视觉样式 （.NET）

视觉样式允许您控制对象在屏幕上和输出过程中的显示方式。视觉样式作为视觉样式字典的一部分存储在图形中，并且它们都可以自定义。由于所有视觉样式都可以自定义，因此不能期望每个图形都包含所有标准视觉样式，这些样式是AutoCAD附带的图形模板的一部分。视觉样式由类表示。DBVisualStyle

列出可用的视觉样式

本示例列出存储在当前图形中的可视样式。

Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Colors
Imports Autodesk.AutoCAD.GraphicsInterface

' Lists the available visual styles
<CommandMethod("ListVisualStyle")> _
Public Shared Sub ListVisualStyle()
    ' Get the current document and database, and start a transaction
    Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
    Dim acCurDb As Database = acDoc.Database

    Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
        Dim vStyles As DBDictionary = _
            acTrans.GetObject(acCurDb.VisualStyleDictionaryId, _
                              OpenMode.ForRead)

        ' Output a message to the Command Line history
        acDoc.Editor.WriteMessage(vbLf & "Visual styles: ")

        ' Step through the dictionary
        For Each entry As DBDictionaryEntry In vStyles
            ' Get the dictionary entry
            Dim vStyle As DBVisualStyle = _
                vStyles.GetAt(entry.Key).GetObject(OpenMode.ForRead)

            ' If the visual style is not marked for internal use then output its name
            If vStyle.InternalUseOnly = False Then
                ' Output the name of the visual style
                acDoc.Editor.WriteMessage(vbLf & "  " & vStyle.Name)
            End If
        Next
    End Using
End Sub

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Colors;
using Autodesk.AutoCAD.GraphicsInterface;

// Lists the available visual styles
[CommandMethod("ListVisualStyle")]
public static void ListVisualStyle()
{
    // Get the current document and database, and start a transaction
    Document acDoc = Application.DocumentManager.MdiActiveDocument;
    Database acCurDb = acDoc.Database;

    using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
    {
        DBDictionary vStyles = acTrans.GetObject(acCurDb.VisualStyleDictionaryId, 
                                                 OpenMode.ForRead) as DBDictionary;

        // Output a message to the Command Line history
        acDoc.Editor.WriteMessage("\nVisual styles: ");

        // Step through the dictionary
        foreach (DBDictionaryEntry entry in vStyles)
        {
            // Get the dictionary entry
            DBVisualStyle vStyle = vStyles.GetAt(entry.Key).GetObject(OpenMode.ForRead) as DBVisualStyle;

            // If the visual style is not marked for internal use then output its name
            if (vStyle.InternalUseOnly == false)
            {
                // Output the name of the visual style
                acDoc.Editor.WriteMessage("\n  " + vStyle.Name);
            }
        }
    }
}

创建或编辑视觉样式

此示例创建或编辑名为 MyVS 的视觉样式。

Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Colors
Imports Autodesk.AutoCAD.GraphicsInterface

' Creates a new visual style
<CommandMethod("CreateVisualStyle")> _
Public Shared Sub CreateVisualStyle()
    ' Get the current document and database, and start a transaction
    Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
    Dim acCurDb As Database = acDoc.Database

    Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
        Dim vStyles As DBDictionary = _
            acTrans.GetObject(acCurDb.VisualStyleDictionaryId, _
                              OpenMode.ForRead)

        Try
            ' Check to see if the "MyVS" exists or not
            Dim vStyle As DBVisualStyle
            If vStyles.Contains("MyVS") = True Then
                vStyle = acTrans.GetObject(vStyles.GetAt("MyVS"), _
                                           OpenMode.ForWrite)
            Else
                acTrans.GetObject(acCurDb.VisualStyleDictionaryId, OpenMode.ForWrite)

                ' Create the visual style
                vStyle = New DBVisualStyle
                vStyles.SetAt("MyVS", vStyle)

                ' Add the visual style to the dictionary
                acTrans.AddNewlyCreatedDBObject(vStyle, True)
            End If

            ' Set the description of the visual style
            vStyle.Description = "My Visual Style"
            vStyle.Type = VisualStyleType.Custom

            ' Face Settings (Opacity, Face Style, Lighting Quality, Color, 
            '                Monochrome color, Opacity, and Material Display)
            vStyle.SetTrait(VisualStyleProperty.FaceModifier, _
                            VSFaceModifiers.FaceOpacityFlag, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceLightingModel, _
                            VSFaceLightingModel.Gooch, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceLightingQuality, _
                            VSFaceLightingQuality.PerPixelLighting, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceColorMode, _
                            VSFaceColorMode.ObjectColor, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceMonoColor, _
                            Color.FromColorIndex(ColorMethod.ByAci, 1), _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceOpacity, 0.5, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, _
                            VSDisplayStyles.MaterialsFlag + _
                            VSDisplayStyles.TexturesFlag, _
                            VisualStyleOperation.Set)

            ' Lighting (Enable Highlight Intensity, 
            '           Highlight Intensity, and Shadow Display)
            vStyle.SetTrait(VisualStyleProperty.FaceModifier, _
                            vStyle.GetTrait(VisualStyleProperty.FaceModifier) + _
                            VSFaceModifiers.SpecularFlag, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, _
                            vStyle.GetTrait(VisualStyleProperty.DisplayStyle) + _
                            VSDisplayStyles.LightingFlag, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.FaceSpecular, _
                            45.0, VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.DisplayShadowType, _
                            VSDisplayShadowType.Full, _
                            VisualStyleOperation.Set)

            ' Environment Settings (Backgrounds)
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, _
                            vStyle.GetTrait(VisualStyleProperty.DisplayStyle) + _
                            VSDisplayStyles.BackgroundsFlag, _
                            VisualStyleOperation.Set)

            ' Edge Settings (Show, Number of Lines, Color, and Always on Top)
            vStyle.SetTrait(VisualStyleProperty.EdgeModel, VSEdgeModel.Isolines, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeIsolines, _
                            6, VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeColor, _
                            Color.FromColorIndex(ColorMethod.ByAci, 2), _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeModifier, _
                            vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + _
                            VSEdgeModifiers.AlwaysOnTopFlag, _
                            VisualStyleOperation.Set)

            ' Occluded Edges (Show, Color, and Linetype)
            If Not (vStyle.GetTrait(VisualStyleProperty.EdgeStyle) And _
                    VSEdgeStyles.ObscuredFlag) > 0 Then
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, _
                                vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + _
                                VSEdgeStyles.ObscuredFlag, _
                                VisualStyleOperation.Set)
            End If
            vStyle.SetTrait(VisualStyleProperty.EdgeObscuredColor, _
                            Color.FromColorIndex(ColorMethod.ByAci, 3), _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeObscuredLinePattern, _
                            VSEdgeLinePattern.DoubleMediumDash, _
                            VisualStyleOperation.Set)

            ' Intersection Edges (Color and Linetype)
            If Not (vStyle.GetTrait(VisualStyleProperty.EdgeStyle) And _
                    VSEdgeStyles.IntersectionFlag) > 0 Then
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, _
                                vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + _
                                VSEdgeStyles.IntersectionFlag, _
                                VisualStyleOperation.Set)
            End If
            vStyle.SetTrait(VisualStyleProperty.EdgeIntersectionColor, _
                            Color.FromColorIndex(ColorMethod.ByAci, 4), _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeIntersectionLinePattern, _
                            VSEdgeLinePattern.ShortDash, _
                            VisualStyleOperation.Set)

            ' Silhouette Edges (Color and Width)
            If Not (vStyle.GetTrait(VisualStyleProperty.EdgeStyle) And _
                    VSEdgeStyles.SilhouetteFlag) > 0 Then
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, _
                                vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + _
                                VSEdgeStyles.SilhouetteFlag, _
                                VisualStyleOperation.Set)
            End If
            vStyle.SetTrait(VisualStyleProperty.EdgeSilhouetteColor, _
                            Color.FromColorIndex(ColorMethod.ByAci, 5), _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeSilhouetteWidth, 2, _
                            VisualStyleOperation.Set)

            ' Edge Modifiers (Enable Line Extensions, Enable Jitter, 
            '                 Line Extensions, Jitter, Crease Angle, 
            '                 and Halo Gap)
            If Not (vStyle.GetTrait(VisualStyleProperty.EdgeModifier) And _
                    VSEdgeModifiers.EdgeOverhangFlag) > 0 Then
                vStyle.SetTrait(VisualStyleProperty.EdgeModifier, _
                                vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + _
                                VSEdgeModifiers.EdgeOverhangFlag, _
                                VisualStyleOperation.Set)
            End If
            If Not (vStyle.GetTrait(VisualStyleProperty.EdgeModifier) And _
                    VSEdgeModifiers.EdgeJitterFlag) > 0 Then
                vStyle.SetTrait(VisualStyleProperty.EdgeModifier, _
                                vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + _
                                VSEdgeModifiers.EdgeJitterFlag, _
                                VisualStyleOperation.Set)
            End If
            vStyle.SetTrait(VisualStyleProperty.EdgeOverhang, 3, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeJitterAmount, _
                            VSEdgeJitterAmount.JitterMedium, _
                            VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeCreaseAngle, _
                            0.3, VisualStyleOperation.Set)
            vStyle.SetTrait(VisualStyleProperty.EdgeHaloGap, _
                            5, VisualStyleOperation.Set)
        Catch es As Autodesk.AutoCAD.Runtime.Exception
            MsgBox(es.Message)
        Finally
            acTrans.Commit()
        End Try
    End Using
End Sub

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Colors;
using Autodesk.AutoCAD.GraphicsInterface;

// Creates a new visual style
[CommandMethod("CreateVisualStyle")]
public static void CreateVisualStyle()
{
    // Get the current document and database, and start a transaction
    Document acDoc = Application.DocumentManager.MdiActiveDocument;
    Database acCurDb = acDoc.Database;

    using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
    {
        DBDictionary vStyles = acTrans.GetObject(acCurDb.VisualStyleDictionaryId,
                                                 OpenMode.ForRead) as DBDictionary;

        try
        {
            // Check to see if the "MyVS" exists or not
            DBVisualStyle vStyle = default(DBVisualStyle);
            if (vStyles.Contains("MyVS") == true)
            {
                vStyle = acTrans.GetObject(vStyles.GetAt("MyVS"), OpenMode.ForWrite) as DBVisualStyle;
            }
            else
            {
                acTrans.GetObject(acCurDb.VisualStyleDictionaryId, OpenMode.ForWrite);

                // Create the visual style
                vStyle = new DBVisualStyle();
                vStyles.SetAt("MyVS", vStyle);

                // Add the visual style to the dictionary
                acTrans.AddNewlyCreatedDBObject(vStyle, true);
            }

            // Set the description of the visual style
            vStyle.Description = "My Visual Style";
            vStyle.Type = VisualStyleType.Custom;

            // Face Settings (Opacity, Face Style, Lighting Quality, Color, 
            //                Monochrome color, Opacity, and Material Display)
            vStyle.SetTrait(VisualStyleProperty.FaceModifier, (int)VSFaceModifiers.FaceOpacityFlag, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceLightingModel, (int)VSFaceLightingModel.Gooch, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceLightingQuality, (int)VSFaceLightingQuality.PerPixelLighting, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceColorMode, (int)VSFaceColorMode.ObjectColor, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceMonoColor, Color.FromColorIndex(ColorMethod.ByAci, 1), VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceOpacity, 0.5, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, (int)VSDisplayStyles.MaterialsFlag + (int)VSDisplayStyles.TexturesFlag, VisualStyleOperation.Set);

            // Lighting (Enable Highlight Intensity, 
            //           Highlight Intensity, and Shadow Display)
            vStyle.SetTrait(VisualStyleProperty.FaceModifier, (int)vStyle.GetTrait(VisualStyleProperty.FaceModifier) + (int)VSFaceModifiers.SpecularFlag, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, (int)vStyle.GetTrait(VisualStyleProperty.DisplayStyle) + (int)VSDisplayStyles.LightingFlag, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.FaceSpecular, 45.0, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.DisplayShadowType, (int)VSDisplayShadowType.Full, VisualStyleOperation.Set);

            // Environment Settings (Backgrounds)
            vStyle.SetTrait(VisualStyleProperty.DisplayStyle, (int)vStyle.GetTrait(VisualStyleProperty.DisplayStyle) + (int)VSDisplayStyles.BackgroundsFlag, VisualStyleOperation.Set);

            // Edge Settings (Show, Number of Lines, Color, and Always on Top)
            vStyle.SetTrait(VisualStyleProperty.EdgeModel, (int)VSEdgeModel.Isolines, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeIsolines, 6, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeColor, Color.FromColorIndex(ColorMethod.ByAci, 2), VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeModifier, (int)vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + (int)VSEdgeModifiers.AlwaysOnTopFlag, VisualStyleOperation.Set);

            // Occluded Edges (Show, Color, and Linetype)
            if (!(((int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.ObscuredFlag) > 0))
            {
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, (int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.ObscuredFlag, VisualStyleOperation.Set);
            }
            vStyle.SetTrait(VisualStyleProperty.EdgeObscuredColor, Color.FromColorIndex(ColorMethod.ByAci, 3), VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeObscuredLinePattern, (int)VSEdgeLinePattern.DoubleMediumDash, VisualStyleOperation.Set);

            // Intersection Edges (Color and Linetype)
            if (!(((int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.IntersectionFlag) > 0))
            {
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, (int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.IntersectionFlag, VisualStyleOperation.Set);
            }
            vStyle.SetTrait(VisualStyleProperty.EdgeIntersectionColor, Color.FromColorIndex(ColorMethod.ByAci, 4), VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeIntersectionLinePattern, (int)VSEdgeLinePattern.ShortDash, VisualStyleOperation.Set);

            // Silhouette Edges (Color and Width)
            if (!(((int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.SilhouetteFlag) > 0))
            {
                vStyle.SetTrait(VisualStyleProperty.EdgeStyle, (int)vStyle.GetTrait(VisualStyleProperty.EdgeStyle) + (int)VSEdgeStyles.SilhouetteFlag, VisualStyleOperation.Set);
            }
            vStyle.SetTrait(VisualStyleProperty.EdgeSilhouetteColor, Color.FromColorIndex(ColorMethod.ByAci, 5), VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeSilhouetteWidth, 2, VisualStyleOperation.Set);

            // Edge Modifiers (Enable Line Extensions, Enable Jitter, 
            //                 Line Extensions, Jitter, Crease Angle, 
            //                 and Halo Gap)
            if (!(((int)vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + (int)VSEdgeModifiers.EdgeOverhangFlag) > 0))
            {
                vStyle.SetTrait(VisualStyleProperty.EdgeModifier, (int)vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + (int)VSEdgeModifiers.EdgeOverhangFlag, VisualStyleOperation.Set);
            }
            if (!(((int)vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + (int)VSEdgeModifiers.EdgeJitterFlag) > 0))
            {
                vStyle.SetTrait(VisualStyleProperty.EdgeModifier, (int)vStyle.GetTrait(VisualStyleProperty.EdgeModifier) + (int)VSEdgeModifiers.EdgeJitterFlag, VisualStyleOperation.Set);
            }
            vStyle.SetTrait(VisualStyleProperty.EdgeOverhang, 3, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeJitterAmount, (int)VSEdgeJitterAmount.JitterMedium, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeCreaseAngle, 0.3, VisualStyleOperation.Set);
            vStyle.SetTrait(VisualStyleProperty.EdgeHaloGap, 5, VisualStyleOperation.Set);
        }
        catch (Autodesk.AutoCAD.Runtime.Exception es)
        {
            System.Windows.Forms.MessageBox.Show(es.Message);
        }
        finally
        {
            acTrans.Commit();
        }
    }
}