X and Y, Z represents the weight.
                                /// </remarks>
                                [DxfCodeValue(96)]
                                //42        Weights(optional, default = 1)        ??
                                public List<XYZ> ControlPoints { get; private set; } = new List<XYZ>();

                                /// <summary>
                                /// Degree.
                                /// </summary>
                                [DxfCodeValue(94)]
                                public int Degree { get; set; }

                                /// <summary>
                                /// End tangent.
                                /// </summary>
                                [DxfCodeValue(13, 23)]
                                public XY EndTangent { get; set; }

                                /// <remarks>
                                /// Number of fit data.
                                /// </remarks>
                                [DxfCodeValue(97)]
                                public List<XY> FitPoints { get; private set; } = new List<XY>();

                                /// <summary>
                                /// Number of knots.
                                /// </summary>
                                [DxfCodeValue(95)]
                                public List<double> Knots { get; private set; } = new List<double>();

                                /// <summary>
                                /// Gets or sets a value indicating whether the spline is periodic.
                                /// </summary>
                                /// <remarks>A periodic spline forms a closed, continuous curve where the start and end points are joined
                                /// seamlessly. Setting this property to true creates a smooth, looping spline; setting it to false creates an open
                                /// spline.</remarks>
                                [DxfCodeValue(74)]
                                public bool IsPeriodic { get; set; }

                                /// <summary>
                                /// Gets or sets a value indicating whether the spline is rational.
                                /// </summary>
                                [DxfCodeValue(73)]
                                public bool IsRational { get; set; }

                                /// <summary>
                                /// Start tangent.
                                /// </summary>
                                [DxfCodeValue(12, 22)]
                                public XY StartTangent { get; set; }

                                /// <inheritdoc/>
                                public override EdgeType Type => EdgeType.Spline;

                                /// <summary>
                                /// Gets a collection of weights derived from the Z-coordinates of the control points.
                                /// </summary>
                                public IEnumerable<double> Weights { get { return this.ControlPoints.Select(c => c.Z); } }

                                /// <summary>
                                /// Initializes a new instance of the Spline class.
                                /// </summary>
                                public Spline()
                                { }

                                /// <summary>
                                /// Initializes a new instance of the Spline class using the specified spline entity.
                                /// </summary>
                                /// <param name="spline">The spline entity that provides the data for initializing this Spline instance. Cannot be null.</param>
                                public Spline(Entities.Spline spline)
                                {
                                        this.Degree = spline.Degree;
                                        this.IsRational = true;
                                        this.IsPeriodic = spline.IsClosed;
                                        if (!spline.ControlPoints.Any())
                                        {
                                                throw new ArgumentException("The HatchBoundaryPath spline edge requires a spline entity with control points.", nameof(spline));
                                        }

                                        Matrix3 trans = Matrix3.ArbitraryAxis(spline.Normal).Transpose();
                                        for (int i = 0; i < spline.ControlPoints.Count; i++)
                                        {
                                                XYZ point = trans * spline.ControlPoints[i];
                                                this.ControlPoints.Add(new XYZ(point.X, point.Y, spline.Weights[i]));
                                        }

                                        this.Knots.AddRange(spline.Knots);
                                }

                                /// <inheritdoc/>
                                public override void ApplyTransform(Transform transform)
                                {
                                        var arr = this.ControlPoints.ToArray();
                                        this.ControlPoints.Clear();
                                        for (int i = 0; i < arr.Length; i++)
                                        {
                                                var weight = arr[i].Z;
                                                var v = transform.ApplyTransform(arr[i]);
                                                v.Z = weight;

                                                this.ControlPoints.Add(v);
                                        }

                                        for (int i = 0; i < this.FitPoints.Count; i++)
                                        {
                                                this.FitPoints[i] = transform.ApplyTransform(this.FitPoints[i].Convert<XYZ>()).Convert<XY>();
                                        }
                                }

                                /// <inheritdoc/>
                                public override Edge Clone()
                                {
                                        Spline clone = (Spline)base.Clone();

                                        clone.ControlPoints = new List<XYZ>(this.ControlPoints);
                                        clone.FitPoints = new List<XY>(this.FitPoints);
                                        clone.Knots = new List<double>(this.Knots);

                                        return clone;
                                }

                                /// <inheritdoc/>
                                public override BoundingBox GetBoundingBox()
                                {
                                        return BoundingBox.FromPoints(this.ControlPoints);
                                }

                                /// <summary>
                                /// Converts the spline in a list of vertexes.
                                /// </summary>
                                /// <param name="precision">Number of vertexes generated.</param>
                                /// <returns>A list vertexes that represents the spline expressed in object coordinate system.</returns>
                                public List<XYZ> PolygonalVertexes(int precision)
                                {
                                        Entities.Spline spline = (Entities.Spline)this.ToEntity();
                                        return spline.PolygonalVertexes(precision);
                                }

                                /// <inheritdoc/>
                                public override Entity ToEntity()
                                {
                                        Entities.Spline spline = new();

                                        spline.Degree = this.Degree;
                                        spline.Flags = this.IsPeriodic ? spline.Flags |= (SplineFlags.Periodic) : spline.Flags;
                                        spline.Flags = this.IsRational ? spline.Flags |= (SplineFlags.Rational) : spline.Flags;

                                        spline.StartTangent = this.StartTangent.Convert<XYZ>();
                                        spline.EndTangent = this.EndTangent.Convert<XYZ>();

                                        spline.ControlPoints.AddRange(this.ControlPoints);
                                        spline.Weights.AddRange(this.ControlPoints.Select(x => x.Z));
                                        spline.FitPoints.AddRange(this.FitPoints.Select(x => x.Convert<XYZ>()));
                                        spline.Knots.AddRange(this.Knots);

                                        return spline;
                                }
                        }
                }
        }
}

1	using ACadSharp.Attributes;
2	using CSMath;
3	using System;
4	using System.Collections.Generic;
5	using System.Linq;
6
7	namespace ACadSharp.Entities
8	{
9	public partial class Hatch
10	{
11	public partial class BoundaryPath
12	{
13	public class Spline : Edge
14	{
15	/// <remarks>
16	/// Position values are only X and Y, Z represents the weight.
17	/// </remarks>
18	[DxfCodeValue(96)]
19	//42 Weights(optional, default = 1) ??
20	public List<XYZ> ControlPoints { get; private set; } = new List<XYZ>();	12✔
21
22	/// <summary>
23	/// Degree.
24	/// </summary>
25	[DxfCodeValue(94)]
26	public int Degree { get; set; }	2✔
27
28	/// <summary>
29	/// End tangent.
30	/// </summary>
31	[DxfCodeValue(13, 23)]
32	public XY EndTangent { get; set; }	1✔
33
34	/// <remarks>
35	/// Number of fit data.
36	/// </remarks>
37	[DxfCodeValue(97)]
38	public List<XY> FitPoints { get; private set; } = new List<XY>();	2✔
39
40	/// <summary>
41	/// Number of knots.
42	/// </summary>
43	[DxfCodeValue(95)]
44	public List<double> Knots { get; private set; } = new List<double>();	15✔
45
46	/// <summary>
47	/// Gets or sets a value indicating whether the spline is periodic.
48	/// </summary>
49	/// <remarks>A periodic spline forms a closed, continuous curve where the start and end points are joined
50	/// seamlessly. Setting this property to true creates a smooth, looping spline; setting it to false creates an open
51	/// spline.</remarks>
52	[DxfCodeValue(74)]
53	public bool IsPeriodic { get; set; }	2✔
54
55	/// <summary>
56	/// Gets or sets a value indicating whether the spline is rational.
57	/// </summary>
58	[DxfCodeValue(73)]
59	public bool IsRational { get; set; }	11✔
60
61	/// <summary>
62	/// Start tangent.
63	/// </summary>
64	[DxfCodeValue(12, 22)]
65	public XY StartTangent { get; set; }	1✔
66
67	/// <inheritdoc/>
68	public override EdgeType Type => EdgeType.Spline;	×
69
70	/// <summary>
71	/// Gets a collection of weights derived from the Z-coordinates of the control points.
72	/// </summary>
73	public IEnumerable<double> Weights { get { return this.ControlPoints.Select(c => c.Z); } }	×
74
75	/// <summary>
76	/// Initializes a new instance of the Spline class.
77	/// </summary>
78	public Spline()	1✔
79	{ }	2✔
80
81	/// <summary>
82	/// Initializes a new instance of the Spline class using the specified spline entity.
83	/// </summary>
84	/// <param name="spline">The spline entity that provides the data for initializing this Spline instance. Cannot be null.</param>
85	public Spline(Entities.Spline spline)	×
86	{	×
87	this.Degree = spline.Degree;	×
88	this.IsRational = true;	×
89	this.IsPeriodic = spline.IsClosed;	×
90	if (!spline.ControlPoints.Any())	×
91	{	×
92	throw new ArgumentException("The HatchBoundaryPath spline edge requires a spline entity with control points.", nameof(spline));	×
93	}
94
95	Matrix3 trans = Matrix3.ArbitraryAxis(spline.Normal).Transpose();	×
96	for (int i = 0; i < spline.ControlPoints.Count; i++)	×
97	{	×
98	XYZ point = trans * spline.ControlPoints[i];	×
NEW 99	this.ControlPoints.Add(new XYZ(point.X, point.Y, spline.Weights[i]));	×
100	}	×
101
102	this.Knots.AddRange(spline.Knots);	×
103	}	×
104
105	/// <inheritdoc/>
106	public override void ApplyTransform(Transform transform)
107	{	×
108	var arr = this.ControlPoints.ToArray();	×
109	this.ControlPoints.Clear();	×
110	for (int i = 0; i < arr.Length; i++)	×
111	{	×
112	var weight = arr[i].Z;	×
113	var v = transform.ApplyTransform(arr[i]);	×
114	v.Z = weight;	×
115
116	this.ControlPoints.Add(v);	×
117	}	×
118
119	for (int i = 0; i < this.FitPoints.Count; i++)	×
120	{	×
121	this.FitPoints[i] = transform.ApplyTransform(this.FitPoints[i].Convert<XYZ>()).Convert<XY>();	×
122	}	×
123	}	×
124
125	/// <inheritdoc/>
126	public override Edge Clone()
127	{	×
128	Spline clone = (Spline)base.Clone();	×
129
130	clone.ControlPoints = new List<XYZ>(this.ControlPoints);	×
131	clone.FitPoints = new List<XY>(this.FitPoints);	×
132	clone.Knots = new List<double>(this.Knots);	×
133
134	return clone;	×
135	}	×
136
137	/// <inheritdoc/>
138	public override BoundingBox GetBoundingBox()
139	{	×
140	return BoundingBox.FromPoints(this.ControlPoints);	×
141	}	×
142
143	/// <summary>
144	/// Converts the spline in a list of vertexes.
145	/// </summary>
146	/// <param name="precision">Number of vertexes generated.</param>
147	/// <returns>A list vertexes that represents the spline expressed in object coordinate system.</returns>
148	public List<XYZ> PolygonalVertexes(int precision)
149	{	1✔
150	Entities.Spline spline = (Entities.Spline)this.ToEntity();	1✔
151	return spline.PolygonalVertexes(precision);	1✔
152	}	1✔
153
154	/// <inheritdoc/>
155	public override Entity ToEntity()
156	{	1✔
157	Entities.Spline spline = new();	1✔
158
159	spline.Degree = this.Degree;	1✔
160	spline.Flags = this.IsPeriodic ? spline.Flags \|= (SplineFlags.Periodic) : spline.Flags;	1!
161	spline.Flags = this.IsRational ? spline.Flags \|= (SplineFlags.Rational) : spline.Flags;	1!
162
163	spline.StartTangent = this.StartTangent.Convert<XYZ>();	1✔
164	spline.EndTangent = this.EndTangent.Convert<XYZ>();	1✔
165
166	spline.ControlPoints.AddRange(this.ControlPoints);	1✔
167	spline.Weights.AddRange(this.ControlPoints.Select(x => x.Z));	10✔
168	spline.FitPoints.AddRange(this.FitPoints.Select(x => x.Convert<XYZ>()));	1✔
169	spline.Knots.AddRange(this.Knots);	1✔
170
171	return spline;	1✔
172	}	1✔
173	}
174	}
175	}
176	}

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