TransientManager CustomMove

csharp · 发表于 2015-3-7 12:57:13

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Autodesk.AutoCAD.GraphicsInterface Class

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.GraphicsInterface;
using Autodesk.AutoCAD.Runtime;
using System.Collections.Generic;
using System;
using Application = Autodesk.AutoCAD.ApplicationServices.Core.Application;
namespace CustomMove
{
public class Commands
{
[CommandMethod("MYMOVE", CommandFlags.UsePickSet)]
public static void CustomMoveCmd()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
// Start by getting the objects to move
// (will use the pickfirst set, if defined)
PromptSelectionResult psr = ed.GetSelection();
if (psr.Status != PromptStatus.OK || psr.Value.Count == 0)
return;
// Create a collection of the selected objects' IDs
var ids = new ObjectIdCollection(psr.Value.GetObjectIds());
// Ask the user to select a base point for the move
var ppr = ed.GetPoint("\nSpecify base point: ");
if (ppr.Status != PromptStatus.OK)
return;
var basePt = ppr.Value;
var curPt = basePt;
// A local delegate for our event handler so
// we can remove it at the end
PointMonitorEventHandler handler = null;
// Our transaction
var tr = doc.Database.TransactionManager.StartTransaction();
using (tr)
{
// Create our transient drawables, with associated
// graphics, from the selected objects
List<Drawable> drawables = CreateTransGraphics(tr, ids);
try
{
// Add our point monitor
// (as a delegate we have access to basePt and curPt,
// which avoids having to access global/member state)
handler = delegate(object sender, PointMonitorEventArgs e)
{
// Get the point, with "ortho" applied, if needed
Point3d pt = e.Context.RawPoint;
if (IsOrthModeOn())
pt = GetOrthoPoint(basePt, pt);
// Update our graphics and the current point
UpdateTransGraphics(drawables, curPt, pt);
curPt = pt;
};
ed.PointMonitor += handler;
// Ask for the destination, during which the point
// monitor will be updating the transient graphics
var opt = new PromptPointOptions("\nSpecify second point: ");
opt.UseBasePoint = true;
opt.BasePoint = basePt;
ppr = ed.GetPoint(opt);
// If the point was selected successfully...
if (ppr.Status == PromptStatus.OK)
{
// ... move the entities to their destination
MoveEntities(
tr, basePt,
IsOrthModeOn() ?
GetOrthoPoint(basePt, ppr.Value) :
ppr.Value,
ids
);
// And inform the user
ed.WriteMessage("\n{0} object{1} moved", ids.Count, ids.Count == 1 ? "" : "s");
}
}
catch (Autodesk.AutoCAD.Runtime.Exception ex)
{
ed.WriteMessage("\nException: {0}", ex.Message);
}
finally
{
// Clear any transient graphics
ClearTransGraphics(drawables);
// Remove the event handler
if (handler != null)
ed.PointMonitor -= handler;
tr.Commit();
tr.Dispose();
}
}
}
private static bool IsOrthModeOn()
{
// Check the value of the ORTHOMODE sysvar
object orth = Application.GetSystemVariable("ORTHOMODE");
return Convert.ToInt32(orth) > 0;
}
private static Point3d GetOrthoPoint(Point3d basePt, Point3d pt)
{
// Apply a crude orthographic mode
double x = pt.X;
double y = pt.Y;
Vector3d vec = basePt.GetVectorTo(pt);
if (Math.Abs(vec.X) >= Math.Abs(vec.Y))
y = basePt.Y;
else
x = basePt.X;
return new Point3d(x, y, 0.0);
}
private static void MoveEntities(Transaction tr, Point3d basePt, Point3d moveTo, ObjectIdCollection ids)
{
// Transform a set of entities to a new location
Matrix3d mat = Matrix3d.Displacement(basePt.GetVectorTo(moveTo));
foreach (ObjectId id in ids)
{
var ent = (Entity)tr.GetObject(id, OpenMode.ForWrite);
ent.TransformBy(mat);
}
}
private static List<Drawable> CreateTransGraphics(Transaction tr, ObjectIdCollection ids)
{
// Create our list of drawables to return
var drawables = new List<Drawable>();
foreach (ObjectId id in ids)
{
// Read each entity
var ent = (Entity)tr.GetObject(id, OpenMode.ForRead);
// Clone it, make it red & add the clone to the list
var drawable = ent.Clone() as Entity;
drawable.ColorIndex = 1;
drawables.Add(drawable);
}
// Draw each one initially
foreach (Drawable d in drawables)
{
TransientManager.CurrentTransientManager.AddTransient(
d, TransientDrawingMode.DirectShortTerm,
128, new IntegerCollection()
);
}
return drawables;
}
private static void UpdateTransGraphics(List<Drawable> drawables, Point3d curPt, Point3d moveToPt)
{
// Displace each of our drawables
Matrix3d mat = Matrix3d.Displacement(curPt.GetVectorTo(moveToPt));
// Update their graphics
foreach (Drawable d in drawables)
{
var e = d as Entity;
e.TransformBy(mat);
TransientManager.CurrentTransientManager.UpdateTransient(
d, new IntegerCollection()
);
}
}
private static void ClearTransGraphics(List<Drawable> drawables)
{
// Clear the transient graphics for our drawables
TransientManager.CurrentTransientManager.EraseTransients(
TransientDrawingMode.DirectShortTerm,
128, new IntegerCollection()
);
// Dispose of them and clear the list
foreach (Drawable d in drawables)
{
d.Dispose();
}
drawables.Clear();
}
}
}

using Autodesk.AutoCAD.ApplicationServices; 
using Autodesk.AutoCAD.DatabaseServices; 
using Autodesk.AutoCAD.EditorInput; 
using Autodesk.AutoCAD.Geometry; 
using Autodesk.AutoCAD.GraphicsInterface; 
using Autodesk.AutoCAD.Runtime; 
using System.Collections.Generic; 
using System; 
using Application = Autodesk.AutoCAD.ApplicationServices.Core.Application; 
 
namespace CustomMove 
{ 
    public class Commands 
    { 
        [CommandMethod("MYMOVE", CommandFlags.UsePickSet)] 
        public static void CustomMoveCmd() 
        { 
            Document doc = Application.DocumentManager.MdiActiveDocument; 
            Editor ed = doc.Editor; 
 
            // Start by getting the objects to move 
            // (will use the pickfirst set, if defined) 
 
            PromptSelectionResult psr = ed.GetSelection(); 
            if (psr.Status != PromptStatus.OK || psr.Value.Count == 0) 
                return; 
 
            // Create a collection of the selected objects' IDs 
 
            var ids = new ObjectIdCollection(psr.Value.GetObjectIds()); 
 
            // Ask the user to select a base point for the move 
            var ppr = ed.GetPoint("\nSpecify base point: "); 
            if (ppr.Status != PromptStatus.OK) 
                return; 
 
            var basePt = ppr.Value; 
            var curPt = basePt; 
 
            // A local delegate for our event handler so 
            // we can remove it at the end 
 
            PointMonitorEventHandler handler = null; 
 
            // Our transaction 
            var tr = doc.Database.TransactionManager.StartTransaction(); 
            using (tr) 
            { 
                // Create our transient drawables, with associated 
                // graphics, from the selected objects 
 
                List<Drawable> drawables = CreateTransGraphics(tr, ids); 
                try 
                { 
 
                    // Add our point monitor 
                    // (as a delegate we have access to basePt and curPt, 
                    //  which avoids having to access global/member state) 
 
                    handler = delegate(object sender, PointMonitorEventArgs e) 
                      { 
                          // Get the point, with "ortho" applied, if needed 
                          Point3d pt = e.Context.RawPoint; 
                          if (IsOrthModeOn()) 
                              pt = GetOrthoPoint(basePt, pt); 
 
                          // Update our graphics and the current point 
                          UpdateTransGraphics(drawables, curPt, pt); 
                          curPt = pt; 
                      }; 
 
                    ed.PointMonitor += handler; 
 
                    // Ask for the destination, during which the point 
                    // monitor will be updating the transient graphics 
 
                    var opt = new PromptPointOptions("\nSpecify second point: "); 
                    opt.UseBasePoint = true; 
                    opt.BasePoint = basePt; 
                    ppr = ed.GetPoint(opt); 
 
                    // If the point was selected successfully... 
 
                    if (ppr.Status == PromptStatus.OK) 
                    { 
                        // ... move the entities to their destination 
                        MoveEntities( 
                          tr, basePt, 
                          IsOrthModeOn() ? 
                            GetOrthoPoint(basePt, ppr.Value) : 
                            ppr.Value, 
                          ids 
                        ); 
 
                        // And inform the user 
 
                        ed.WriteMessage("\n{0} object{1} moved", ids.Count, ids.Count == 1 ? "" : "s"); 
                    } 
                } 
                catch (Autodesk.AutoCAD.Runtime.Exception ex) 
                { 
                    ed.WriteMessage("\nException: {0}", ex.Message); 
                } 
                finally 
                { 
                    // Clear any transient graphics 
                    ClearTransGraphics(drawables); 
                    // Remove the event handler 
                    if (handler != null) 
                        ed.PointMonitor -= handler; 
                    tr.Commit(); 
                    tr.Dispose(); 
                } 
            } 
        } 
 
        private static bool IsOrthModeOn() 
        { 
            // Check the value of the ORTHOMODE sysvar 
            object orth = Application.GetSystemVariable("ORTHOMODE"); 
            return Convert.ToInt32(orth) > 0; 
        } 
 
        private static Point3d GetOrthoPoint(Point3d basePt, Point3d pt) 
        { 
            // Apply a crude orthographic mode 
            double x = pt.X; 
            double y = pt.Y; 
            Vector3d vec = basePt.GetVectorTo(pt); 
            if (Math.Abs(vec.X) >= Math.Abs(vec.Y)) 
                y = basePt.Y; 
            else 
                x = basePt.X; 
            return new Point3d(x, y, 0.0); 
        } 
 
        private static void MoveEntities(Transaction tr, Point3d basePt, Point3d moveTo, ObjectIdCollection ids) 
        { 
            // Transform a set of entities to a new location 
            Matrix3d mat = Matrix3d.Displacement(basePt.GetVectorTo(moveTo)); 
            foreach (ObjectId id in ids) 
            { 
                var ent = (Entity)tr.GetObject(id, OpenMode.ForWrite); 
                ent.TransformBy(mat); 
            } 
        } 
 
        private static List<Drawable> CreateTransGraphics(Transaction tr, ObjectIdCollection ids) 
        { 
            // Create our list of drawables to return 
            var drawables = new List<Drawable>(); 
            foreach (ObjectId id in ids) 
            { 
                // Read each entity 
                var ent = (Entity)tr.GetObject(id, OpenMode.ForRead); 
                // Clone it, make it red & add the clone to the list 
                var drawable = ent.Clone() as Entity; 
                drawable.ColorIndex = 1; 
                drawables.Add(drawable); 
            } 
            // Draw each one initially 
 
            foreach (Drawable d in drawables) 
            { 
                TransientManager.CurrentTransientManager.AddTransient( 
                  d, TransientDrawingMode.DirectShortTerm, 
                  128, new IntegerCollection() 
                ); 
            } 
            return drawables; 
        } 
 
        private static void UpdateTransGraphics(List<Drawable> drawables, Point3d curPt, Point3d moveToPt) 
        { 
            // Displace each of our drawables 
            Matrix3d mat = Matrix3d.Displacement(curPt.GetVectorTo(moveToPt)); 
            // Update their graphics 
            foreach (Drawable d in drawables) 
            { 
                var e = d as Entity; 
                e.TransformBy(mat); 
                TransientManager.CurrentTransientManager.UpdateTransient( 
                  d, new IntegerCollection() 
                ); 
            } 
        } 
        private static void ClearTransGraphics(List<Drawable> drawables) 
        { 
            // Clear the transient graphics for our drawables 
            TransientManager.CurrentTransientManager.EraseTransients( 
              TransientDrawingMode.DirectShortTerm, 
              128, new IntegerCollection() 
            ); 
            // Dispose of them and clear the list 
            foreach (Drawable d in drawables) 
            { 
                d.Dispose(); 
            } 
            drawables.Clear(); 
        } 
    } 
}

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[分享] TransientManager CustomMove

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