18346055955

Committed 08 Oct 2025 01:19PM UTC coverage: 78.364% (+0.4%) from 77.952%

Build # 18346055955

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push

github

Committed by

web-flow

Commit Message

Merge pull request #774 from DomCR/svg-hatch

patterns def

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6854 of 9493 branches covered (72.2%)

Branch coverage included in aggregate %.

191 of 211 new or added lines in 9 files covered. (90.52%)

9 existing lines in 2 files now uncovered.

26384 of 32922 relevant lines covered (80.14%)

108865.14 hits per line

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93.48

/src/ACadSharp/Entities/HatchPattern.cs

﻿using ACadSharp.Attributes;
using CSMath;
using CSUtilities.Extensions;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;

namespace ACadSharp.Entities
{
        public partial class HatchPattern
        {
                public static HatchPattern Solid { get { return new HatchPattern("SOLID"); } }

                /// <summary>
                /// Description for this pattern.
                /// </summary>
                /// <remarks>
                /// The description is not saved in dxf or dwg files, its only used in the .pat files.
                /// </remarks>
                public string Description { get; set; }

                /// <summary>
                /// Gets or sets the collection of <see cref="Line"/> objects.
                /// </summary>
                /// <remarks>This property allows adding, removing, or modifying the lines in the collection. Changes to this
                /// collection directly affect the associated context.</remarks>
                [DxfCodeValue(DxfReferenceType.Count, 79)]
                public List<Line> Lines { get; set; } = new List<Line>();

                /// <summary>
                /// Name for this pattern.
                /// </summary>
                [DxfCodeValue(2)]
                public string Name { get; set; }

                /// <summary>
                /// Default constructor of a hatch pattern.
                /// </summary>
                /// <param name="name"></param>
                public HatchPattern(string name)
                {
                        this.Name = name;
                }

                /// <summary>
                /// Load a collection of patterns from a .pat file.
                /// </summary>
                /// <param name="path"></param>
                /// <returns></returns>
                public static IEnumerable<HatchPattern> LoadFrom(string path)
                {
                        List<HatchPattern> patterns = new List<HatchPattern>();
                        HatchPattern current = null;

                        var lines = File.ReadLines(path)
                                .Select(line => line.Trim())
                                .Where(line => !string.IsNullOrWhiteSpace(line) && !line.StartsWith(";"))
                                .ToQueue();

                        List<int> leadingIndices = lines.Select((line, i) => (line, i))
                                .Where(t => t.line.StartsWith("*"))
                                .Select(t => t.i)
                                .OrderBy(i => i).ToList();

                        leadingIndices.Add(lines.Count);

                        while (lines.TryDequeue(out string line))
                        {
                                if (line.StartsWith("*"))
                                {
                                        int index = line.IndexOf(',');
                                        string noPrefix = line.Remove(0, 1);
                                        current = new HatchPattern(noPrefix.Substring(0, index - 1));
                                        current.Description = new string(noPrefix.Skip(index).ToArray()).Trim();

                                        patterns.Add(current);
                                }
                                else
                                {
                                        //;angle, x, y, shift, offset, [dash, space, ...]
                                        string[] data = line.Split(',');
                                        Line l = new Line();
                                        //angle
                                        l.Angle = MathHelper.DegToRad(double.Parse(data[0], CultureInfo.InvariantCulture));
                                        //x, y
                                        l.BasePoint = new XY(double.Parse(data[1], CultureInfo.InvariantCulture), double.Parse(data[2], CultureInfo.InvariantCulture));

                                        double shift = double.Parse(data[3], CultureInfo.InvariantCulture);
                                        double offset = double.Parse(data[4], CultureInfo.InvariantCulture);
                                        XY dir = new XY(shift, offset);
                                        double cos = Math.Cos(l.Angle);
                                        double sin = Math.Sin(l.Angle);
                                        l.Offset = new XY(dir.X * cos - dir.Y * sin, dir.X * sin + dir.Y * cos);

                                        IEnumerable<string> dashes = data.Skip(5);
                                        if (dashes.Any())
                                        {
                                                l.DashLengths.AddRange(dashes.Select(d => double.Parse(d, CultureInfo.InvariantCulture)));
                                        }

                                        current.Lines.Add(l);
                                }
                        }

                        return patterns;
                }

                /// <summary>
                /// Write a pattern or a collection of patterns into a .pat file.
                /// </summary>
                /// <param name="filename"></param>
                /// <param name="patterns"></param>
                public static void SavePatterns(string filename, params HatchPattern[] patterns)
                {
                        using StreamWriter writer = File.CreateText(filename);

                        foreach (HatchPattern p in patterns)
                        {
                                writer.Write($"*{p.Name}");

                                if (!p.Description.IsNullOrEmpty())
                                {
                                        writer.Write($",{p.Description}");
                                }

                                writer.WriteLine();

                                foreach (Line line in p.Lines)
                                {
                                        StringBuilder sb = new StringBuilder();

                                        double angle = MathHelper.DegToRad(line.Angle);
                                        double cos = Math.Cos(0.0 - line.Angle);
                                        double sin = Math.Sin(0.0 - line.Angle);

                                        var v = new XY(line.Offset.X * cos - line.Offset.Y * sin, line.Offset.X * sin + line.Offset.Y * cos);

                                        sb.Append(angle.ToString(CultureInfo.InvariantCulture));
                                        sb.Append(",");
                                        sb.Append(line.BasePoint.ToString(CultureInfo.InvariantCulture));
                                        sb.Append(",");
                                        sb.Append(v.ToString(CultureInfo.InvariantCulture));

                                        if (line.DashLengths.Count > 0)
                                        {
                                                sb.Append(",");
                                                sb.Append(line.DashLengths[0].ToString(CultureInfo.InvariantCulture));
                                                for (int i = 1; i < line.DashLengths.Count; i++)
                                                {
                                                        sb.Append(",");
                                                        sb.Append(line.DashLengths[i].ToString(CultureInfo.InvariantCulture));
                                                }
                                        }

                                        writer.WriteLine(sb.ToString());
                                }
                        }
                }

                /// <summary>
                /// Clones the current pattern.
                /// </summary>
                /// <returns></returns>
                public HatchPattern Clone()
                {
                        HatchPattern clone = (HatchPattern)this.MemberwiseClone();

                        clone.Lines = new List<Line>();
                        foreach (var item in this.Lines)
                        {
                                clone.Lines.Add(item.Clone());
                        }

                        return clone;
                }

                /// <inheritdoc/>
                public override string ToString()
                {
                        return $"{this.Name}";
                }

                /// <summary>
                /// Update the pattern geometry with a translation, rotation and scale.
                /// </summary>
                /// <param name="translation"></param>
                /// <param name="rotation"></param>
                /// <param name="scale"></param>
                public void Update(XY translation, double rotation, double scale)
                {
                        var tr = Transform.CreateTranslation(translation.Convert<XYZ>());
                        var sc = Transform.CreateScaling(new XYZ(scale));
                        var rot = Transform.CreateRotation(XYZ.AxisZ, rotation);

                        var transform = new Transform(tr.Matrix * sc.Matrix * rot.Matrix);

                        foreach (var line in Lines)
                        {
                                line.Angle += rotation;
                                line.BasePoint = transform.ApplyTransform(line.BasePoint.Convert<XYZ>()).Convert<XY>();
                                line.Offset = transform.ApplyTransform(line.Offset.Convert<XYZ>()).Convert<XY>();
                                line.DashLengths = line.DashLengths.Select(d => d * scale).ToList();
                        }
                }
        }
}

1	using ACadSharp.Attributes;
2	using CSMath;
3	using CSUtilities.Extensions;
4	using System;
5	using System.Collections.Generic;
6	using System.Globalization;
7	using System.IO;
8	using System.Linq;
9	using System.Text;
10
11	namespace ACadSharp.Entities
12	{
13	public partial class HatchPattern
14	{
15	public static HatchPattern Solid { get { return new HatchPattern("SOLID"); } }	8,877✔
16
17	/// <summary>
18	/// Description for this pattern.
19	/// </summary>
20	/// <remarks>
21	/// The description is not saved in dxf or dwg files, its only used in the .pat files.
22	/// </remarks>
23	public string Description { get; set; }	87✔
24
25	/// <summary>
26	/// Gets or sets the collection of <see cref="Line"/> objects.
27	/// </summary>
28	/// <remarks>This property allows adding, removing, or modifying the lines in the collection. Changes to this
29	/// collection directly affect the associated context.</remarks>
30	[DxfCodeValue(DxfReferenceType.Count, 79)]
31	public List<Line> Lines { get; set; } = new List<Line>();	205,015✔
32
33	/// <summary>
34	/// Name for this pattern.
35	/// </summary>
36	[DxfCodeValue(2)]
37	public string Name { get; set; }	8,182✔
38
39	/// <summary>
40	/// Default constructor of a hatch pattern.
41	/// </summary>
42	/// <param name="name"></param>
43	public HatchPattern(string name)	4,123✔
44	{	4,123✔
45	this.Name = name;	4,123✔
46	}	4,123✔
47
48	/// <summary>
49	/// Load a collection of patterns from a .pat file.
50	/// </summary>
51	/// <param name="path"></param>
52	/// <returns></returns>
53	public static IEnumerable<HatchPattern> LoadFrom(string path)
54	{	24✔
55	List<HatchPattern> patterns = new List<HatchPattern>();	24✔
56	HatchPattern current = null;	24✔
57
58	var lines = File.ReadLines(path)	24✔
59	.Select(line => line.Trim())	9,202✔
60	.Where(line => !string.IsNullOrWhiteSpace(line) && !line.StartsWith(";"))	9,202✔
61	.ToQueue();	24✔
62
63	List<int> leadingIndices = lines.Select((line, i) => (line, i))	9,222✔
64	.Where(t => t.line.StartsWith("*"))	9,198✔
65	.Select(t => t.i)	84✔
66	.OrderBy(i => i).ToList();	104✔
67
68	leadingIndices.Add(lines.Count);	24✔
69
70	while (lines.TryDequeue(out string line))	9,222✔
71	{	9,198✔
72	if (line.StartsWith("*"))	9,198✔
73	{	84✔
74	int index = line.IndexOf(',');	84✔
75	string noPrefix = line.Remove(0, 1);	84✔
76	current = new HatchPattern(noPrefix.Substring(0, index - 1));	84✔
77	current.Description = new string(noPrefix.Skip(index).ToArray()).Trim();	84✔
78
79	patterns.Add(current);	84✔
80	}	84✔
81	else
82	{	9,114✔
83	//;angle, x, y, shift, offset, [dash, space, ...]
84	string[] data = line.Split(',');	9,114✔
85	Line l = new Line();	9,114✔
86	//angle
87	l.Angle = MathHelper.DegToRad(double.Parse(data[0], CultureInfo.InvariantCulture));	9,114✔
88	//x, y
89	l.BasePoint = new XY(double.Parse(data[1], CultureInfo.InvariantCulture), double.Parse(data[2], CultureInfo.InvariantCulture));	9,114✔
90
91	double shift = double.Parse(data[3], CultureInfo.InvariantCulture);	9,114✔
92	double offset = double.Parse(data[4], CultureInfo.InvariantCulture);	9,114✔
93	XY dir = new XY(shift, offset);	9,114✔
94	double cos = Math.Cos(l.Angle);	9,114✔
95	double sin = Math.Sin(l.Angle);	9,114✔
96	l.Offset = new XY(dir.X * cos - dir.Y * sin, dir.X * sin + dir.Y * cos);	9,114✔
97
98	IEnumerable<string> dashes = data.Skip(5);	9,114✔
99	if (dashes.Any())	9,114✔
100	{	9,114✔
101	l.DashLengths.AddRange(dashes.Select(d => double.Parse(d, CultureInfo.InvariantCulture)));	27,342✔
102	}	9,114✔
103
104	current.Lines.Add(l);	9,114✔
105	}	9,114✔
106	}	9,198✔
107
108	return patterns;	24✔
109	}	24✔
110
111	/// <summary>
112	/// Write a pattern or a collection of patterns into a .pat file.
113	/// </summary>
114	/// <param name="filename"></param>
115	/// <param name="patterns"></param>
116	public static void SavePatterns(string filename, params HatchPattern[] patterns)
117	{	1✔
118	using StreamWriter writer = File.CreateText(filename);	1✔
119
120	foreach (HatchPattern p in patterns)	5✔
121	{	1✔
122	writer.Write($"*{p.Name}");	1✔
123
124	if (!p.Description.IsNullOrEmpty())	1✔
125	{	1✔
126	writer.Write($",{p.Description}");	1✔
127	}	1✔
128
129	writer.WriteLine();	1✔
130
131	foreach (Line line in p.Lines)	7✔
132	{	2✔
133	StringBuilder sb = new StringBuilder();	2✔
134
135	double angle = MathHelper.DegToRad(line.Angle);	2✔
136	double cos = Math.Cos(0.0 - line.Angle);	2✔
137	double sin = Math.Sin(0.0 - line.Angle);	2✔
138
139	var v = new XY(line.Offset.X * cos - line.Offset.Y * sin, line.Offset.X * sin + line.Offset.Y * cos);	2✔
140
141	sb.Append(angle.ToString(CultureInfo.InvariantCulture));	2✔
142	sb.Append(",");	2✔
143	sb.Append(line.BasePoint.ToString(CultureInfo.InvariantCulture));	2✔
144	sb.Append(",");	2✔
145	sb.Append(v.ToString(CultureInfo.InvariantCulture));	2✔
146
147	if (line.DashLengths.Count > 0)	2✔
148	{	1✔
149	sb.Append(",");	1✔
150	sb.Append(line.DashLengths[0].ToString(CultureInfo.InvariantCulture));	1✔
151	for (int i = 1; i < line.DashLengths.Count; i++)	6✔
152	{	2✔
153	sb.Append(",");	2✔
154	sb.Append(line.DashLengths[i].ToString(CultureInfo.InvariantCulture));	2✔
155	}	2✔
156	}	1✔
157
158	writer.WriteLine(sb.ToString());	2✔
159	}	2✔
160	}	1✔
161	}	2✔
162
163	/// <summary>
164	/// Clones the current pattern.
165	/// </summary>
166	/// <returns></returns>
167	public HatchPattern Clone()
168	{	3✔
169	HatchPattern clone = (HatchPattern)this.MemberwiseClone();	3✔
170
171	clone.Lines = new List<Line>();	3✔
172	foreach (var item in this.Lines)	9!
NEW 173	{	×
NEW 174	clone.Lines.Add(item.Clone());	×
NEW 175	}	×
176
177	return clone;	3✔
178	}	3✔
179
180	/// <inheritdoc/>
181	public override string ToString()
NEW 182	{	×
NEW 183	return $"{this.Name}";	×
NEW 184	}	×
185
186	/// <summary>
187	/// Update the pattern geometry with a translation, rotation and scale.
188	/// </summary>
189	/// <param name="translation"></param>
190	/// <param name="rotation"></param>
191	/// <param name="scale"></param>
192	public void Update(XY translation, double rotation, double scale)
193	{	4,370✔
194	var tr = Transform.CreateTranslation(translation.Convert<XYZ>());	4,370✔
195	var sc = Transform.CreateScaling(new XYZ(scale));	4,370✔
196	var rot = Transform.CreateRotation(XYZ.AxisZ, rotation);	4,370✔
197
198	var transform = new Transform(tr.Matrix * sc.Matrix * rot.Matrix);	4,370✔
199
200	foreach (var line in Lines)	13,114✔
201	{	2✔
202	line.Angle += rotation;	2✔
203	line.BasePoint = transform.ApplyTransform(line.BasePoint.Convert<XYZ>()).Convert<XY>();	2✔
204	line.Offset = transform.ApplyTransform(line.Offset.Convert<XYZ>()).Convert<XY>();	2✔
205	line.DashLengths = line.DashLengths.Select(d => d * scale).ToList();	6✔
206	}	2✔
207	}	4,370✔
208	}
209	}

DomCR / ACadSharp / 18346055955

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