【转载】C# 实现CAD的Isolate隔离对象

qq1254582201 · 发表于 2024-9-25 16:48:02

本帖最后由 qq1254582201 于 2024-9-25 16:51 编辑

[CommandMethod("ISOL")]
public static void IsolateSelection()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var selection = ed.GetSelection();
if (selection.Status != PromptStatus.OK)
return;
var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds());
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace)
{
if (!ids.Contains(id))
{
var entity = (Entity)tr.GetObject(id, OpenMode.ForWrite);
entity.Visible = false;
}
}
tr.Commit();
}
}
[CommandMethod("UNISOL")]
public static void UnisolateAll()
{
var db = HostApplicationServices.WorkingDatabase;
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace)
{
var entity = (Entity)tr.GetObject(id, OpenMode.ForRead);
if (!entity.Visible)
{
entity.UpgradeOpen();
entity.Visible = true;
}
}
tr.Commit();
}
}

[CommandMethod("ISOL")] 
        public static void IsolateSelection() 
        { 
            var doc = Application.DocumentManager.MdiActiveDocument; 
            var db = doc.Database; 
            var ed = doc.Editor; 
            var selection = ed.GetSelection(); 
            if (selection.Status != PromptStatus.OK) 
                return; 
            var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds()); 
            using (var tr = new OpenCloseTransaction()) 
            { 
                var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
                foreach (ObjectId id in curSpace) 
                { 
                    if (!ids.Contains(id)) 
                    { 
                        var entity = (Entity)tr.GetObject(id, OpenMode.ForWrite); 
                        entity.Visible = false; 
                    } 
                } 
                tr.Commit(); 
            } 
        } 
 
        [CommandMethod("UNISOL")] 
        public static void UnisolateAll() 
        { 
            var db = HostApplicationServices.WorkingDatabase; 
            using (var tr = new OpenCloseTransaction()) 
            { 
                var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
                foreach (ObjectId id in curSpace) 
                { 
                    var entity = (Entity)tr.GetObject(id, OpenMode.ForRead); 
                    if (!entity.Visible) 
                    { 
                        entity.UpgradeOpen(); 
                        entity.Visible = true; 
                    } 
                } 
                tr.Commit(); 
            } 
        }

//Summary: Lets user select seed point -> Zooms Extent -> Selects Boundary set -> Isolates them -> Creates boundary -> Unisolates all -> Returns Boundaries
public DBObjectCollection CreateBoundary(Transaction trans, BlockTableRecord btr, DBObjectCollection boundarySet, Point3d internalSeedPoint)
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var ResultingBoundaries = new DBObjectCollection(); //Return
var ResultingBoundaryIds = new ObjectIdCollection();
try
{
//Summary: Isolate Boundary set -> Create boundary -> Unisolates Boundary set ;
//Isolate the boundarySet entities.
var hiddenEntities = new List<Entity>();
foreach (ObjectId id in btr)
{
var entity = (Entity)trans.GetObject(id, OpenMode.ForWrite);
if (boundarySet.Contains(entity))
{
entity.Visible = true;
}
else
{
entity.Visible = false;
hiddenEntities.Add(entity);
}
}
//Creating and adding boundary objects to the drawing. Also collecting its ObjectIds for later use.
//Tracing the bondary out of input curves. Here InternalSeedPoint is a point inside the boundary that is going to be generated.
ResultingBoundaries = ed.TraceBoundary(internalSeedPoint, false);
//Appending the boundary to the databse
foreach (Polyline boundary in ResultingBoundaries)
{
btr.AppendEntity(boundary);
trans.AddNewlyCreatedDBObject(boundary, true);
//Collecting ResultingBoundaryIds for later use (if required)
ResultingBoundaryIds.Add(boundary.ObjectId);
}
//Unisolate the boundarySet entities.
foreach (Entity entity in hiddenEntities)
{
entity.Visible = true;
}
}
catch (Exception ex)
{
Application.ShowAlertDialog("Error: " + ex.Message);
}
return ResultingBoundaries;
}

//Summary: Lets user select seed point -> Zooms Extent -> Selects Boundary set -> Isolates them -> Creates boundary -> Unisolates all -> Returns Boundaries 
        public DBObjectCollection CreateBoundary(Transaction trans, BlockTableRecord btr, DBObjectCollection boundarySet, Point3d internalSeedPoint) 
        { 
            var doc = Application.DocumentManager.MdiActiveDocument; 
            var db = doc.Database; 
            var ed = doc.Editor; 
            var ResultingBoundaries = new DBObjectCollection(); //Return 
            var ResultingBoundaryIds = new ObjectIdCollection(); 
 
            try 
            { 
                //Summary: Isolate Boundary set -> Create boundary -> Unisolates Boundary set ; 
 
                //Isolate the boundarySet entities. 
                var hiddenEntities = new List<Entity>(); 
                foreach (ObjectId id in btr) 
                { 
                    var entity = (Entity)trans.GetObject(id, OpenMode.ForWrite); 
                    if (boundarySet.Contains(entity)) 
                    { 
                        entity.Visible = true; 
                    } 
                    else 
                    { 
                        entity.Visible = false; 
                        hiddenEntities.Add(entity); 
                    } 
                } 
 
                //Creating and adding boundary objects to the drawing. Also collecting its ObjectIds for later use. 
                //Tracing the bondary out of input curves. Here InternalSeedPoint is a point inside the boundary that is going to be generated. 
                ResultingBoundaries = ed.TraceBoundary(internalSeedPoint, false); 
                //Appending the boundary to the databse 
                foreach (Polyline boundary in ResultingBoundaries) 
                { 
                    btr.AppendEntity(boundary); 
                    trans.AddNewlyCreatedDBObject(boundary, true); 
 
                    //Collecting ResultingBoundaryIds for later use (if required) 
                    ResultingBoundaryIds.Add(boundary.ObjectId); 
                } 
 
                //Unisolate the boundarySet entities. 
                foreach (Entity entity in hiddenEntities) 
                { 
                    entity.Visible = true; 
                } 
            } 
            catch (Exception ex) 
            { 
                Application.ShowAlertDialog("Error: " + ex.Message); 
            } 
            return ResultingBoundaries; 
        }

public void MakeSelection(DBObjectCollection selectedObjects)
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
ObjectId[] selectedObjIds = new ObjectId[selectedObjects.Count];
for (int i = 0; i < selectedObjects.Count; i++)
{
selectedObjIds[i] = selectedObjects[i].ObjectId;
}
//Mark selection on the drawing
ed.SetImpliedSelection(selectedObjIds);
}

复制代码

public static void IsolateSelection()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var selection = ed.GetSelection();
if (selection.Status != PromptStatus.OK) return;
var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds());
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace)
{
if (!ids.Contains(id))
{
var entity = (Autodesk.AutoCAD.DatabaseServices.Entity)tr.GetObject(id, OpenMode.ForWrite);
entity.Visible = false;
}
}
tr.Commit();
}
}

public static void IsolateSelection() 
        { 
            var doc = Application.DocumentManager.MdiActiveDocument; 
            var db = doc.Database; 
            var ed = doc.Editor; 
 
            var selection = ed.GetSelection(); 
            if (selection.Status != PromptStatus.OK) return; 
 
            var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds()); 
            using (var tr = new OpenCloseTransaction()) 
            { 
                var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
                foreach (ObjectId id in curSpace) 
                { 
                    if (!ids.Contains(id)) 
                    { 
                        var entity = (Autodesk.<a href="http://bbs.mjtd.com/forum-41-1.html" target="_blank" class="relatedlink">AutoCAD</a>.DatabaseServices.Entity)tr.GetObject(id, OpenMode.ForWrite); 
                        entity.Visible = false; 
                    } 
                } 
                tr.Commit(); 
            } 
        }

public static void UnisolateAll()
{
var db = HostApplicationServices.WorkingDatabase;
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace)
{
var entity = (Autodesk.AutoCAD.DatabaseServices.Entity)tr.GetObject(id, OpenMode.ForWrite);
if (!entity.Visible)
{
//curSpace.DowngradeOpen();
//entity.UpgradeOpen();
entity.Visible = true;
//entity.DowngradeOpen(); //Temporarily Added.
}
}
tr.Commit();
}
}

qq1254582201 · 发表于 2024-9-25 16:52:16

public static void IsolateSelection()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var selection = ed.GetSelection();
if (selection.Status != PromptStatus.OK) return;
var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds());
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace)
{
if (!ids.Contains(id))
{
var entity = (Autodesk.AutoCAD.DatabaseServices.Entity)tr.GetObject(id, OpenMode.ForWrite);
entity.Visible = false;
}
}
tr.Commit();
}
}

public static void IsolateSelection() 
        { 
            var doc = Application.DocumentManager.MdiActiveDocument; 
            var db = doc.Database; 
            var ed = doc.Editor; 
 
            var selection = ed.GetSelection(); 
            if (selection.Status != PromptStatus.OK) return; 
 
            var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds()); 
            using (var tr = new OpenCloseTransaction()) 
            { 
                var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
                foreach (ObjectId id in curSpace) 
                { 
                    if (!ids.Contains(id)) 
                    { 
                        var entity = (Autodesk.AutoCAD.DatabaseServices.Entity)tr.GetObject(id, OpenMode.ForWrite); 
                        entity.Visible = false; 
                    } 
                } 
                tr.Commit(); 
            } 
        }

qq1254582201 · 发表于 2024-9-25 17:09:15

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;
public class AdvancedIsolateObjects
{
[CommandMethod("ADV_ISOLATEOBJS")]
public void IsolateObjectsByLayerAndGroup()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
// Prompt the user to select objects
PromptSelectionResult selectionResult = ed.GetSelection();
if (selectionResult.Status != PromptStatus.OK)
return;
// Get the selected object IDs
ObjectId[] selectedIds = selectionResult.Value.GetObjectIds();
using (Transaction tr = db.TransactionManager.StartTransaction())
{
BlockTableRecord currentSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
// Create a set to store layers and groups of selected objects
HashSet<string> layers = new HashSet<string>();
HashSet<string> groups = new HashSet<string>();
// Collect layers and groups of selected objects
foreach (ObjectId id in selectedIds)
{
Entity entity = (Entity)tr.GetObject(id, OpenMode.ForRead);
layers.Add(entity.Layer);
// Check if the entity is part of a group
if (entity.GroupId != ObjectId.Null)
{
Group group = (Group)tr.GetObject(entity.GroupId, OpenMode.ForRead);
groups.Add(group.Name);
}
}
// Iterate through all objects in the current space
foreach (ObjectId id in currentSpace)
{
Entity entity = (Entity)tr.GetObject(id, OpenMode.ForWrite);
// Check if the entity is in the selected layers or groups
if (layers.Contains(entity.Layer) || (entity.GroupId != ObjectId.Null && groups.Contains(((Group)tr.GetObject(entity.GroupId, OpenMode.ForRead)).Name)))
{
// Make the entity visible
entity.Visible = true;
}
else
{
// Hide the entity
entity.Visible = false;
}
}
tr.Commit();
}
// Regenerate the drawing to reflect changes
doc.Editor.Regen();
}
}

using Autodesk.AutoCAD.ApplicationServices; 
using Autodesk.AutoCAD.DatabaseServices; 
using Autodesk.AutoCAD.EditorInput; 
using Autodesk.AutoCAD.Runtime; 
 
public class AdvancedIsolateObjects 
{ 
    [CommandMethod("ADV_ISOLATEOBJS")] 
    public void IsolateObjectsByLayerAndGroup() 
    { 
        Document doc = Application.DocumentManager.MdiActiveDocument; 
        Database db = doc.Database; 
        Editor ed = doc.Editor; 
 
        // Prompt the user to select objects 
        PromptSelectionResult selectionResult = ed.GetSelection(); 
        if (selectionResult.Status != PromptStatus.OK) 
            return; 
 
        // Get the selected object IDs 
        ObjectId[] selectedIds = selectionResult.Value.GetObjectIds(); 
 
        using (Transaction tr = db.TransactionManager.StartTransaction()) 
        { 
            BlockTableRecord currentSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
 
            // Create a set to store layers and groups of selected objects 
            HashSet<string> layers = new HashSet<string>(); 
            HashSet<string> groups = new HashSet<string>(); 
 
            // Collect layers and groups of selected objects 
            foreach (ObjectId id in selectedIds) 
            { 
                Entity entity = (Entity)tr.GetObject(id, OpenMode.ForRead); 
                layers.Add(entity.Layer); 
 
                // Check if the entity is part of a group 
                if (entity.GroupId != ObjectId.Null) 
                { 
                    Group group = (Group)tr.GetObject(entity.GroupId, OpenMode.ForRead); 
                    groups.Add(group.Name); 
                } 
            } 
 
            // Iterate through all objects in the current space 
            foreach (ObjectId id in currentSpace) 
            { 
                Entity entity = (Entity)tr.GetObject(id, OpenMode.ForWrite); 
 
                // Check if the entity is in the selected layers or groups 
                if (layers.Contains(entity.Layer) || (entity.GroupId != ObjectId.Null && groups.Contains(((Group)tr.GetObject(entity.GroupId, OpenMode.ForRead)).Name))) 
                { 
                    // Make the entity visible 
                    entity.Visible = true; 
                } 
                else 
                { 
                    // Hide the entity 
                    entity.Visible = false; 
                } 
            } 
 
            tr.Commit(); 
        } 
 
        // Regenerate the drawing to reflect changes 
        doc.Editor.Regen(); 
    } 
}

tigcat · 发表于 2024-9-25 18:53:22

谢谢分享！

guohq · 发表于 2024-9-25 23:40:28

[CommandMethod("ISOL")]
public static void IsolateSelection()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var selection = ed.GetSelection();
if (selection.Status != PromptStatus.OK)
return;
var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds());
using (var tr = new OpenCloseTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (ObjectId id in curSpace) //已经得到 selection.Value.GetObjectIds()了，为什么还要在curSpace遍历呢？？？
{
if (!ids.Contains(id))
{
var entity = (Entity)tr.GetObject(id, OpenMode.ForWrite);
entity.Visible = false;
}
}
tr.Commit();
}
}

[CommandMethod("ISOL")] 
        public static void IsolateSelection() 
        { 
            var doc = Application.DocumentManager.MdiActiveDocument; 
            var db = doc.Database; 
            var ed = doc.Editor; 
            var selection = ed.GetSelection(); 
            if (selection.Status != PromptStatus.OK) 
                return; 
            var ids = new HashSet<ObjectId>(selection.Value.GetObjectIds()); 
            using (var tr = new OpenCloseTransaction()) 
            { 
                var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite); 
                foreach (ObjectId id in curSpace) //已经得到 selection.Value.GetObjectIds()了，为什么还要在curSpace遍历呢？？？ 
                { 
                    if (!ids.Contains(id)) 
                    { 
                        var entity = (Entity)tr.GetObject(id, OpenMode.ForWrite); 
                        entity.Visible = false; 
                    } 
                } 
                tr.Commit(); 
            } 
        }

foreach (ObjectId id in curSpace) //已经得到 selection.Value.GetObjectIds()了，为什么还要在curSpace遍历呢？？？

d1742647821 · 发表于 2024-9-26 09:06:23

guohq 发表于 2024-9-25 23:40
foreach (ObjectId id in curSpace) //已经得到 selection.Value.GetObjectIds()了，为什么还要在cu ...

十分有道理，脱裤子代码有点多

枫叶棋语 · 发表于 2024-9-27 12:06:05

代码写的太长了吧

qq1254582201 · 发表于 2024-9-29 15:23:58

guohq 发表于 2024-9-25 23:40
foreach (ObjectId id in curSpace) //已经得到 selection.Value.GetObjectIds()了，为什么还要在cu ...

没有研究过，估计是要剔除编组吧

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【转载】C# 实现CAD的Isolate隔离对象

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