13831823198

Committed 13 Mar 2025 09:57AM UTC coverage: 75.364% (-0.8%) from 76.2%

Build # 13831823198

Build Type

Pull #457

github

Committed by

web-flow

Commit Message

Merge 60e7356ff into e0bc2deb0

Pull Request Pull Request #457: Geometric transform

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31.4

/src/ACadSharp/Entities/TextEntity.cs

﻿using ACadSharp.Attributes;
using ACadSharp.Tables;
using CSMath;
using CSUtilities.Extensions;
using System;
using System.Collections.Generic;

namespace ACadSharp.Entities
{
        /// <summary>
        /// Represents a <see cref="TextEntity"/>
        /// </summary>
        /// <remarks>
        /// Object name <see cref="DxfFileToken.EntityText"/> <br/>
        /// Dxf class name <see cref="DxfSubclassMarker.Text"/>
        /// </remarks>
        [DxfName(DxfFileToken.EntityText)]
        [DxfSubClass(DxfSubclassMarker.Text)]
        public class TextEntity : Entity, IText
        {
                /// <summary>
                /// Second alignment point (in OCS)
                /// </summary>
                /// <remarks>
                /// This value is meaningful only if the value of a 72 or 73 group is nonzero (if the justification is anything other than baseline/left)
                /// </remarks>
                [DxfCodeValue(DxfReferenceType.Optional, 11, 21, 31)]
                public XYZ AlignmentPoint { get; set; }

                /// <inheritdoc/>
                [DxfCodeValue(40)]
                public double Height
                {
                        get => _height;
                        set
                        {
                                if (value < 0)
                                        throw new ArgumentOutOfRangeException("Height value cannot be negative.");
                                else
                                        this._height = value;
                        }
                }

                /// <summary>
                /// Horizontal text justification type.
                /// </summary>
                [DxfCodeValue(72)]
                public TextHorizontalAlignment HorizontalAlignment { get; set; } = TextHorizontalAlignment.Left;

                /// <summary>
                /// First alignment point(in OCS)
                /// </summary>
                [DxfCodeValue(10, 20, 30)]
                public XYZ InsertPoint { get; set; } = XYZ.Zero;

                /// <summary>
                /// Mirror flags.
                /// </summary>
                [DxfCodeValue(71)]
                public TextMirrorFlag Mirror { get; set; } = TextMirrorFlag.None;

                /// <summary>
                /// Specifies the three-dimensional normal unit vector for the object.
                /// </summary>
                [DxfCodeValue(210, 220, 230)]
                public XYZ Normal { get; set; } = XYZ.AxisZ;

                /// <inheritdoc/>
                public override string ObjectName => DxfFileToken.EntityText;

                /// <inheritdoc/>
                public override ObjectType ObjectType => ObjectType.TEXT;

                /// <summary>
                /// Specifies the oblique angle of the object.
                /// </summary>
                /// <value>
                /// The angle in radians within the range of -85 to +85 degrees. A positive angle denotes a lean to the right; a negative value will have 2*PI added to it to convert it to its positive equivalent.
                /// </value>
                [DxfCodeValue(DxfReferenceType.IsAngle, 51)]
                public double ObliqueAngle { get; set; } = 0.0;

                /// <summary>
                /// Specifies the rotation angle for the object.
                /// </summary>
                /// <value>
                /// The rotation angle in radians.
                /// </value>
                [DxfCodeValue(DxfReferenceType.IsAngle, 50)]
                public double Rotation { get; set; }

                /// <inheritdoc/>
                [DxfCodeValue(DxfReferenceType.Name | DxfReferenceType.Optional, 7)]
                public TextStyle Style
                {
                        get { return this._style; }
                        set
                        {
                                if (value == null)
                                {
                                        throw new ArgumentNullException(nameof(value));
                                }

                                if (this.Document != null)
                                {
                                        this._style = this.updateTable(value, this.Document.TextStyles);
                                }
                                else
                                {
                                        this._style = value;
                                }
                        }
                }

                /// <inheritdoc/>
                public override string SubclassMarker => DxfSubclassMarker.Text;

                /// <summary>
                /// Specifies the distance a 2D object is extruded above or below its elevation.
                /// </summary>
                [DxfCodeValue(39)]
                public double Thickness { get; set; } = 0.0;

                /// <inheritdoc/>
                /// <value>
                /// The maximum length is 256 characters.
                /// </value>
                [DxfCodeValue(1)]
                public string Value
                {
                        get
                        {
                                return _value;
                        }
                        set
                        {
                                if (value.Length > 256)
                                        throw new ArgumentException($"Text length cannot be supiror than 256, current: {value.Length}");
                                else
                                        this._value = value;
                        }
                }

                /// <summary>
                /// Vertical text justification type.
                /// </summary>
                [DxfCodeValue(DxfReferenceType.Optional, 73)]
                public virtual TextVerticalAlignmentType VerticalAlignment { get; set; } = TextVerticalAlignmentType.Baseline;

                /// <summary>
                /// Relative X scale factor—widt
                /// </summary>
                /// <remarks>
                /// This value is also adjusted when fit-type text is used
                /// </remarks>
                [DxfCodeValue(DxfReferenceType.Optional, 41)]
                public double WidthFactor { get; set; } = 1.0;

                private double _height = 0.0;
                private TextStyle _style = TextStyle.Default;
                private string _value = string.Empty;

                public TextEntity() : base()
                {
                }

                /// <inheritdoc/>
                public override void ApplyTransform(Transform transform)
                {
                        bool mirrText = this.Mirror.HasFlag(TextMirrorFlag.Backward);

                        XYZ newInsert = transform.ApplyTransform(this.InsertPoint);
                        XYZ newNormal = this.transformNormal(transform, this.Normal);

                        var transformation = this.getWorldMatrix(transform, Normal, newNormal, out Matrix3 transOW, out Matrix3 transWO);

                        List<XY> uv = applyRotation(
                                new[]
                                {
                                        this.WidthFactor * this.Height * XY.AxisX,
                                        new XY(this.Height * Math.Tan(this.ObliqueAngle), this.Height)
                                },
                                this.Rotation);

                        XYZ v;
                        v = transOW * new XYZ(uv[0].X, uv[0].Y, 0.0);
                        v = transformation * v;
                        v = transWO * v;
                        XY newUvector = new XY(v.X, v.Y);

                        v = transOW * new XYZ(uv[1].X, uv[1].Y, 0.0);
                        v = transformation * v;
                        v = transWO * v;
                        XY newVvector = new XY(v.X, v.Y);

                        double newRotation = newUvector.GetAngle();
                        double newObliqueAngle = newVvector.GetAngle();

                        if (mirrText)
                        {
                                if (XY.Cross(newUvector, newVvector) < 0)
                                {
                                        newObliqueAngle = 90 - (newRotation - newObliqueAngle);
                                        if (!(this.HorizontalAlignment.HasFlag(TextHorizontalAlignment.Fit)
                                                || this.HorizontalAlignment.HasFlag(TextHorizontalAlignment.Aligned)))
                                        {
                                                newRotation += 180;
                                        }

                                        this.Mirror = this.Mirror.RemoveFlag(TextMirrorFlag.Backward);
                                }
                                else
                                {
                                        newObliqueAngle = 90 + (newRotation - newObliqueAngle);
                                }
                        }
                        else
                        {
                                if (XY.Cross(newUvector, newVvector) < 0.0)
                                {
                                        newObliqueAngle = 90 - (newRotation - newObliqueAngle);

                                        if (newUvector.Dot(uv[0]) < 0.0)
                                        {
                                                newRotation += 180;

                                                switch (this.HorizontalAlignment)
                                                {
                                                        case TextHorizontalAlignment.Left:
                                                                this.HorizontalAlignment = TextHorizontalAlignment.Right;
                                                                break;
                                                        case TextHorizontalAlignment.Right:
                                                                this.HorizontalAlignment = TextHorizontalAlignment.Left;
                                                                break;
                                                }
                                        }
                                        else
                                        {
                                                switch (this.VerticalAlignment)
                                                {
                                                        case TextVerticalAlignmentType.Top:
                                                                this.VerticalAlignment = TextVerticalAlignmentType.Bottom;
                                                                break;
                                                        case TextVerticalAlignmentType.Bottom:
                                                                this.VerticalAlignment = TextVerticalAlignmentType.Top;
                                                                break;
                                                }
                                        }
                                }
                                else
                                {
                                        newObliqueAngle = 90 + (newRotation - newObliqueAngle);
                                }
                        }

                        // the oblique angle is defined between -85 and 85 degrees
                        newObliqueAngle = MathHelper.NormalizeAngle(newObliqueAngle);
                        if (newObliqueAngle > 180)
                        {
                                newObliqueAngle = 180 - newObliqueAngle;
                        }

                        if (newObliqueAngle < -85)
                        {
                                newObliqueAngle = -85;
                        }
                        else if (newObliqueAngle > 85)
                        {
                                newObliqueAngle = 85;
                        }

                        // the height must be greater than zero, the cos is always positive between -85 and 85
                        double newHeight = newVvector.GetLength() * Math.Cos(newObliqueAngle);
                        newHeight = MathHelper.IsZero(newHeight) ? MathHelper.Epsilon : newHeight;

                        // the width factor is defined between 0.01 and 100
                        double newWidthFactor = newUvector.GetLength() / newHeight;
                        if (newWidthFactor < 0.01)
                        {
                                newWidthFactor = 0.01;
                        }
                        else if (newWidthFactor > 100)
                        {
                                newWidthFactor = 100;
                        }

                        this.InsertPoint = newInsert;
                        this.Normal = newNormal;
                        this.Rotation = newRotation;
                        this.Height = newHeight;
                        this.WidthFactor = newWidthFactor;
                        this.ObliqueAngle = newObliqueAngle;
                }

                /// <inheritdoc/>
                public override CadObject Clone()
                {
                        TextEntity clone = (TextEntity)base.Clone();
                        clone.Style = (TextStyle)this.Style.Clone();
                        return clone;
                }

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

                internal override void AssignDocument(CadDocument doc)
                {
                        base.AssignDocument(doc);

                        this._style = this.updateTable(this.Style, doc.TextStyles);

                        doc.DimensionStyles.OnRemove += this.tableOnRemove;
                }

                internal override void UnassignDocument()
                {
                        this.Document.DimensionStyles.OnRemove -= this.tableOnRemove;

                        base.UnassignDocument();

                        this.Style = (TextStyle)this.Style.Clone();
                }

                protected override void tableOnRemove(object sender, CollectionChangedEventArgs e)
                {
                        base.tableOnRemove(sender, e);

                        if (e.Item.Equals(this.Style))
                        {
                                this.Style = this.Document.TextStyles[TextStyle.DefaultName];
                        }
                }
        }
}

1	using ACadSharp.Attributes;
2	using ACadSharp.Tables;
3	using CSMath;
4	using CSUtilities.Extensions;
5	using System;
6	using System.Collections.Generic;
7
8	namespace ACadSharp.Entities
9	{
10	/// <summary>
11	/// Represents a <see cref="TextEntity"/>
12	/// </summary>
13	/// <remarks>
14	/// Object name <see cref="DxfFileToken.EntityText"/> <br/>
15	/// Dxf class name <see cref="DxfSubclassMarker.Text"/>
16	/// </remarks>
17	[DxfName(DxfFileToken.EntityText)]
18	[DxfSubClass(DxfSubclassMarker.Text)]
19	public class TextEntity : Entity, IText
20	{
21	/// <summary>
22	/// Second alignment point (in OCS)
23	/// </summary>
24	/// <remarks>
25	/// This value is meaningful only if the value of a 72 or 73 group is nonzero (if the justification is anything other than baseline/left)
26	/// </remarks>
27	[DxfCodeValue(DxfReferenceType.Optional, 11, 21, 31)]
28	public XYZ AlignmentPoint { get; set; }	6,760✔
29
30	/// <inheritdoc/>
31	[DxfCodeValue(40)]
32	public double Height
33	{
34	get => _height;	961✔
35	set
36	{	20,518✔
37	if (value < 0)	20,518!
38	throw new ArgumentOutOfRangeException("Height value cannot be negative.");	×
39	else
40	this._height = value;	20,518✔
41	}	20,518✔
42	}
43
44	/// <summary>
45	/// Horizontal text justification type.
46	/// </summary>
47	[DxfCodeValue(72)]
48	public TextHorizontalAlignment HorizontalAlignment { get; set; } = TextHorizontalAlignment.Left;	22,333✔
49
50	/// <summary>
51	/// First alignment point(in OCS)
52	/// </summary>
53	[DxfCodeValue(10, 20, 30)]
54	public XYZ InsertPoint { get; set; } = XYZ.Zero;	121,263✔
55
56	/// <summary>
57	/// Mirror flags.
58	/// </summary>
59	[DxfCodeValue(71)]
60	public TextMirrorFlag Mirror { get; set; } = TextMirrorFlag.None;	22,267✔
61
62	/// <summary>
63	/// Specifies the three-dimensional normal unit vector for the object.
64	/// </summary>
65	[DxfCodeValue(210, 220, 230)]
66	public XYZ Normal { get; set; } = XYZ.AxisZ;	26,320✔
67
68	/// <inheritdoc/>
69	public override string ObjectName => DxfFileToken.EntityText;	1,027✔
70
71	/// <inheritdoc/>
72	public override ObjectType ObjectType => ObjectType.TEXT;	17✔
73
74	/// <summary>
75	/// Specifies the oblique angle of the object.
76	/// </summary>
77	/// <value>
78	/// The angle in radians within the range of -85 to +85 degrees. A positive angle denotes a lean to the right; a negative value will have 2*PI added to it to convert it to its positive equivalent.
79	/// </value>
80	[DxfCodeValue(DxfReferenceType.IsAngle, 51)]
81	public double ObliqueAngle { get; set; } = 0.0;	22,206✔
82
83	/// <summary>
84	/// Specifies the rotation angle for the object.
85	/// </summary>
86	/// <value>
87	/// The rotation angle in radians.
88	/// </value>
89	[DxfCodeValue(DxfReferenceType.IsAngle, 50)]
90	public double Rotation { get; set; }	2,163✔
91
92	/// <inheritdoc/>
93	[DxfCodeValue(DxfReferenceType.Name \| DxfReferenceType.Optional, 7)]
94	public TextStyle Style
95	{
96	get { return this._style; }	41,190✔
97	set
98	{	7,599✔
99	if (value == null)	7,599!
100	{	×
101	throw new ArgumentNullException(nameof(value));	×
102	}
103
104	if (this.Document != null)	7,599✔
105	{	6,708✔
106	this._style = this.updateTable(value, this.Document.TextStyles);	6,708✔
107	}	6,708✔
108	else
109	{	891✔
110	this._style = value;	891✔
111	}	891✔
112	}	7,599✔
113	}
114
115	/// <inheritdoc/>
116	public override string SubclassMarker => DxfSubclassMarker.Text;	126,610✔
117
118	/// <summary>
119	/// Specifies the distance a 2D object is extruded above or below its elevation.
120	/// </summary>
121	[DxfCodeValue(39)]
122	public double Thickness { get; set; } = 0.0;	25,368✔
123
124	/// <inheritdoc/>
125	/// <value>
126	/// The maximum length is 256 characters.
127	/// </value>
128	[DxfCodeValue(1)]
129	public string Value
130	{
131	get
132	{	961✔
133	return _value;	961✔
134	}	961✔
135	set
136	{	20,495✔
137	if (value.Length > 256)	20,495!
NEW 138	throw new ArgumentException($"Text length cannot be supiror than 256, current: {value.Length}");	×
139	else
140	this._value = value;	20,495✔
141	}	20,495✔
142	}
143
144	/// <summary>
145	/// Vertical text justification type.
146	/// </summary>
147	[DxfCodeValue(DxfReferenceType.Optional, 73)]
148	public virtual TextVerticalAlignmentType VerticalAlignment { get; set; } = TextVerticalAlignmentType.Baseline;	21,764✔
149
150	/// <summary>
151	/// Relative X scale factor—widt
152	/// </summary>
153	/// <remarks>
154	/// This value is also adjusted when fit-type text is used
155	/// </remarks>
156	[DxfCodeValue(DxfReferenceType.Optional, 41)]
157	public double WidthFactor { get; set; } = 1.0;	22,206✔
158
159	private double _height = 0.0;	20,523✔
160	private TextStyle _style = TextStyle.Default;	20,523✔
161	private string _value = string.Empty;	20,523✔
162
163	public TextEntity() : base()	20,523✔
164	{	20,523✔
165	}	20,523✔
166
167	/// <inheritdoc/>
168	public override void ApplyTransform(Transform transform)
UNCOV 169	{	×
NEW 170	bool mirrText = this.Mirror.HasFlag(TextMirrorFlag.Backward);	×
171
NEW 172	XYZ newInsert = transform.ApplyTransform(this.InsertPoint);	×
NEW 173	XYZ newNormal = this.transformNormal(transform, this.Normal);	×
174
NEW 175	var transformation = this.getWorldMatrix(transform, Normal, newNormal, out Matrix3 transOW, out Matrix3 transWO);	×
176
NEW 177	List<XY> uv = applyRotation(	×
NEW 178	new[]	×
NEW 179	{	×
NEW 180	this.WidthFactor * this.Height * XY.AxisX,	×
NEW 181	new XY(this.Height * Math.Tan(this.ObliqueAngle), this.Height)	×
NEW 182	},	×
NEW 183	this.Rotation);	×
184
185	XYZ v;
NEW 186	v = transOW * new XYZ(uv[0].X, uv[0].Y, 0.0);	×
NEW 187	v = transformation * v;	×
NEW 188	v = transWO * v;	×
NEW 189	XY newUvector = new XY(v.X, v.Y);	×
190
NEW 191	v = transOW * new XYZ(uv[1].X, uv[1].Y, 0.0);	×
NEW 192	v = transformation * v;	×
NEW 193	v = transWO * v;	×
NEW 194	XY newVvector = new XY(v.X, v.Y);	×
195
NEW 196	double newRotation = newUvector.GetAngle();	×
NEW 197	double newObliqueAngle = newVvector.GetAngle();	×
198
NEW 199	if (mirrText)	×
NEW 200	{	×
NEW 201	if (XY.Cross(newUvector, newVvector) < 0)	×
NEW 202	{	×
NEW 203	newObliqueAngle = 90 - (newRotation - newObliqueAngle);	×
NEW 204	if (!(this.HorizontalAlignment.HasFlag(TextHorizontalAlignment.Fit)	×
NEW 205	\|\| this.HorizontalAlignment.HasFlag(TextHorizontalAlignment.Aligned)))	×
NEW 206	{	×
NEW 207	newRotation += 180;	×
NEW 208	}	×
209
NEW 210	this.Mirror = this.Mirror.RemoveFlag(TextMirrorFlag.Backward);	×
NEW 211	}	×
212	else
NEW 213	{	×
NEW 214	newObliqueAngle = 90 + (newRotation - newObliqueAngle);	×
NEW 215	}	×
NEW 216	}	×
217	else
NEW 218	{	×
NEW 219	if (XY.Cross(newUvector, newVvector) < 0.0)	×
NEW 220	{	×
NEW 221	newObliqueAngle = 90 - (newRotation - newObliqueAngle);	×
222
NEW 223	if (newUvector.Dot(uv[0]) < 0.0)	×
NEW 224	{	×
NEW 225	newRotation += 180;	×
226
NEW 227	switch (this.HorizontalAlignment)	×
228	{
229	case TextHorizontalAlignment.Left:
NEW 230	this.HorizontalAlignment = TextHorizontalAlignment.Right;	×
NEW 231	break;	×
232	case TextHorizontalAlignment.Right:
NEW 233	this.HorizontalAlignment = TextHorizontalAlignment.Left;	×
NEW 234	break;	×
235	}
NEW 236	}	×
237	else
NEW 238	{	×
NEW 239	switch (this.VerticalAlignment)	×
240	{
241	case TextVerticalAlignmentType.Top:
NEW 242	this.VerticalAlignment = TextVerticalAlignmentType.Bottom;	×
NEW 243	break;	×
244	case TextVerticalAlignmentType.Bottom:
NEW 245	this.VerticalAlignment = TextVerticalAlignmentType.Top;	×
NEW 246	break;	×
247	}
NEW 248	}	×
NEW 249	}	×
250	else
NEW 251	{	×
NEW 252	newObliqueAngle = 90 + (newRotation - newObliqueAngle);	×
NEW 253	}	×
NEW 254	}	×
255
256	// the oblique angle is defined between -85 and 85 degrees
NEW 257	newObliqueAngle = MathHelper.NormalizeAngle(newObliqueAngle);	×
NEW 258	if (newObliqueAngle > 180)	×
NEW 259	{	×
NEW 260	newObliqueAngle = 180 - newObliqueAngle;	×
NEW 261	}	×
262
NEW 263	if (newObliqueAngle < -85)	×
NEW 264	{	×
NEW 265	newObliqueAngle = -85;	×
NEW 266	}	×
NEW 267	else if (newObliqueAngle > 85)	×
NEW 268	{	×
NEW 269	newObliqueAngle = 85;	×
NEW 270	}	×
271
272	// the height must be greater than zero, the cos is always positive between -85 and 85
NEW 273	double newHeight = newVvector.GetLength() * Math.Cos(newObliqueAngle);	×
NEW 274	newHeight = MathHelper.IsZero(newHeight) ? MathHelper.Epsilon : newHeight;	×
275
276	// the width factor is defined between 0.01 and 100
NEW 277	double newWidthFactor = newUvector.GetLength() / newHeight;	×
NEW 278	if (newWidthFactor < 0.01)	×
NEW 279	{	×
NEW 280	newWidthFactor = 0.01;	×
NEW 281	}	×
NEW 282	else if (newWidthFactor > 100)	×
NEW 283	{	×
NEW 284	newWidthFactor = 100;	×
NEW 285	}	×
286
NEW 287	this.InsertPoint = newInsert;	×
NEW 288	this.Normal = newNormal;	×
NEW 289	this.Rotation = newRotation;	×
NEW 290	this.Height = newHeight;	×
NEW 291	this.WidthFactor = newWidthFactor;	×
NEW 292	this.ObliqueAngle = newObliqueAngle;	×
UNCOV 293	}	×
294
295	/// <inheritdoc/>
296	public override CadObject Clone()
297	{	136✔
298	TextEntity clone = (TextEntity)base.Clone();	136✔
299	clone.Style = (TextStyle)this.Style.Clone();	136✔
300	return clone;	136✔
301	}	136✔
302
303	/// <inheritdoc/>
304	public override BoundingBox GetBoundingBox()
305	{	3✔
306	return new BoundingBox(this.InsertPoint);	3✔
307	}	3✔
308
309	internal override void AssignDocument(CadDocument doc)
310	{	12,215✔
311	base.AssignDocument(doc);	12,215✔
312
313	this._style = this.updateTable(this.Style, doc.TextStyles);	12,215✔
314
315	doc.DimensionStyles.OnRemove += this.tableOnRemove;	12,215✔
316	}	12,215✔
317
318	internal override void UnassignDocument()
319	{	434✔
320	this.Document.DimensionStyles.OnRemove -= this.tableOnRemove;	434✔
321
322	base.UnassignDocument();	434✔
323
324	this.Style = (TextStyle)this.Style.Clone();	434✔
325	}	434✔
326
327	protected override void tableOnRemove(object sender, CollectionChangedEventArgs e)
328	{	×
329	base.tableOnRemove(sender, e);	×
330
331	if (e.Item.Equals(this.Style))	×
332	{	×
333	this.Style = this.Document.TextStyles[TextStyle.DefaultName];	×
334	}	×
335	}	×
336	}
337	}

DomCR / ACadSharp / 13831823198

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