[讨论]如何插入光栅图像

gyl

我想把一幅光栅图像插入到DWG图形中，并设置插入点、缩放系数和旋转角，就象手工插入的效果，但不知程序怎么写，请大家提示一下主要步骤，什么地方可找到例程？

雪山飞狐_lzh

autodesk讨论组找到的代码:),直接贴过来了

3. using System;
4. using System.Collections.Generic;
5. using System.Text;
6. using System.Windows.Forms;
7. using Autodesk.AutoCAD.Runtime;
8. using Autodesk.AutoCAD.ApplicationServices;
9. using Autodesk.AutoCAD.DatabaseServices;
10. using Autodesk.AutoCAD.EditorInput;
11. using Autodesk.AutoCAD.Windows;
12. using Autodesk.AutoCAD.Geometry;
13. using AcRx = Autodesk.AutoCAD.Runtime;
14. using AcEd = Autodesk.AutoCAD.EditorInput;
15. using AcDb = Autodesk.AutoCAD.DatabaseServices;
16. using AcAp = Autodesk.AutoCAD.ApplicationServices;
17. using AcGe = Autodesk.AutoCAD.Geometry;
18. using AcWin = Autodesk.AutoCAD.Windows;
19. [assembly: CommandClass(typeof(Rivilis.Img))]
20. namespace Rivilis
21. {
22. public class Img
23. {
24. // Define Command "RastIns"
25. [CommandMethod("RastIns")]
26. static public void RastIns()
27. // This method can have any name
28. {
29. AcEd.Editor ed = AcAp.Application.DocumentManager.MdiActiveDocument.Editor;
30. AcWin.OpenFileDialog dlg = new AcWin.OpenFileDialog("Select raster file", "", "bmp;jpg;tif;gif", "Raster Files", AcWin.OpenFileDialog.OpenFileDialogFlags.AllowAnyExtension);
31. DialogResult rsdlg = dlg.ShowDialog();
32. if (rsdlg == DialogResult.OK)
33. {
34. string filename = dlg.Filename;
35. PromptPointOptions prOpt = new PromptPointOptions("\nInsert center point: ");
36. PromptPointResult es = ed.GetPoint(prOpt);
37. if (es.Status != PromptStatus.OK)
38. {
39. ed.WriteMessage("\nError !");
40. return;
41. }
42. AcDb.Database db = AcDb.HostApplicationServices.WorkingDatabase;
43. using (AcDb.Transaction tr = db.TransactionManager.StartTransaction())
44. {
45. AcDb.RasterImageDef rDef = new AcDb.RasterImageDef();
46. rDef.ActiveFileName = rDef.SourceFileName = filename;
47. rDef.Load();
48. AcDb.ObjectId imgDictId = AcDb.RasterImageDef.GetImageDictionary(db);
49. if (imgDictId.IsNull)
50. {
51. AcDb.RasterImageDef.CreateImageDictionary(db);
52. imgDictId = AcDb.RasterImageDef.GetImageDictionary(db);
53. }
54. if (imgDictId.IsNull)
55. return;
56. AcDb.DBDictionary imgDict = tr.GetObject(imgDictId, AcDb.OpenMode.ForWrite) as DBDictionary;
57. if (imgDict != null)
58. {
59. string keyname = filename.Substring(filename.LastIndexOfAny("\\/:".ToCharArray()) + 1);
60. keyname = keyname.Substring(0, keyname.LastIndexOf("."));
61. if (!imgDict.Contains(keyname))
62. {
63. imgDict.UpgradeOpen();
64. AcDb.ObjectId imgDefId = imgDict.SetAt(keyname, rDef);
65. tr.AddNewlyCreatedDBObject(rDef, true);
66. AcDb.RasterImage raster = new AcDb.RasterImage();
67. raster.SetDatabaseDefaults(db);
68. AcGe.Matrix3d mat = new AcGe.Matrix3d();
69. //mat = AcGe.Matrix3d.Displacement(new AcGe.Vector3d(es.Value.X, es.Value.Y, 0));
70. double dblScale =1000;
71. //--> change scale factor to you suit
72. mat = AcGe.Matrix3d.Scaling(dblScale, new AcGe.Point3d(es.Value.X, es.Value.Y, 0.0));
73. raster.TransformBy(mat);
74. raster.ImageDefId = imgDefId;
75. AcDb.BlockTableRecord btr = tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite) as AcDb.BlockTableRecord;
76. btr.AppendEntity(raster);
77. tr.AddNewlyCreatedDBObject(raster, true);
78. }
79. }
80. tr.Commit();
81. }
82. }
83. }
84. }
85. }

using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using Autodesk.AutoCAD.Runtime; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Windows; using Autodesk.AutoCAD.Geometry; using AcRx = Autodesk.AutoCAD.Runtime; using AcEd = Autodesk.AutoCAD.EditorInput; using AcDb = Autodesk.AutoCAD.DatabaseServices; using AcAp = Autodesk.AutoCAD.ApplicationServices; using AcGe = Autodesk.AutoCAD.Geometry; using AcWin = Autodesk.AutoCAD.Windows; [assembly: CommandClass(typeof(Rivilis.Img))] namespace Rivilis { public class Img { // Define Command "RastIns" [CommandMethod("RastIns")] static public void RastIns() // This method can have any name { AcEd.Editor ed = AcAp.Application.DocumentManager.MdiActiveDocument.Editor; AcWin.OpenFileDialog dlg = new AcWin.OpenFileDialog("Select raster file", "", "bmp;jpg;tif;gif", "Raster Files", AcWin.OpenFileDialog.OpenFileDialogFlags.AllowAnyExtension); DialogResult rsdlg = dlg.ShowDialog(); if (rsdlg == DialogResult.OK) { string filename = dlg.Filename; PromptPointOptions prOpt = new PromptPointOptions("\nInsert center point: "); PromptPointResult es = ed.GetPoint(prOpt); if (es.Status != PromptStatus.OK) { ed.WriteMessage("\nError !"); return; } AcDb.Database db = AcDb.HostApplicationServices.WorkingDatabase; using (AcDb.Transaction tr = db.TransactionManager.StartTransaction()) { AcDb.RasterImageDef rDef = new AcDb.RasterImageDef(); rDef.ActiveFileName = rDef.SourceFileName = filename; rDef.Load(); AcDb.ObjectId imgDictId = AcDb.RasterImageDef.GetImageDictionary(db); if (imgDictId.IsNull) { AcDb.RasterImageDef.CreateImageDictionary(db); imgDictId = AcDb.RasterImageDef.GetImageDictionary(db); } if (imgDictId.IsNull) return; AcDb.DBDictionary imgDict = tr.GetObject(imgDictId, AcDb.OpenMode.ForWrite) as DBDictionary; if (imgDict != null) { string keyname = filename.Substring(filename.LastIndexOfAny("\\/:".ToCharArray()) + 1); keyname = keyname.Substring(0, keyname.LastIndexOf(".")); if (!imgDict.Contains(keyname)) { imgDict.UpgradeOpen(); AcDb.ObjectId imgDefId = imgDict.SetAt(keyname, rDef); tr.AddNewlyCreatedDBObject(rDef, true); AcDb.RasterImage raster = new AcDb.RasterImage(); raster.SetDatabaseDefaults(db); AcGe.Matrix3d mat = new AcGe.Matrix3d(); //mat = AcGe.Matrix3d.Displacement(new AcGe.Vector3d(es.Value.X, es.Value.Y, 0)); double dblScale =1000; //--> change scale factor to you suit mat = AcGe.Matrix3d.Scaling(dblScale, new AcGe.Point3d(es.Value.X, es.Value.Y, 0.0)); raster.TransformBy(mat); raster.ImageDefId = imgDefId; AcDb.BlockTableRecord btr = tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite) as AcDb.BlockTableRecord; btr.AppendEntity(raster); tr.AddNewlyCreatedDBObject(raster, true); } } tr.Commit(); } } } } }

gyl

感谢版主的热情帮助，马上试试。

gyl

经试验，此代码确实可以插入光栅图像，但存在一定问题，插入的光栅图像在外部参照对话框里显示的状态是错误的，明明图像已经显示出来了，但状态值是“未参照”。下图第二行为用代码插入的图像，第三行为手工插图的图像。什么原因造成的？请大家指点。

gyl

顶起来，希望高手们关注一下。

fjfhgdwfn

    要看的话应在图像管理器中看吧，不应在外部参照管理器中看吧！

gyl

fjfhgdwfn发表于2009-11-16 17:10:00    要看的话应在图像管理器中看吧，不应在外部参照管理器中看吧！

AutoCAD还有图像管理器吗？我键入“image”命令后，直接弹出外部参照管理器对话框。