CAD.NET二次开发 新建图层 删除图层 指定图层颜色以及线形等

基于浩辰CAD 2019测试 功能实现

直接上代码：

[CommandMethod("CreateAndAssignAlayer")] //新建图层 然后添加到图层表里
public static void CreateAndAssignAlyer()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
using (Transaction Trans = db.TransactionManager.StartTransaction())
{
//以读模式打开图层表
LayerTable layerTable;
layerTable = Trans.GetObject(db.LayerTableId, OpenMode.ForNotify) as LayerTable;
string sLayerName = "test1";
if (layerTable.Has(sLayerName) == false)
{
LayerTableRecord layerTableRecord = new LayerTableRecord();
layerTableRecord.Color = Color.FromColorIndex(ColorMethod.ByAci, 1);
layerTableRecord.Name = sLayerName;
layerTable.UpgradeOpen();
layerTable.Add(layerTableRecord);
Trans.AddNewlyCreatedDBObject(layerTableRecord, true);
}
BlockTable blockTable;
blockTable = Trans.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord blockTableRecord;
blockTableRecord = Trans.GetObject(blockTable[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
Circle circle = new Circle();
circle.Center = new Point3d(100, 200, 0);
circle.Radius = 300;
circle.Layer = sLayerName;
blockTableRecord.AppendEntity(circle);
Trans.AddNewlyCreatedDBObject(circle, true);
db.Clayer = layerTable[sLayerName];
Trans.Commit();
}
}
[CommandMethod("TurnLayerOff")] //关闭图层表
public void TurnLayerOff()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database database = doc.Database;
using (Transaction trans = database.TransactionManager.StartTransaction())
{
LayerTable layerTable;
layerTable = trans.GetObject(database.LayerTableId, OpenMode.ForWrite) as LayerTable;
String slayer = "20180415";
LayerTableRecord layerTableRecord;
if (layerTable.Has(slayer) == false)
{
layerTableRecord = new LayerTableRecord();
layerTableRecord.Color = Color.FromColorIndex(ColorMethod.ByColor, 2);
layerTableRecord.Name = slayer;
layerTable.UpgradeOpen();
layerTable.Add(layerTableRecord);
trans.AddNewlyCreatedDBObject(layerTableRecord, true);
}
else
{
layerTableRecord = trans.GetObject(layerTable[slayer], OpenMode.ForWrite) as LayerTableRecord;
}
layerTableRecord.IsOff = true;
BlockTable blockTable;
blockTable = trans.GetObject(database.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord blockTableRecord = trans.GetObject(blockTable[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
Circle cir = new Circle();
cir.Center = new Point3d(200, 300, 400);
cir.Radius = 500;
cir.Layer = slayer;
blockTableRecord.AppendEntity(cir);
trans.AddNewlyCreatedDBObject(cir, true);
trans.Commit();
}
}
[CommandMethod("FrozenLayer")]
public void FrozenLayer()
{
Document document = Application.DocumentManager.MdiActiveDocument;
Database database = document.Database;
using (Transaction transaction=database.TransactionManager.StartTransaction())
{
LayerTable layerTable;
layerTable = transaction.GetObject(database.LayerTableId,OpenMode.ForWrite) as LayerTable;
string aLayer = "test1";
LayerTableRecord layerTableRecord;
if (layerTable.Has(aLayer)==false)
{
layerTableRecord = new LayerTableRecord();
layerTableRecord.Color = Color.FromColorIndex(ColorMethod.ByAci,3);
layerTableRecord.Name = aLayer;
layerTable.UpgradeOpen();
layerTable.Add(layerTableRecord);
transaction.AddNewlyCreatedDBObject(layerTableRecord, true);
}
else
{
layerTableRecord = transaction.GetObject(layerTable[aLayer],OpenMode.ForWrite) as LayerTableRecord;
}
layerTableRecord.IsFrozen = true;
BlockTable blockTable = transaction.GetObject(database.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord blockTableRecord = transaction.GetObject(blockTable[BlockTableRecord.ModelSpace],OpenMode.ForWrite) as BlockTableRecord;
Circle cir = new Circle();
cir.Center = new Point3d(200, 300, 400);
cir.Radius = 500;
cir.Layer = aLayer;
blockTableRecord.AppendEntity(cir);
transaction.AddNewlyCreatedDBObject(cir, true);
transaction.Commit();
}
}
[CommandMethod("SetLayerColor")] //指定图层颜色
public void SetLayerColor()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database database = doc.Database;
using (Transaction trans=database.TransactionManager.StartTransaction())
{
LayerTable layerTable = trans.GetObject(database.LayerTableId, OpenMode.ForWrite) as LayerTable;
string[] sLayerNames = new string[3];
sLayerNames[0] = "ACIRed";
sLayerNames[1] = "TrueBlue";
sLayerNames[2] = "ColorBookYellow";
Color[] acColors = new Color[3];
acColors[0] = Color.FromColorIndex(ColorMethod.ByAci,1);
acColors[1] = Color.FromRgb(23,54,232);
acColors[2] = Color.FromNames("PANTONE Yellow 0131 C","PANTONE(R) pastel coated");
int nCnt = 0;
foreach (string sLayerName in sLayerNames)
{
LayerTableRecord layerTableRecord;
if (layerTable.Has(sLayerName) == false)
{
layerTableRecord = new LayerTableRecord();
layerTableRecord.Name = sLayerName;
if (layerTable.IsWriteEnabled == false) layerTable.UpgradeOpen();
layerTable.Add(layerTableRecord);
trans.AddNewlyCreatedDBObject(layerTableRecord, true);
}
else
{
layerTableRecord = trans.GetObject(layerTable[sLayerName], OpenMode.ForWrite) as LayerTableRecord;
}
layerTableRecord.Color = acColors[nCnt];
nCnt++;
}
trans.Commit();
}
}
[CommandMethod("SetLayerLineType")]
public void SetLayerLineType() //设置图层线型
{
Document document = Application.DocumentManager.MdiActiveDocument;
Database database = document.Database;
using (Transaction transaction = database.TransactionManager.StartTransaction())
{
LayerTable layerTable = transaction.GetObject(database.LayerTableId,OpenMode.ForRead) as LayerTable;
string sLayerName = "ABC";
LayerTableRecord layerTableRecord;
if (layerTable.Has(sLayerName) == false)
{
layerTableRecord = new LayerTableRecord();
layerTableRecord.Name = sLayerName;
layerTable.UpgradeOpen();
layerTable.Add(layerTableRecord);
transaction.AddNewlyCreatedDBObject(layerTableRecord, true);
}
else
{
layerTableRecord = transaction.GetObject(layerTable[sLayerName], OpenMode.ForRead) as LayerTableRecord;
}
LinetypeTable linetypeTable = transaction.GetObject(database.LinetypeTableId, OpenMode.ForRead) as LinetypeTable;
if (linetypeTable.Has("Center") == true)
{
layerTableRecord.UpgradeOpen();
layerTableRecord.LinetypeObjectId = linetypeTable["Center"];
}
transaction.Commit();
}
}
[CommandMethod("EraseLayer")]
public void EraseLayer() //删除图层
{
Document document = Application.DocumentManager.MdiActiveDocument;
Database database = document.Database;
using (Transaction transaction=database.TransactionManager.StartTransaction())
{
LayerTable layerTable = transaction.GetObject(database.LayerTableId, OpenMode.ForRead) as LayerTable;
string sLayerName = "test1";
if (layerTable.Has(sLayerName) == true)
{
ObjectIdCollection objectIdCollection = new ObjectIdCollection();
objectIdCollection.Add(layerTable[sLayerName]);
//database.Purge(objectIdCollection);
if (objectIdCollection.Count>0)
{
LayerTableRecord layerTableRecord = transaction.GetObject(objectIdCollection[0], OpenMode.ForWrite) as LayerTableRecord;
try
{
layerTableRecord.Erase(true);
transaction.Commit();
}
catch(GrxCAD.Runtime.Exception ex)
{
Application.ShowAlertDialog("Error:\n" + ex.Message);
}
}
}

}
}