使用着色视口 （.NET）
如果图形包含 3D 面、网格、曲面或实体，则可以控制输出布局时 3D 对象的显示方式。可以将视口设置为使用视觉样式、渲染预设以及枚举定义的其他值之一。着色和渲染的视口被预览、打印并绘制为具有完整着色和渲染的文件。使用对象的方法和属性查询和设置用于绘制着色视口的选项。ShadePlotStypeSetShadePlotShadePlotViewport 输出布局时，可以使用布局的属性覆盖对象上所有视口的属性，并使用该属性控制着色质量。ShadePlotLayoutShadePlotShadePlotResLevel 注意：可以使用该属性启用对象中对象的隐藏线。此属性采用布尔值：删除隐藏线或绘制隐藏线。ViewportHiddenLinesRemovedTRUEFALSE
将视觉样式或渲染预设指定给视口本示例创建两个新视口（矩形和非矩形），并为其中一个视口分配视觉样式，为另一个视口指定渲染预设。帮助函数用于创建渲染预设，然后可以将其分配给视口。 VB.NET' Standard .NET namespaces
Imports System.Runtime.InteropServices
' Main AutoCAD namespaces
Imports Autodesk.AutoCAD
Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Geometry
Imports Autodesk.AutoCAD.PlottingServices
Imports Autodesk.AutoCAD.GraphicsInterface
' Used to create a rectangular and nonrectangular viewports - RapidRT example
<CommandMethod("RRTCreatViewportsAndSetShadePlot")> _
Public Sub RRTCreatViewportsAndSetShadePlot()
' 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()
' Open the Block table for read
Dim acBlkTbl As BlockTable = acTrans.GetObject(acCurDb.BlockTableId,
OpenMode.ForRead)
' Open the Block table record Paper space for write
Dim acBlkTblRec As BlockTableRecord =
acTrans.GetObject(acBlkTbl(BlockTableRecord.PaperSpace),
OpenMode.ForWrite)
' Create a Viewport
Using acVport1 As Autodesk.AutoCAD.DatabaseServices.Viewport =
New Autodesk.AutoCAD.DatabaseServices.Viewport()
' Set the center point and size of the viewport
acVport1.CenterPoint = New Point3d(3.75, 4, 0)
acVport1.Width = 7.5
acVport1.Height = 7.5
' Lock the viewport
acVport1.Locked = True
' Set the scale to 1" = 4'
acVport1.CustomScale = 48
' Set visual style
Dim vStyles As DBDictionary =
acTrans.GetObject(acCurDb.VisualStyleDictionaryId,
OpenMode.ForRead)
acVport1.SetShadePlot(ShadePlotType.VisualStyle,
vStyles.GetAt("Sketchy"))
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport1)
acTrans.AddNewlyCreatedDBObject(acVport1, True)
' Change the view direction
acVport1.ViewDirection = New Vector3d(-1, -1, 1)
' Create a rectangular viewport to change to a non-rectangular viewport
Using acVport2 As Autodesk.AutoCAD.DatabaseServices.Viewport =
New Autodesk.AutoCAD.DatabaseServices.Viewport()
acVport2.CenterPoint = New Point3d(9, 6.5, 0)
acVport2.Width = 2.5
acVport2.Height = 2.5
' Set the scale to 1" = 8'
acVport2.CustomScale = 96
' Set render preset
Dim namedObjs As DBDictionary =
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId,
OpenMode.ForRead)
' Check to see if the Render Settings dictionary already exists
Dim renderSettings As DBDictionary
If (namedObjs.Contains("ACAD_RENDER_RAPIDRT_SETTINGS") = True) Then
renderSettings = acTrans.GetObject(
namedObjs.GetAt("ACAD_RENDER_RAPIDRT_SETTINGS"),
OpenMode.ForWrite)
Else
' If it does not exist, create it and add it to the drawing
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId, OpenMode.ForWrite)
renderSettings = New DBDictionary()
namedObjs.SetAt("ACAD_RENDER_RAPIDRT_SETTINGS", renderSettings)
acTrans.AddNewlyCreatedDBObject(renderSettings, True)
End If
' Create a new render preset and assign it to the new viewport
Dim renderSetting As RapidRTRenderSettings
If (renderSettings.Contains("MyPreset") = False) Then
renderSetting = New RapidRTRenderSettings()
renderSetting.Name = "MyPreset"
renderSetting.Description = "Custom new render preset"
renderSettings.SetAt("MyPreset", renderSetting)
acTrans.AddNewlyCreatedDBObject(renderSetting, True)
Else
renderSetting = acTrans.GetObject(
renderSettings.GetAt("MyPreset"), OpenMode.ForRead)
End If
acVport2.SetShadePlot(ShadePlotType.RenderPreset,
renderSetting.ObjectId)
renderSetting.Dispose()
' Create a circle
Using acCirc As Circle = New Circle()
acCirc.Center = acVport2.CenterPoint
acCirc.Radius = 1.25
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acCirc)
acTrans.AddNewlyCreatedDBObject(acCirc, True)
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport2)
acTrans.AddNewlyCreatedDBObject(acVport2, True)
' Clip the viewport using the circle
acVport2.NonRectClipEntityId = acCirc.ObjectId
acVport2.NonRectClipOn = True
End Using
' Change the view direction
acVport2.ViewDirection = New Vector3d(0, 0, 1)
' Enable the viewports
acVport1.On = True
acVport2.On = True
End Using
End Using
' Save the new objects to the database
acTrans.Commit()
End Using
' Switch to the last named layout
acDoc.Database.TileMode = False
End Sub
C#// Standard .NET namespaces
using System;
using System.Runtime.InteropServices;
// Main AutoCAD namespaces
using Autodesk.AutoCAD;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.PlottingServices;
using Autodesk.AutoCAD.GraphicsInterface;
using Autodesk.AutoCAD.EditorInput;
// Used to create a rectangular and nonrectangular viewports - RapidRT example
[CommandMethod("RRTCreatViewportsAndSetShadePlot")]
public void RRTCreatViewportsAndSetShadePlot()
{
// 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())
{
// Open the Block table for read
BlockTable acBlkTbl= acTrans.GetObject(acCurDb.BlockTableId,
OpenMode.ForRead) as BlockTable;
// Open the Block table record Paper space for write
BlockTableRecord acBlkTblRec =
acTrans.GetObject(acBlkTbl[BlockTableRecord.PaperSpace],
OpenMode.ForWrite) as BlockTableRecord;
// Create a Viewport
using (Autodesk.AutoCAD.DatabaseServices.Viewport acVport1 =
new Autodesk.AutoCAD.DatabaseServices.Viewport())
{
// Set the center point and size of the viewport
acVport1.CenterPoint = new Point3d(3.75, 4, 0);
acVport1.Width = 7.5;
acVport1.Height = 7.5;
// Lock the viewport
acVport1.Locked = true;
// Set the scale to 1" = 4'
acVport1.CustomScale = 48;
// Set visual style
DBDictionary vStyles =
acTrans.GetObject(acCurDb.VisualStyleDictionaryId,
OpenMode.ForRead) as DBDictionary;
acVport1.SetShadePlot(ShadePlotType.VisualStyle,
vStyles.GetAt("Sketchy"));
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport1);
acTrans.AddNewlyCreatedDBObject(acVport1, true);
// Change the view direction
acVport1.ViewDirection = new Vector3d(-1, -1, 1);
// Create a rectangular viewport to change to a non-rectangular viewport
using (Autodesk.AutoCAD.DatabaseServices.Viewport acVport2 =
new Autodesk.AutoCAD.DatabaseServices.Viewport())
{
acVport2.CenterPoint = new Point3d(9, 6.5, 0);
acVport2.Width = 2.5;
acVport2.Height = 2.5;
// Set the scale to 1" = 8'
acVport2.CustomScale = 96;
// Set render preset
DBDictionary namedObjs =
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId,
OpenMode.ForRead) as DBDictionary;
// Check to see if the Render Settings dictionary already exists
DBDictionary renderSettings;
if (namedObjs.Contains("ACAD_RENDER_RAPIDRT_SETTINGS") == true)
{
renderSettings = acTrans.GetObject(
namedObjs.GetAt("ACAD_RENDER_RAPIDRT_SETTINGS"),
OpenMode.ForWrite) as DBDictionary;
}
else
{
// If it does not exist, create it and add it to the drawing
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId, OpenMode.ForWrite);
renderSettings = new DBDictionary();
namedObjs.SetAt("ACAD_RENDER_RAPIDRT_SETTINGS", renderSettings);
acTrans.AddNewlyCreatedDBObject(renderSettings, true);
}
// Create a new render preset and assign it to the new viewport
RapidRTRenderSettings renderSetting;
if (renderSettings.Contains("MyPreset") == false)
{
renderSetting = new RapidRTRenderSettings();
renderSetting.Name = "MyPreset";
renderSetting.Description = "Custom new render preset";
renderSettings.SetAt("MyPreset", renderSetting);
acTrans.AddNewlyCreatedDBObject(renderSetting, true);
}
else
{
renderSetting = (RapidRTRenderSettings)acTrans.GetObject(
renderSettings.GetAt("MyPreset"), OpenMode.ForRead);
}
acVport2.SetShadePlot(ShadePlotType.RenderPreset,
renderSetting.ObjectId);
renderSetting.Dispose();
// Create a circle
using (Circle acCirc = new Circle())
{
acCirc.Center = acVport2.CenterPoint;
acCirc.Radius = 1.25;
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acCirc);
acTrans.AddNewlyCreatedDBObject(acCirc, true);
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport2);
acTrans.AddNewlyCreatedDBObject(acVport2, true);
// Clip the viewport using the circle
acVport2.NonRectClipEntityId = acCirc.ObjectId;
acVport2.NonRectClipOn = true;
}
// Change the view direction
acVport2.ViewDirection = new Vector3d(0, 0, 1);
// Enable the viewports
acVport1.On = true;
acVport2.On = true;
}
}
// Save the new objects to the database
acTrans.Commit();
}
// Switch to the last named layout
acDoc.Database.TileMode = false;
}
将视觉样式或渲染预设指定到视口（基于 AutoCAD 2015 及更早版本的产品）本示例创建两个新视口（矩形和非矩形），并为其中一个视口分配视觉样式，为另一个视口指定渲染预设。帮助函数用于创建渲染预设，然后可以将其分配给视口。 注意：为了向后兼容，保留了以下示例代码。从基于 AutoCAD 2016 的产品开始，渲染设置由 RapidRTRenderSettings 类表示，而不是早期版本中使用的 MentalRayRenderSettings 类。
VB.NET' Standard .NET namespaces
Imports System.Runtime.InteropServices
' Main AutoCAD namespaces
Imports Autodesk.AutoCAD
Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Geometry
Imports Autodesk.AutoCAD.PlottingServices
Imports Autodesk.AutoCAD.GraphicsInterface
' Used to create a rectangular and nonrectangular viewports - MentalRay example
<CommandMethod("MRCreatViewportsAndSetShadePlot")> _
Public Sub MRCreatViewportsAndSetShadePlot()
' 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()
' Open the Block table for read
Dim acBlkTbl As BlockTable = acTrans.GetObject(acCurDb.BlockTableId,
OpenMode.ForRead)
' Open the Block table record Paper space for write
Dim acBlkTblRec As BlockTableRecord =
acTrans.GetObject(acBlkTbl(BlockTableRecord.PaperSpace),
OpenMode.ForWrite)
' Create a Viewport
Using acVport1 As Autodesk.AutoCAD.DatabaseServices.Viewport =
New Autodesk.AutoCAD.DatabaseServices.Viewport()
' Set the center point and size of the viewport
acVport1.CenterPoint = New Point3d(3.75, 4, 0)
acVport1.Width = 7.5
acVport1.Height = 7.5
' Lock the viewport
acVport1.Locked = True
' Set the scale to 1" = 4'
acVport1.CustomScale = 48
' Set visual style
Dim vStyles As DBDictionary =
acTrans.GetObject(acCurDb.VisualStyleDictionaryId,
OpenMode.ForRead)
acVport1.SetShadePlot(ShadePlotType.VisualStyle,
vStyles.GetAt("Sketchy"))
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport1)
acTrans.AddNewlyCreatedDBObject(acVport1, True)
' Change the view direction and enable the viewport
acVport1.ViewDirection = New Vector3d(-1, -1, 1)
acVport1.On = True
' Create a rectangular viewport to change to a non-rectangular viewport
Using acVport2 As Autodesk.AutoCAD.DatabaseServices.Viewport =
New Autodesk.AutoCAD.DatabaseServices.Viewport()
acVport2.CenterPoint = New Point3d(9, 6.5, 0)
acVport2.Width = 2.5
acVport2.Height = 2.5
' Set the scale to 1" = 8'
acVport2.CustomScale = 96
' Set render preset
Dim namedObjs As DBDictionary =
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId,
OpenMode.ForRead)
' Check to see if the Render Settings dictionary already exists
Dim renderSettings As DBDictionary
If namedObjs.Contains("ACAD_RENDER_PLOT_SETTINGS") = True Then
renderSettings = acTrans.GetObject(
namedObjs.GetAt("ACAD_RENDER_PLOT_SETTINGS"),
OpenMode.ForWrite)
Else
' If it does not exist, create it and add it to the drawing
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId, OpenMode.ForWrite)
renderSettings = New DBDictionary()
namedObjs.SetAt("ACAD_RENDER_PLOT_SETTINGS", renderSettings)
acTrans.AddNewlyCreatedDBObject(renderSettings, True)
End If
' Create the new render preset, based on the settings
' of the Medium render preset
Dim renderSetting As MentalRayRenderSettings = New MentalRayRenderSettings
GetDefaultRenderPreset(renderSetting, "Medium")
renderSetting.Name = "Medium"
renderSettings.SetAt("Medium", renderSetting)
acTrans.AddNewlyCreatedDBObject(renderSetting, True)
acVport2.SetShadePlot(ShadePlotType.RenderPreset,
renderSetting.ObjectId)
renderSetting.Dispose()
' Create a circle
Using acCirc As Circle = New Circle()
acCirc.Center = acVport2.CenterPoint
acCirc.Radius = 1.25
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acCirc)
acTrans.AddNewlyCreatedDBObject(acCirc, True)
' Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport2)
acTrans.AddNewlyCreatedDBObject(acVport2, True)
' Clip the viewport using the circle
acVport2.NonRectClipEntityId = acCirc.ObjectId
acVport2.NonRectClipOn = True
End Using
' Change the view direction
acVport2.ViewDirection = New Vector3d(0, 0, 1)
' Enable the viewport
acVport2.On = True
End Using
End Using
' Save the new objects to the database
acTrans.Commit()
End Using
' Switch to the previous Paper space layout
acCurDb.TileMode = False
End Sub
' Method used to populate a MentalRayRenderSettings object with the
' same settings used by the standard render presets
Private Shared Sub GetDefaultRenderPreset( _
ByRef renderPreset As MentalRayRenderSettings, _
ByVal name As String)
' Set the values common to multiple default render presets
renderPreset.BackFacesEnabled = False
renderPreset.DiagnosticBackgroundEnabled = False
renderPreset.DiagnosticBSPMode = _
DiagnosticBSPMode.Depth
renderPreset.DiagnosticGridMode = _
New MentalRayRenderSettingsTraitsDiagnosticGridModeParameter( _
DiagnosticGridMode.Object, 10.0)
renderPreset.DiagnosticMode = _
DiagnosticMode.Off
renderPreset.DiagnosticPhotonMode = _
DiagnosticPhotonMode.Density
renderPreset.DisplayIndex = 0
renderPreset.EnergyMultiplier = 1.0
renderPreset.ExportMIEnabled = False
renderPreset.ExportMIFileName = ""
renderPreset.FGRayCount = 100
' FGSampleRadius cannot be set, it returns invalid input
renderPreset.FGSampleRadiusState = _
New MentalRayRenderSettingsTraitsBoolParameter( _
False, False, False)
renderPreset.FinalGatheringEnabled = False
renderPreset.FinalGatheringMode = _
FinalGatheringMode.FinalGatherOff
renderPreset.GIPhotonsPerLight = 1000
renderPreset.GISampleCount = 500
renderPreset.GISampleRadius = 1.0
renderPreset.GISampleRadiusEnabled = False
renderPreset.GlobalIlluminationEnabled = False
renderPreset.LightLuminanceScale = 1500.0
renderPreset.MaterialsEnabled = True
renderPreset.MemoryLimit = 1048
renderPreset.PhotonTraceDepth = _
New MentalRayRenderSettingsTraitsTraceParameter( _
5, 5, 5)
renderPreset.PreviewImageFileName = ""
renderPreset.RayTraceDepth = _
New MentalRayRenderSettingsTraitsTraceParameter( _
3, 3, 3)
renderPreset.RayTracingEnabled = False
renderPreset.Sampling = _
New MentalRayRenderSettingsTraitsIntegerRangeParameter( _
-2, -1)
renderPreset.SamplingContrastColor = _
New MentalRayRenderSettingsTraitsFloatParameter( _
0.1, 0.1, 0.1, 0.1)
renderPreset.SamplingFilter = _
New MentalRayRenderSettingsTraitsSamplingParameter( _
Filter.Box, 1.0, 1.0)
renderPreset.ShadowMapsEnabled = False
renderPreset.ShadowMode = ShadowMode.Simple
renderPreset.ShadowSamplingMultiplier = _
ShadowSamplingMultiplier.SamplingMultiplierZero
renderPreset.ShadowsEnabled = True
renderPreset.TextureSampling = False
renderPreset.TileOrder = TileOrder.Hilbert
renderPreset.TileSize = 32
Select Case name.ToUpper()
' Assigns the values to match the Draft render preset
Case "DRAFT"
renderPreset.Description = _
"The lowest rendering quality which entails no raytracing, " & _
"no texture filtering and force 2-sided is inactive."
renderPreset.Name = "Draft"
Case ("LOW")
renderPreset.Description = _
"Rendering quality is improved over Draft. " & _
"Low anti-aliasing and a raytracing depth of 3 " & _
"reflection/refraction are processed."
renderPreset.Name = "Low"
renderPreset.RayTracingEnabled = True
renderPreset.Sampling = _
New MentalRayRenderSettingsTraitsIntegerRangeParameter( _
-1, 0)
renderPreset.SamplingContrastColor = _
New MentalRayRenderSettingsTraitsFloatParameter( _
0.1, 0.1, 0.1, 0.1)
renderPreset.SamplingFilter = _
New MentalRayRenderSettingsTraitsSamplingParameter( _
Filter.Triangle, 2.0, 2.0)
renderPreset.ShadowSamplingMultiplier = _
ShadowSamplingMultiplier.SamplingMultiplierOneFourth
Case "MEDIUM"
renderPreset.BackFacesEnabled = True
renderPreset.Description = _
"Rendering quality is improved over Low to include " & _
"texture filtering and force 2-sided is active. " & _
"Moderate anti-aliasing and a raytracing depth of " & _
"5 reflections/refractions are processed."
renderPreset.FGRayCount = 200
renderPreset.FinalGatheringMode = _
FinalGatheringMode.FinalGatherAuto
renderPreset.GIPhotonsPerLight = 10000
renderPreset.Name = "Medium"
renderPreset.RayTraceDepth = _
New MentalRayRenderSettingsTraitsTraceParameter( _
5, 5, 5)
renderPreset.RayTracingEnabled = True
renderPreset.Sampling = _
New MentalRayRenderSettingsTraitsIntegerRangeParameter( _
0, 1)
renderPreset.SamplingContrastColor = _
New MentalRayRenderSettingsTraitsFloatParameter( _
0.05, 0.05, 0.05, 0.05)
renderPreset.SamplingFilter = _
New MentalRayRenderSettingsTraitsSamplingParameter( _
Filter.Gauss, 3.0, 3.0)
renderPreset.ShadowSamplingMultiplier = _
ShadowSamplingMultiplier.SamplingMultiplierOneHalf
renderPreset.TextureSampling = True
Case "HIGH"
renderPreset.BackFacesEnabled = True
renderPreset.Description = _
"Rendering quality is improved over Medium. " & _
"High anti-aliasing and a raytracing depth of 7 " & _
"reflections/refractions are processed."
renderPreset.FGRayCount = 500
renderPreset.FinalGatheringMode = _
FinalGatheringMode.FinalGatherAuto
renderPreset.GIPhotonsPerLight = 10000
renderPreset.Name = "High"
renderPreset.RayTraceDepth = _
New MentalRayRenderSettingsTraitsTraceParameter( _
7, 7, 7)
renderPreset.RayTracingEnabled = True
renderPreset.Sampling = _
New MentalRayRenderSettingsTraitsIntegerRangeParameter( _
0, 2)
renderPreset.SamplingContrastColor = _
New MentalRayRenderSettingsTraitsFloatParameter( _
0.05, 0.05, 0.05, 0.05)
renderPreset.SamplingFilter = _
New MentalRayRenderSettingsTraitsSamplingParameter( _
Filter.Mitchell, 4.0, 4.0)
renderPreset.ShadowSamplingMultiplier = _
ShadowSamplingMultiplier.SamplingMultiplierOne
renderPreset.TextureSampling = True
Case "PRESENTATION"
renderPreset.BackFacesEnabled = True
renderPreset.Description = _
"Rendering quality is improved over High. " & _
"Very high anti-aliasing and a raytracing depth of 9 " & _
"reflections/refractions are processed."
renderPreset.FGRayCount = 1000
renderPreset.FinalGatheringMode = _
FinalGatheringMode.FinalGatherAuto
renderPreset.GIPhotonsPerLight = 10000
renderPreset.Name = "Presentation"
renderPreset.RayTraceDepth = _
New MentalRayRenderSettingsTraitsTraceParameter( _
9, 9, 9)
renderPreset.RayTracingEnabled = True
renderPreset.Sampling = _
New MentalRayRenderSettingsTraitsIntegerRangeParameter( _
1, 2)
renderPreset.SamplingContrastColor = _
New MentalRayRenderSettingsTraitsFloatParameter( _
0.05, 0.05, 0.05, 0.05)
renderPreset.SamplingFilter = _
New MentalRayRenderSettingsTraitsSamplingParameter( _
Filter.Lanczos, 4.0, 4.0)
renderPreset.ShadowSamplingMultiplier = _
ShadowSamplingMultiplier.SamplingMultiplierOne
renderPreset.TextureSampling = True
End Select
End Sub
C#// Standard .NET namespaces
using System;
using System.Runtime.InteropServices;
// Main AutoCAD namespaces
using Autodesk.AutoCAD;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.PlottingServices;
using Autodesk.AutoCAD.GraphicsInterface;
using Autodesk.AutoCAD.EditorInput;
// Used to create a rectangular and nonrectangular viewports - MentalRay example
[CommandMethod("MRCreatViewportsAndSetShadePlot")]
public void MRCreatViewportsAndSetShadePlot()
{
// 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())
{
// Open the Block table for read
BlockTable acBlkTbl= acTrans.GetObject(acCurDb.BlockTableId,
OpenMode.ForRead) as BlockTable;
// Open the Block table record Paper space for write
BlockTableRecord acBlkTblRec =
acTrans.GetObject(acBlkTbl[BlockTableRecord.PaperSpace],
OpenMode.ForWrite) as BlockTableRecord;
// Create a Viewport
using (Autodesk.AutoCAD.DatabaseServices.Viewport acVport1 =
new Autodesk.AutoCAD.DatabaseServices.Viewport())
{
// Set the center point and size of the viewport
acVport1.CenterPoint = new Point3d(3.75, 4, 0);
acVport1.Width = 7.5;
acVport1.Height = 7.5;
// Lock the viewport
acVport1.Locked = true;
// Set the scale to 1" = 4'
acVport1.CustomScale = 48;
// Set visual style
DBDictionary vStyles =
acTrans.GetObject(acCurDb.VisualStyleDictionaryId,
OpenMode.ForRead) as DBDictionary;
acVport1.SetShadePlot(ShadePlotType.VisualStyle,
vStyles.GetAt("Sketchy"));
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport1);
acTrans.AddNewlyCreatedDBObject(acVport1, true);
// Change the view direction and enable the viewport
acVport1.ViewDirection = new Vector3d(-1, -1, 1);
acVport1.On = true;
// Create a rectangular viewport to change to a non-rectangular viewport
using (Autodesk.AutoCAD.DatabaseServices.Viewport acVport2 =
new Autodesk.AutoCAD.DatabaseServices.Viewport())
{
acVport2.CenterPoint = new Point3d(9, 6.5, 0);
acVport2.Width = 2.5;
acVport2.Height = 2.5;
// Set the scale to 1" = 8'
acVport2.CustomScale = 96;
// Set render preset
DBDictionary namedObjs =
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId,
OpenMode.ForRead) as DBDictionary;
// Check to see if the Render Settings dictionary already exists
DBDictionary renderSettings;
if (namedObjs.Contains("ACAD_RENDER_PLOT_SETTINGS") == true)
{
renderSettings = acTrans.GetObject(
namedObjs.GetAt("ACAD_RENDER_PLOT_SETTINGS"),
OpenMode.ForWrite) as DBDictionary;
}
else
{
// If it does not exist, create it and add it to the drawing
acTrans.GetObject(acCurDb.NamedObjectsDictionaryId, OpenMode.ForWrite);
renderSettings = new DBDictionary();
namedObjs.SetAt("ACAD_RENDER_PLOT_SETTINGS", renderSettings);
acTrans.AddNewlyCreatedDBObject(renderSettings, true);
}
// Create the new render preset, based on the settings
// of the Medium render preset
MentalRayRenderSettings renderSetting = new MentalRayRenderSettings();
GetDefaultRenderPreset(ref renderSetting, "Medium");
renderSetting.Name = "Medium";
renderSettings.SetAt("Medium", renderSetting);
acTrans.AddNewlyCreatedDBObject(renderSetting, true);
acVport2.SetShadePlot(ShadePlotType.RenderPreset,
renderSetting.ObjectId);
renderSetting.Dispose();
// Create a circle
using (Circle acCirc = new Circle())
{
acCirc.Center = acVport2.CenterPoint;
acCirc.Radius = 1.25;
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acCirc);
acTrans.AddNewlyCreatedDBObject(acCirc, true);
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acVport2);
acTrans.AddNewlyCreatedDBObject(acVport2, true);
// Clip the viewport using the circle
acVport2.NonRectClipEntityId = acCirc.ObjectId;
acVport2.NonRectClipOn = true;
}
// Change the view direction
acVport2.ViewDirection = new Vector3d(0, 0, 1);
// Enable the viewport
acVport2.On = true;
}
}
// Save the new objects to the database
acTrans.Commit();
}
// Switch to the previous Paper space layout
acCurDb.TileMode = false;
}
// Method used to populate a MentalRayRenderSettings object with the
// same settings used by the standard render presets
private static void GetDefaultRenderPreset(
ref MentalRayRenderSettings renderPreset,
string name)
{
// Set the values common to multiple default render presets
renderPreset.BackFacesEnabled = false;
renderPreset.DiagnosticBackgroundEnabled = false;
renderPreset.DiagnosticBSPMode =
DiagnosticBSPMode.Depth;
renderPreset.DiagnosticGridMode =
new MentalRayRenderSettingsTraitsDiagnosticGridModeParameter(
DiagnosticGridMode.Object, (float)10.0);
renderPreset.DiagnosticMode =
DiagnosticMode.Off;
renderPreset.DiagnosticPhotonMode =
DiagnosticPhotonMode.Density;
renderPreset.DisplayIndex = 0;
renderPreset.EnergyMultiplier = (float)1.0;
renderPreset.ExportMIEnabled = false;
renderPreset.ExportMIFileName = "";
renderPreset.FGRayCount = 100;
// FGSampleRadius cannot be set, it returns invalid input
renderPreset.FGSampleRadiusState =
new MentalRayRenderSettingsTraitsBoolParameter(
false, false, false);
renderPreset.FinalGatheringEnabled = false;
renderPreset.FinalGatheringMode =
FinalGatheringMode.FinalGatherOff;
renderPreset.GIPhotonsPerLight = 1000;
renderPreset.GISampleCount = 500;
renderPreset.GISampleRadius = 1.0;
renderPreset.GISampleRadiusEnabled = false;
renderPreset.GlobalIlluminationEnabled = false;
renderPreset.LightLuminanceScale = 1500.0;
renderPreset.MaterialsEnabled = true;
renderPreset.MemoryLimit = 1048;
renderPreset.PhotonTraceDepth =
new MentalRayRenderSettingsTraitsTraceParameter(
5, 5, 5);
renderPreset.PreviewImageFileName = "";
renderPreset.RayTraceDepth =
new MentalRayRenderSettingsTraitsTraceParameter(
3, 3, 3);
renderPreset.RayTracingEnabled = false;
renderPreset.Sampling =
new MentalRayRenderSettingsTraitsIntegerRangeParameter(
-2, -1);
renderPreset.SamplingContrastColor =
new MentalRayRenderSettingsTraitsFloatParameter(
(float)0.1, (float)0.1, (float)0.1, (float)0.1);
renderPreset.SamplingFilter =
new MentalRayRenderSettingsTraitsSamplingParameter(
Filter.Box, 1.0, 1.0);
renderPreset.ShadowMapsEnabled = false;
renderPreset.ShadowMode = ShadowMode.Simple;
renderPreset.ShadowSamplingMultiplier =
ShadowSamplingMultiplier.SamplingMultiplierZero;
renderPreset.ShadowsEnabled = true;
renderPreset.TextureSampling = false;
renderPreset.TileOrder = TileOrder.Hilbert;
renderPreset.TileSize = 32;
switch (name.ToUpper()) {
// Assigns the values to match the Draft render preset
case "DRAFT":
renderPreset.Description =
"The lowest rendering quality which entails no raytracing, " +
"no texture filtering and force 2-sided is inactive.";
renderPreset.Name = "Draft";
break;
case "LOW":
renderPreset.Description =
"Rendering quality is improved over Draft. " +
"Low anti-aliasing and a raytracing depth of 3 " +
"reflection/refraction are processed.";
renderPreset.Name = "Low";
renderPreset.RayTracingEnabled = true;
renderPreset.Sampling =
new MentalRayRenderSettingsTraitsIntegerRangeParameter(
-1, 0);
renderPreset.SamplingContrastColor =
new MentalRayRenderSettingsTraitsFloatParameter(
(float)0.1, (float)0.1, (float)0.1, (float)0.1);
renderPreset.SamplingFilter =
new MentalRayRenderSettingsTraitsSamplingParameter(
Filter.Triangle, 2.0, 2.0);
renderPreset.ShadowSamplingMultiplier =
ShadowSamplingMultiplier.SamplingMultiplierOneFourth;
break;
case "MEDIUM":
renderPreset.BackFacesEnabled = true;
renderPreset.Description =
"Rendering quality is improved over Low to include " +
"texture filtering and force 2-sided is active. " +
"Moderate anti-aliasing and a raytracing depth of " +
"5 reflections/refractions are processed.";
renderPreset.FGRayCount = 200;
renderPreset.FinalGatheringMode =
FinalGatheringMode.FinalGatherAuto;
renderPreset.GIPhotonsPerLight = 10000;
renderPreset.Name = "Medium";
renderPreset.RayTraceDepth =
new MentalRayRenderSettingsTraitsTraceParameter(
5, 5, 5);
renderPreset.RayTracingEnabled = true;
renderPreset.Sampling =
new MentalRayRenderSettingsTraitsIntegerRangeParameter(
0, 1);
renderPreset.SamplingContrastColor =
new MentalRayRenderSettingsTraitsFloatParameter(
(float)0.05, (float)0.05, (float)0.05, (float)0.05);
renderPreset.SamplingFilter =
new MentalRayRenderSettingsTraitsSamplingParameter(
Filter.Gauss, 3.0, 3.0);
renderPreset.ShadowSamplingMultiplier =
ShadowSamplingMultiplier.SamplingMultiplierOneHalf;
renderPreset.TextureSampling = true;
break;
case "HIGH":
renderPreset.BackFacesEnabled = true;
renderPreset.Description =
"Rendering quality is improved over Medium. " +
"High anti-aliasing and a raytracing depth of 7 " +
"reflections/refractions are processed.";
renderPreset.FGRayCount = 500;
renderPreset.FinalGatheringMode =
FinalGatheringMode.FinalGatherAuto;
renderPreset.GIPhotonsPerLight = 10000;
renderPreset.Name = "High";
renderPreset.RayTraceDepth =
new MentalRayRenderSettingsTraitsTraceParameter(
7, 7, 7);
renderPreset.RayTracingEnabled = true;
renderPreset.Sampling =
new MentalRayRenderSettingsTraitsIntegerRangeParameter(
0, 2);
renderPreset.SamplingContrastColor =
new MentalRayRenderSettingsTraitsFloatParameter(
(float)0.05, (float)0.05, (float)0.05, (float)0.05);
renderPreset.SamplingFilter =
new MentalRayRenderSettingsTraitsSamplingParameter(
Filter.Mitchell, 4.0, 4.0);
renderPreset.ShadowSamplingMultiplier =
ShadowSamplingMultiplier.SamplingMultiplierOne;
renderPreset.TextureSampling = true;
break;
case "PRESENTATION":
renderPreset.BackFacesEnabled = true;
renderPreset.Description =
"Rendering quality is improved over High. " +
"Very high anti-aliasing and a raytracing depth of 9 " +
"reflections/refractions are processed.";
renderPreset.FGRayCount = 1000;
renderPreset.FinalGatheringMode =
FinalGatheringMode.FinalGatherAuto;
renderPreset.GIPhotonsPerLight = 10000;
renderPreset.Name = "Presentation";
renderPreset.RayTraceDepth =
new MentalRayRenderSettingsTraitsTraceParameter(
9, 9, 9);
renderPreset.RayTracingEnabled = true;
renderPreset.Sampling =
new MentalRayRenderSettingsTraitsIntegerRangeParameter(
1, 2);
renderPreset.SamplingContrastColor =
new MentalRayRenderSettingsTraitsFloatParameter(
(float)0.05, (float)0.05, (float)0.05, (float)0.05);
renderPreset.SamplingFilter =
new MentalRayRenderSettingsTraitsSamplingParameter(
Filter.Lanczos, 4.0, 4.0);
renderPreset.ShadowSamplingMultiplier =
ShadowSamplingMultiplier.SamplingMultiplierOne;
renderPreset.TextureSampling = true;
break;
}
}
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