/// <summary>
/// 激活图层（取消冻结、锁定、隐藏）
/// </summary>
/// <param name="LayerName"></param>
/// <returns></returns>
public bool ActivationLayer(string LayerName = "")
{
try
{
using (Transaction tran = database.TransactionManager.StartTransaction())
{
foreach (ObjectId LayerId in LayerTbl)
{
LayerTableRecord Layer = LayerId.GetObject(OpenMode.ForWrite) as LayerTableRecord;
if (string.IsNullOrWhiteSpace(LayerName) || Layer.Name == LayerName)
{
Layer.IsLocked = false;
Layer.IsHidden = false;
Layer.IsFrozen = false;
}
Layer.DowngradeOpen();
}
tran.Commit();
}
}
catch (Exception ex)
{
Logger.log("ActivationLayer", ex.Message);
}
return(false);
}
/// <summary>
/// 设置图层rgb颜色
/// </summary>
/// <param name="db"></param>
/// <param name="layerName"></param>
/// <param name="RedColor">R</param>
/// <param name="GreenColor">G</param>
/// <param name="BlueColor">B</param>
/// <returns></returns>
public static bool SetLayerColor(this Database db, string layerName, int RedColor, int GreenColor, int BlueColor)
{
using (Transaction trans = db.TransactionManager.StartTransaction())
{
LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
if (!lt.Has(layerName))
{
return(false);
}
ObjectId layerId = lt[layerName];
LayerTableRecord ltr = (LayerTableRecord)layerId.GetObject(OpenMode.ForWrite);
ltr.Color = Color.FromRgb(Convert.ToByte(RedColor), Convert.ToByte(GreenColor), Convert.ToByte(BlueColor));
ltr.DowngradeOpen();
trans.Commit();
}
return(true);
}
/// <summary>
/// 设置图层索引颜色
/// </summary>
/// <param name="db"></param>
/// <param name="layerName">图层名</param>
/// <param name="colorIndex">索引颜色</param>
/// <returns></returns>
public static bool SetLayerColor(this Database db, string layerName, int colorIndex)
{
using (Transaction trans = db.TransactionManager.StartTransaction())
{
LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
if (!lt.Has(layerName))
{
return(false);
}
ObjectId layerId = lt[layerName];
LayerTableRecord ltr = (LayerTableRecord)layerId.GetObject(OpenMode.ForWrite);
ltr.Color = Color.FromColorIndex(ColorMethod.ByAci, (short)colorIndex);
ltr.DowngradeOpen();
trans.Commit();
}
return(true);
}
/// <summary>
/// 设置图层的颜色
/// </summary>
/// <param name="db">数据库对象</param>
/// <param name="layerName">图层名</param>
/// <param name="colorIndex">颜色索引</param>
/// <returns>如果成功设置图层颜色，则返回true，否则返回false</returns>
public static bool SetLayerColor(this Database db, string layerName, short colorIndex)
{
//打开层表
LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
//如果不存在名为layerName的图层，则返回
if (!lt.Has(layerName))
{
return(false);
}
ObjectId layerId = lt[layerName];//获取名为layerName的层表记录的Id
//以写的方式打开名为layerName的层表记录
LayerTableRecord ltr = (LayerTableRecord)layerId.GetObject(OpenMode.ForWrite);
//设置图层的颜色
ltr.Color = Color.FromColorIndex(ColorMethod.ByAci, colorIndex);
ltr.DowngradeOpen(); //为了安全，将图层的状态切换为读
return(true); //设置图层颜色成功
}
/// <summary>
/// 设置图层状态
/// </summary>
/// <param name="LayerStateList"></param>
/// <returns></returns>
public bool SetLayerStates(List <LayerState> LayerStateList)
{
try
{
using (Transaction tran = database.TransactionManager.StartTransaction()) {
foreach (LayerState State in LayerStateList)
{
LayerTableRecord Layer = State.LayerId.GetObject(OpenMode.ForWrite) as LayerTableRecord;
Layer.IsLocked = State.IsLocked;
Layer.IsHidden = State.IsHidden;
Layer.IsFrozen = State.IsFrozen;
Layer.DowngradeOpen();
}
tran.Commit();
}
}
catch (Exception ex) {
Logger.log("SetLayerStates", ex.Message);
}
return(false);
}
public static ObjectId AddLayer(Database db, string layerName, short LayerColorIndex, string LineTypeName, string Description)//封装添加图层方法
{
LayerTable layerTable = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);
if (!layerTable.Has(layerName))
{
LayerTableRecord layer = new LayerTableRecord();
layer.Name = layerName;
ColorMethod method = ColorMethod.ByLayer;
layer.Color = Color.FromColorIndex(method, LayerColorIndex);
var lt = (LinetypeTable)db.LinetypeTableId.GetObject(OpenMode.ForRead);
LoadLineType();
var id = lt[LineTypeName];
layer.LinetypeObjectId = id;
layer.Description = Description;
layerTable.UpgradeOpen();
layerTable.Add(layer);
db.TransactionManager.AddNewlyCreatedDBObject(layer, true);
layer.DowngradeOpen();
}
return(layerTable[layerName]);
}