AutoCAD.net
System.InvalidProgramException异常错误
autocad.net通过组件方式访问autocad，所以需要和autocad通信，不能单独exe启动 参考：https://forums.autodesk.com/t5/forums/forumtopicprintpage/board-id/152/message-id/53529/print-single-message/false/page/1
表空间
- Block Table（块表）
- Layer Table（层表）
- TextStyle Table（文字样式表）
- DimStyle Table（尺寸样式表）
- Linetype Table（线型表）
- UCS Table（用户坐标系表）
- View Table（视图表）
- Viewport Table（视口表）
- RegApp Table（应用程序注册表）
- DrawOrderTable (绘图层级）
对应的访问方式：BlockTable、LayerTable、TextStyleTable、DimStyleTable…
autocad纤程
autocad使用纤程（用户模式下的线程，一个线程可包含多个纤程）,纤程转换线程：
代码语言：javascript复制PVOID ConvertThreadToFiber(PVOID pvParam);autocad调试，线程和纤程交互需要添加，否则只能调试纤程代码不能调试线程
代码语言：javascript复制Autodesk.AutoCAD.ApplicationServices.Application.SetSystemVariable("NEXTFIBERWORLD", 0); 添加上面配置后autocad才能附加调试 调试过程中vs频繁崩溃 VS 2015 设置
代码语言：javascript复制Turn on “Use Managed Compatibility Mode” via Tools –> Options –> Debugging.
Turn on “Enable native code debugging”（托管兼容模式） from Project –> Properties –> Debug.
Turn off "Xaml ui Debug"System.InvalidOperationException: 已在“VisualTreeChanged”事件期间更改可视化树。
Tools -> Options -> Debugging -> General -> Uncheck: Enable UI Debugging Tools for XAML
加载字体（**形未定义）
- 建议不要使用vs2017,开发是问题比较多，而且vs2017出现了平凡退出的情况
- 打开调试本地代码，才能加载字体调试，否则只能独立运行加载字体，或者平凡出现** 形未定义（加载字符集错误）
edit.getpoint()阻塞用户交互
autocad用户交互，阻塞当前代码执行，不阻塞消息事件，所以和自定义界面交互，可能出现循环阻塞在同一行代码的情况，需要把函数定义成命令（相同命令重复执行阻塞，只能内部条件避免）
代码语言：javascript复制 [CommandMethod("命令名称", CommandFlags.Session)]避免autocad提示gedit 3内部异常 或者发送取消命令(autocad 2014)
代码语言：javascript复制 Doc.Editor.IsQuiescent判断是否有命令
Doc.SendStringToExecute("x03", false, false, false); 取消，无空格，其他命令需要（非同步执行,C autocad com组件可以实现同步执行）
Doc.SendStringToExecute(" ", false, false, false); 一个空格空输入
Application.SetSystemVariable("FILEDIA", 0);命令隐藏
Application.SetSystemVariable("FILEDIA", 1);命令打开Cad purge清理为引用数据
代码语言：javascript复制 public void ClearUnrefedBlocks()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
Database db = doc.Database;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = trans.GetObject(db.BlockTableId, OpenMode.ForWrite)
as BlockTable;
foreach (ObjectId oid in bt)
{
BlockTableRecord btr = trans.GetObject(oid, OpenMode.ForWrite)
as BlockTableRecord;
if (btr.GetBlockReferenceIds(false, false).Count == 0
&& !btr.IsLayout)
{
btr.Erase();
}
}
trans.Commit();
}
}代理对象
autocad支持自定义对象和以C Com模式实现的ObjectARX对象（代理对象） 代理对象通过Object Enabler创建
- Object Enabler 可使图形中的自定义对象的行为比代理图形更加智能
数据操作
修改数据line转polyline（添加LockDocument、UpgradeOpen、DowngradeOpen避免异常）
代码语言：javascript复制 using (Transaction trans = DwgConvert.Doc.Database.TransactionManager.StartTransaction())
{
using (DocumentLock m_DocumentLock = Doc.LockDocument())
{
entity.UpgradeOpen();//打开
Autodesk.AutoCAD.DatabaseServices.Line ln = entity as Autodesk.AutoCAD.DatabaseServices.Line;
Polyline pl = new Polyline();
pl.AddVertexAt(0, new Point2d(ln.StartPoint.X,ln.StartPoint.Y),0,0,0);
pl.AddVertexAt(1, new Point2d(ln.EndPoint.X,ln.EndPoint.Y), 0, 0, 0);
pl.Layer = ln.Layer;
pl.ConstantWidth = proIntRes.Value;
modelSpace.AppendEntity(pl);
entity.Database.TransactionManager.AddNewlyCreatedDBObject(pl,true);
ln.Erase();//删除数据
entity.DowngradeOpen();
}
trans.Commit();
}其他数据修改操作封装
代码语言：javascript复制//插入图块（非外部文件）
public static void InsertBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt)
{
using (Database sourceDb = new Database(true, false))
{
Autodesk.AutoCAD.DatabaseServices.Polyline pl = new Autodesk.AutoCAD.DatabaseServices.Polyline(4);
pl.AddVertexAt(0, new Autodesk.AutoCAD.Geometry.Point2d(50,-50), 0, 0, 0);
pl.AddVertexAt(1, new Autodesk.AutoCAD.Geometry.Point2d(-50,-50), 0, 0, 0);
pl.AddVertexAt(2, new Autodesk.AutoCAD.Geometry.Point2d(0,100), 0, 0, 0);
pl.AddVertexAt(3, new Autodesk.AutoCAD.Geometry.Point2d(50, -50), 0, 0, 0);
using (Transaction trans = sourceDb.TransactionManager.StartTransaction())
{
BlockTable bt = trans.GetObject(sourceDb.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord btr = trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
btr.AppendEntity(pl);
trans.AddNewlyCreatedDBObject(pl, true);
trans.Commit();
}
ObjectId blockId = blokRec.Database.Insert("camera", sourceDb, false);
BlockReference blockRef = new BlockReference(pt, blockId); // 通过块定义添加块参照
blokRec.AppendEntity(blockRef); //把块参照添加到块表记录
blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true);
//return blockRef;
}
}
//获取图层名称
public static ObjectId GetLayerObjectId(this Database db, string layerName)
{
LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
//if (!lt.Has(layerName))
//{
// LayerTableRecord ltr = new LayerTableRecord();
// ltr.Name = layerName;
// lt.UpgradeOpen();
// lt.Add(ltr);
// db.TransactionManager.AddNewlyCreatedDBObject(ltr, true);
// lt.DowngradeOpen();
//}
if (lt.Has(layerName))
return lt[layerName];
else
return ObjectId.Null;
}
//设置图层名称
public static void SetLayer(this Database db, string layerName)
{
LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
if (lt.Has(layerName))
{
db.Clayer = lt[layerName];
}
}
//添加Block属性
public static void AddAttsToBlocks(this BlockReference block, AttributeDefinition atts)
{
Database db = block.Database;//获取数据库对象
BlockTableRecord btr = db.TransactionManager.GetObject(block.BlockTableRecord, OpenMode.ForRead) as BlockTableRecord;
btr.UpgradeOpen();
btr.AppendEntity(atts);
db.TransactionManager.AddNewlyCreatedDBObject(atts, true);
//db.TransactionManager.Dispose();
btr.DowngradeOpen();
}
//添加Block属性
public static void AddAttributeDefinitionToBlocks(this ObjectId blockId, AttributeDefinition atts)
{
Database db = blockId.Database;//获取数据库对象
BlockTableRecord btr = blockId.GetObject(OpenMode.ForWrite) as BlockTableRecord;
btr.AppendEntity(atts);
db.TransactionManager.AddNewlyCreatedDBObject(atts, true);
db.TransactionManager.Dispose();
btr.DowngradeOpen();
}
//修改Block属性
public static void UpdateAttributesInBlock(this BlockReference blockRef, Dictionary<string, string> attNameValues)
{
foreach (ObjectId id in blockRef.AttributeCollection)
{
AttributeReference attref = id.GetObject(OpenMode.ForRead) as AttributeReference;
if (attNameValues.ContainsKey(attref.Tag.ToUpper()))
{
attref.UpgradeOpen();
//设置属性值
attref.TextString = attNameValues[attref.Tag.ToUpper()].ToString();
attref.DowngradeOpen();
}
}
}
//查询属性
public static string GetValueAttributesInBlock(this BlockReference blockRef, string attNameValue)
{
foreach (ObjectId id in blockRef.AttributeCollection)
{
AttributeReference attref = id.GetObject(OpenMode.ForRead) as AttributeReference;
if (attNameValue.ToUpper() == attref.Tag.ToUpper())
{
//设置属性值
return attref.TextString;
}
}
return "";
}
//添加属性
public static void AddAttributeToBlockTableRecord(this BlockTableRecord blokRec, BlockReference blockRef, Dictionary<string,string> atts)
{
if (!blokRec.HasAttributeDefinitions)//添加属性定义
{
AttributeDefinition aDef = new AttributeDefinition() { Tag=""};
blokRec.ObjectId.AddAttributeDefinitionToBlocks(aDef);
}
foreach (KeyValuePair<string, string> attribute in atts)
{
if (blockRef.GetValueAttributesInBlock(attribute.Key) == "")
{
AttributeReference attRef = new AttributeReference() { Tag = attribute.Key, TextString = attribute.Value };
if (attribute.Key == "图例编码" || attribute.Key == "类型编号" || attribute.Key == "图例分类")
attRef.Visible = false;
blockRef.AttributeCollection.AppendAttribute(attRef);
blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(attRef, true);
attRef.Dispose();
}
else
{
blockRef.UpdateAttributesInBlock(new Dictionary<string, string>() { { attribute.Key, attribute.Value } });
}
}
}
public static BlockReference ReferenceOuterFileBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt,string file,string name)
{
ObjectId refid = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.AttachXref(file, name);
//ObjectId refid = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.OverlayXref(file, name);// 通过外部文件获取图块定义的ObjectId
BlockReference blockRef = new BlockReference(pt, refid); // 通过块定义添加块参照
blokRec.AppendEntity(blockRef); //把块参照添加到块表记录
blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true); // 通过事务添加块参照到数据库
return blockRef;
}
public static BlockReference ImportOuterFileBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt,string file,string name)
{
//Database sourceDb = new Database(false, true);
//sourceDb.ReadDwgFile(file, FileShare.Read, true, "");
//ObjectIdCollection blockIds = new ObjectIdCollection();
//using (Transaction ts = database.TransactionManager.StartTransaction())
//{
// BlockTable bt = (BlockTable)ts.GetObject(sourceDb.BlockTableId, OpenMode.ForRead, false);
// foreach (ObjectId btrId in bt)
// {
// BlockTableRecord btr = (BlockTableRecord)ts.GetObject(btrId, OpenMode.ForRead, false);
// if (!btr.IsAnonymous && !btr.IsLayout)
// blockIds.Add(btrId);
// btr.Dispose();
// }
// IdMapping mapping = new IdMapping();
// sourceDb.WblockCloneObjects(blockIds, database.BlockTableId, mapping, DuplicateRecordCloning.Replace, false);
//}
//sourceDb.Dispose();
if (!File.Exists(file)) throw new Exception(string.Format("n文件找不到（{0}）",file));
using (Database sourceDb = new Database(false, false))
{
sourceDb.ReadDwgFile(file, FileShare.Read, true, "");
sourceDb.CloseInput(true);
ObjectId blockId = blokRec.Database.Insert(name, sourceDb, false);
BlockReference blockRef = new BlockReference(pt, blockId); // 通过块定义添加块参照
blokRec.AppendEntity(blockRef); //把块参照添加到块表记录
blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true);
return blockRef;
}
}
public static void AddDataToEntity(this Entity entity,Dictionary<string,string> dict)
{//绑定数据
if (entity.ExtensionDictionary == ObjectId.Null)
{
entity.CreateExtensionDictionary();
}
DBDictionary xDict = entity.Database.TransactionManager.GetObject(entity.ExtensionDictionary, OpenMode.ForRead) as DBDictionary;
foreach (KeyValuePair<string, string> pair in dict)
{
if (!xDict.Contains(pair.Key))
{
xDict.UpgradeOpen();
Xrecord xRec = new Xrecord();
ResultBuffer rb = new ResultBuffer();
rb.Add(new TypedValue((int)DxfCode.Text, pair.Value));
xRec.Data = rb;
xDict.SetAt(pair.Key, xRec);
xDict.DowngradeOpen();
entity.Database.TransactionManager.AddNewlyCreatedDBObject(xRec, true);
}
}
}
public static string GetEntityData(this Entity entity,string key)
{//获取数据
using (Transaction tr = entity.Database.TransactionManager.StartTransaction())
{
if (entity.ExtensionDictionary != ObjectId.Null)
{
DBDictionary xDict = tr.GetObject(entity.ExtensionDictionary, OpenMode.ForRead) as DBDictionary;
if (xDict.Contains(key))
{
ObjectId xRecId = xDict.GetAt(key);
Xrecord xRec = tr.GetObject(xRecId, OpenMode.ForRead) as Xrecord;
if (xRec != null)
return xRec.Data.AsArray()[0].Value.ToString();
else
return "";
}
}
return "";
}
}
public static void ScaleModel(this BlockReference entity, string text)
{//图例缩放
//Extents3d extend = entity.GeometryExtentsBestFit(Autodesk.AutoCAD.Geometry.Matrix3d.Rotation(entity.Rotation,new Autodesk.AutoCAD.Geometry.Vector3d(0,0,1),entity.Position));
//double dMaxX = extend.MaxPoint.X, dMaxY = extend.MaxPoint.Y, dMinX = extend.MinPoint.X, dMinY = extend.MinPoint.Y;
List<Point> ptls = new List<Point>();
Block.RecurBlockReference(entity, new Point(),0, ref ptls);//解析数据
if (ptls.Count == 0) return;
double dMaxX = ptls.Max(o => o.X), dMaxY = ptls.Max(o => o.Y), dMinX = ptls.Min(o => o.X), dMinY = ptls.Min(o => o.Y);
string[] size = text.Split(new string[] { "mm", "*" }, StringSplitOptions.RemoveEmptyEntries);
if (size.Length < 2) return;
double sizelong, sizewidth;
double.TryParse(size[0], out sizelong);
double.TryParse(size[1], out sizewidth);
Autodesk.AutoCAD.Geometry.Scale3d scale = new Autodesk.AutoCAD.Geometry.Scale3d(sizelong == 0 ? 1 : sizelong / (dMaxX - dMinX), sizewidth == 0 ? 1 : sizewidth / (dMaxY - dMinY), 1);
entity.UpgradeOpen();
entity.ScaleFactors = entity.ScaleFactors.PostMultiplyBy(scale);
entity.DowngradeOpen();
}
[CommandMethod("DrawOrderTest")] //绘图层级次序
static public void DrawOrderTest()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
string message = "nSelect a entity to move to bottom";
PromptEntityOptions options = new PromptEntityOptions(message);
PromptEntityResult acSSPrompt = ed.GetEntity(options);
if (acSSPrompt.Status != PromptStatus.OK)
return;
using (Transaction tr = db.TransactionManager.StartTransaction())
{
Entity ent = tr.GetObject(acSSPrompt.ObjectId,
OpenMode.ForRead) as Entity;
//get the block
BlockTableRecord block = tr.GetObject(ent.BlockId,
OpenMode.ForRead) as BlockTableRecord;
//get the draw oder table of the block
DrawOrderTable drawOrder =
tr.GetObject(block.DrawOrderTableId,
OpenMode.ForWrite) as DrawOrderTable;
ObjectIdCollection ids = new ObjectIdCollection();
ids.Add(acSSPrompt.ObjectId);
//move the selected entity so that entity is
//drawn in the beginning of the draw order.
drawOrder.MoveToBottom(ids);
tr.Commit();
}
}文件操作
代码语言：javascript复制public static void NewDoc(string fileName)
{
if (File.Exists(fileName))
{
OpenDoc(fileName);
}
else
{
string strTemplatePath = "acadiso.dwt";
DocumentCollection acDocMgr = Application.DocumentManager;
Document acDoc = acDocMgr.Add(strTemplatePath);
acDocMgr.MdiActiveDocument = acDoc;
acDoc.Database.SaveAs(fileName, true, DwgVersion.Current, Doc.Database.SecurityParameters);
}
}
public static void OpenDoc(string fileName)
{
DocumentCollection acDocMgr = Application.DocumentManager;
foreach(Document doc in acDocMgr)
{
if (doc.Database.Filename == fileName)
{//文件是否打开
acDocMgr.MdiActiveDocument = doc;
return;
}
}
if (File.Exists(fileName))
acDocMgr.Open(fileName, false);
else
PutMessage("File " fileName " does not exist.");
}
public static void SaveDoc(string fileName)
{
Doc.Database.SaveAs(fileName, true, DwgVersion.Current,Doc.Database.SecurityParameters);
}autocad命令
base命令（修改图块基点） THUMBSAVE 保存缩略图 解组 ungroup 导出图像后再导出块对象 pu（-pu）资源清理，减小dwg文件大小(最好先剪贴或者拷贝后操作) laydel 删除图层 XR外部参照管理 attmode 0属性文字不显示 pe选择多个直线转换多段线，x多段线转直线 cui 菜单管理 cuiload 菜单重加载（修改cui文件后需要调用cuiload卸载后加载刷新菜单栏）
菜单自定义
cui命令加载或者cuiload重新加载cuix文件 工具栏
代码语言：javascript复制//工具栏
Toolbar fdTb = cs.MenuGroup.Toolbars.FindToolbarWithName("XXXX");
if (fdTb != null)
fdTb.ToolbarItems.Clear();
else
fdTb = new Toolbar("XXXX", cs.MenuGroup);
ToolbarButton tlBtn1 = new ToolbarButton(mMar1.ElementID, "XXXX", fdTb, 0);
ToolbarButton tlBtn2 = new ToolbarButton(mMar2.ElementID, "XXXX", fdTb, 0);
ToolbarButton tlBtn3 = new ToolbarButton(mMar3.ElementID, "XXXXX", fdTb, 1);
fdTb.ToolbarItems.Add(tlBtn1);
fdTb.ToolbarItems.Add(tlBtn2);
fdTb.ToolbarItems.Add(tlBtn3);
fdTb.ToolbarVisible = ToolbarVisible.show;菜单栏
代码语言：javascript复制PopMenu pmParent = cs.MenuGroup.PopMenus.FindPopWithName(customName);
if (pmParent == null)
pmParent = new PopMenu(customName, new StringCollection() { "POP14" }, "PMU_191_D624B", cs.MenuGroup);
//清除菜单
pmParent.PopMenuItems.Clear();
new PopMenuItem(new MenuMacro(maGroup, "xxx", "xxxxx", ""), "xxx", pmParent, -1);
new PopMenuItem(new MenuMacro(maGroup, "xxxx", "xxxx", ""), "xxxx", pmParent, -1);
new PopMenuItem(pmParent, 2);
MenuMacro mMar1 = new MenuMacro(maGroup, "xxxx", "SWJX_ScaleModel", "");
mMar1.macro.SmallImage = LoginInfo.instance().AppPath "/Resources/尺寸.bmp";
new PopMenuItem(mMar1, "xxx", pmParent, -1);
new PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxxx", ""), "xxxx", pmParent, -1);
MenuMacro mMar2 = new MenuMacro(maGroup, "xxxxx", "xxxx", "");
mMar2.macro.SmallImage = LoginInfo.instance().AppPath "/Resources/xx.bmp";
new PopMenuItem(mMar2, "xxxx", pmParent, -1);
MenuMacro mMar3 = new MenuMacro(maGroup, "xxxxx", "xxxxxx", "");
mMar3.macro.SmallImage = LoginInfo.instance().AppPath "/Resources/x.bmp";
new PopMenuItem(mMar3, "xxxxx", pmParent, -1);
#if DEBUG
new PopMenuItem(new MenuMacro(maGroup, "xxxx", "xxxxxx", ""), "xxxx", pmParent, -1);
#endif
new PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxx", ""), "xxxxxx", pmParent, -1);
#if DEBUG
new PopMenuItem(pmParent, 9);
#else
new PopMenuItem(pmParent, 8);
#endif
new PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxx", ""), "xxxxx", pmParent, -1);
#if DEBUG
new PopMenuItem(pmParent, 11);
#else
new PopMenuItem(pmParent, 10);
#endif
new PopMenuItem(new MenuMacro(maGroup, "xxxxx", "SWJX_InsertCamera", ""), "xxxxxx", pmParent, -1);
cs.MenuGroup.PopMenus.Add(pmParent);功能区、选项卡、面板
代码语言：javascript复制 RibbonTabSource myRibbonTab = null;
foreach (RibbonTabSource ribTab in cs.MenuGroup.RibbonRoot.RibbonTabSources)
{//选项卡
...
}
Autodesk.AutoCAD.Customization.RibbonPanelSource panelSrc3 = null;
foreach (Autodesk.AutoCAD.Customization.RibbonPanelSource ribPanel in cs.MenuGroup.RibbonRoot.RibbonPanelSources)
{//面板
...
}添加到工作区
代码语言：javascript复制//添加到工作区
foreach (Workspace wk in cs.Workspaces)
{
foreach(WorkspacePopMenu pm in wk.WorkspacePopMenus)
{//菜单
...
}
if (!bFound)
{//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）
wk.WorkspacePopMenus.Add(new WorkspacePopMenu(wk, pmParent) { Display = 1 });
}
foreach (WorkspaceToolbar tbl in wk.WorkspaceToolbars)
{//工具栏
...
}
if (!bFound)
{//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）
wk.WorkspaceToolbars.Add(new WorkspaceToolbar(wk, fdTb) { Display=1});
}
foreach (WSRibbonTabSourceReference pm in wk.WorkspaceRibbonRoot.WorkspaceTabs)
{//面板
}
if (!bFound)
{//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）
wk.WorkspaceRibbonRoot.WorkspaceTabs.Add(WSRibbonTabSourceReference.Create(myRibbonTab));
}
...
}
if (cs.IsModified) cs.Save();
Application.ReloadAllMenus();进度条
代码语言：javascript复制private static ProgressMeter s_Pmeter = new ProgressMeter();动态修改数据
代码语言：javascript复制tr.Commit();//提交后修改绘制
tr.TransactionManager.QueueForGraphicsFlush();cad颜色设置
- 1-255 255中基本颜色
- 0 表示 ByBlock
- 256 表示 ByLayer
内存中绘图
代码语言：javascript复制int Width = 512,WallThickness = 60;
Autodesk.AutoCAD.GraphicsSystem.Manager gsm = doc.GraphicsManager;
using (Transaction tran = doc.Database.TransactionManager.StartTransaction())
{
ViewportTableRecord vTbRec = (ViewportTableRecord)tran.GetObject(doc.Editor.ActiveViewportId, OpenMode.ForRead);
using (Autodesk.AutoCAD.GraphicsSystem.View view = new Autodesk.AutoCAD.GraphicsSystem.View())
{
using (Autodesk.AutoCAD.GraphicsSystem.Device dev = gsm.CreateAutoCADOffScreenDevice())
{
dev.DeviceRenderType = Autodesk.AutoCAD.GraphicsSystem.RendererType.Default;
dev.BackgroundColor = System.Drawing.Color.Black;
dev.Add(view);
dev.Update();
using (Autodesk.AutoCAD.GraphicsSystem.Model model = gsm.CreateAutoCADModel())
{
view.VisualStyle = new Autodesk.AutoCAD.GraphicsInterface.VisualStyle(vst);
view.Mode = Autodesk.AutoCAD.GraphicsSystem.RenderMode.FlatShaded;
using (Transaction tr = doc.Database.TransactionManager.StartTransaction())
{
Point Max = new Point() { X = double.NaN, Y = double.NaN }, Min = new Point() { X= double.NaN,Y= double.NaN};
LayerTable layTbl = tr.GetObject(doc.Database.LayerTableId, OpenMode.ForRead) as LayerTable;
BlockTable bt = (BlockTable)tr.GetObject(doc.Database.BlockTableId, OpenMode.ForRead);
foreach (ObjectId btId in bt)
{
BlockTableRecord btr = (BlockTableRecord)tr.GetObject(btId, OpenMode.ForRead);
foreach (ObjectId btrId in btr)
{
BlockTableRecord modelSpace = tr.GetObject(btId, OpenMode.ForRead) as BlockTableRecord;
//删除未被引用的块
if (modelSpace.GetBlockReferenceIds(false, false).Count == 0 && !modelSpace.IsLayout)
continue;
DBObject obj = tr.GetObject(btrId, OpenMode.ForRead);
if ((obj is Autodesk.AutoCAD.DatabaseServices.Line || obj is Polyline || obj is Polyline3d)
&& (obj as Entity).Layer == LayerName.instance()[(int)LayerTag.Wall])
{
Entity entity = (obj as Entity);
//entity.UpgradeOpen();
//entity.Color = Autodesk.AutoCAD.Colors.Color.FromColor(System.Drawing.Color.White);
//entity.DowngradeOpen();
//获取数据的最大边界
if (double.IsNaN(Max.X) || Max.X < entity.GeometricExtents.MaxPoint.X)
Max.X = entity.GeometricExtents.MaxPoint.X;
if (double.IsNaN(Min.X)|| Min.X > entity.GeometricExtents.MinPoint.X)
Min.X = entity.GeometricExtents.MinPoint.X;
if (double.IsNaN(Max.Y) || Max.Y < entity.GeometricExtents.MaxPoint.Y)
Max.Y = entity.GeometricExtents.MaxPoint.Y;
if (double.IsNaN(Min.Y) || Min.Y > entity.GeometricExtents.MinPoint.Y)
Min.Y = entity.GeometricExtents.MinPoint.Y;
//if (obj is Polyline && (obj as Polyline).ConstantWidth > WallThickness)
// WallThickness = (int)(obj as Polyline).ConstantWidth/2;
view.Add(obj, model);
}
}
}
tr.Commit();
//Max.Z = Doc.Database.Extmax.Z;
//Min.Z = Doc.Database.Extmin.Z;
Max.X = WallThickness; Max.Y = WallThickness; Min.X -= WallThickness; Min.Y -= WallThickness;
if (double.IsNaN(Max.X) || double.IsNaN(Min.X) || double.IsNaN(Max.Y) || double.IsNaN(Min.Y))
{
dev.OnSize(new System.Drawing.Size(Width, (int)(Width * (doc.Database.Extmax.Y - doc.Database.Extmin.Y) / (doc.Database.Extmax.X - doc.Database.Extmin.X))));
view.ZoomExtents(doc.Database.Extmax, doc.Database.Extmin);
view.SetView(vTbRec.Target, vTbRec.Target.Subtract(new Vector3d(0, 0, 1)), Vector3d.ZAxis, doc.Database.Extmax.X - doc.Database.Extmin.X, doc.Database.Extmax.Y - doc.Database.Extmin.Y);
using (System.Drawing.Bitmap bitmap = view.GetSnapshot(new System.Drawing.Rectangle(0, 0, Width, (int)(Width * (doc.Database.Extmax.Y - doc.Database.Extmin.Y) / (doc.Database.Extmax.X - doc.Database.Extmin.X)))))
{
Bitmap2Png(bitmap).Save(filename);
dev.Erase(view);
view.EraseAll();
}
}
else
{
dev.OnSize(new System.Drawing.Size(Width, (int)(Width * (Max.Y - Min.Y) / (Max.X - Min.X))));
view.ZoomExtents(Max.ToPoint3d(), Min.ToPoint3d());
view.SetView(vTbRec.Target, vTbRec.Target.Subtract(new Vector3d(0, 0, 1)), Vector3d.ZAxis, Max.X - Min.X, Max.Y - Min.Y);
using (System.Drawing.Bitmap bitmap = view.GetSnapshot(new System.Drawing.Rectangle(0, 0, Width, (int)(Width * (Max.Y - Min.Y) / (Max.X - Min.X)))))
{
Bitmap2Png(bitmap).Save(filename);
dev.Erase(view);
view.EraseAll();
}
}
}
}
}
}
}
