Hi,
To jig multiple entities, you have to use a class derived from DrawJig.
Here's a little example with two usable classes, one to move a set of entities, the other one to rotate a set entities.
public abstract class EntitiesJig : DrawJig
{
protected IEnumerable<Entity> entities;
protected Point3d basePoint;
public abstract Matrix3d Transform { get; }
public EntitiesJig(IEnumerable<Entity> entities, Point3d basePoint)
{
this.entities = entities;
this.basePoint = basePoint;
}
protected override bool WorldDraw(WorldDraw draw)
{
WorldGeometry geometry = draw.Geometry;
if (geometry != null)
{
geometry.PushModelTransform(Transform);
foreach (Entity ent in entities)
{
geometry.Draw(ent);
}
geometry.PopModelTransform();
}
return true;
}
}
public class MoveJig : EntitiesJig
{
readonly bool rubberBand;
string message;
public Point3d Point { get; private set; }
public override Matrix3d Transform =>
Matrix3d.Displacement(basePoint.GetVectorTo(Point));
public MoveJig(IEnumerable<Entity> entities, Point3d basePoint, string message, bool rubberBand = false)
: base(entities, basePoint)
{
this.message = message;
this.rubberBand = rubberBand;
}
protected override SamplerStatus Sampler(JigPrompts prompts)
{
var options = new JigPromptPointOptions(message)
{
BasePoint = basePoint,
UseBasePoint = true
};
if (rubberBand)
options.Cursor = CursorType.RubberBand;
options.UserInputControls =
UserInputControls.Accept3dCoordinates;
PromptPointResult result = prompts.AcquirePoint(options);
if (result.Value.IsEqualTo(Point))
return SamplerStatus.NoChange;
Point = result.Value;
return SamplerStatus.OK;
}
}
public class RotateJig : EntitiesJig
{
Vector3d axis;
string message;
public double Angle { get; private set; }
public override Matrix3d Transform =>
Matrix3d.Rotation(Angle, axis, basePoint);
public RotateJig(IEnumerable<Entity> entities, Point3d basePoint, Vector3d axis, string message)
: base(entities, basePoint)
{
this.axis = axis;
this.message = message;
}
protected override SamplerStatus Sampler(JigPrompts prompts)
{
var options = new JigPromptAngleOptions(message)
{
BasePoint = basePoint,
UseBasePoint = true,
Cursor = CursorType.RubberBand,
DefaultValue = 0.0,
UserInputControls =
UserInputControls.NullResponseAccepted |
UserInputControls.Accept3dCoordinates |
UserInputControls.GovernedByUCSDetect
};
PromptDoubleResult result = prompts.AcquireAngle(options);
if (result.Value == Angle)
return SamplerStatus.NoChange;
Angle = result.Value;
return SamplerStatus.OK;
}
}
An example using these classes to move and rotate a selection set.
[CommandMethod("MRS")]
public static void MoveRotateSelection()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var selection = ed.GetSelection();
if (selection.Status != PromptStatus.OK) return;
var ppr = ed.GetPoint("\nBase point: ");
if (ppr.Status != PromptStatus.OK) return;
var ucs = ed.CurrentUserCoordinateSystem;
using (var tr = db.TransactionManager.StartTransaction())
{
var entities = selection.Value
.GetObjectIds()
.Select(id => (Entity)tr.GetObject(id, OpenMode.ForWrite))
.ToList();
var moveJig = new MoveJig(entities, ppr.Value.TransformBy(ucs), "\nDestination point: ", true);
if (ed.Drag(moveJig).Status == PromptStatus.OK)
{
entities.ForEach(e => e.TransformBy(moveJig.Transform));
var rotateJig = new RotateJig(entities, moveJig.Point, ucs.CoordinateSystem3d.Zaxis, "\nRotation: ");
if (ed.Drag(rotateJig).Status == PromptStatus.OK)
{
entities.ForEach(e => e.TransformBy(rotateJig.Transform));
tr.Commit();
}
}
}
}
Accepted solution
@vkpunique a écrit :
what if drawing that i want to jig is not drawn yet. Means user will trigger my custom command enter dimension via editor , program will generate all entity using fix 0,0 base point, and all of entity will by passed to move jig.
can i do this in single transaction or i have to do multiple transactions
Here's an example adding newly created entities to the current space before dragging them with a jig.
[CommandMethod("TEST1")]
public static void Test1()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var ucs = ed.CurrentUserCoordinateSystem;
// Create some entities
var entities = new List<Entity>();
var circle = new Circle(Point3d.Origin, Vector3d.ZAxis, 10.0);
entities.Add(circle);
var line = new Line(new Point3d(-10.0, -10.0, 0.0), new Point3d(10.0, 10.0, 0.0));
entities.Add(line);
line = new Line(new Point3d(-10.0, 10.0, 0.0), new Point3d(10.0, -10.0, 0.0));
entities.Add(line);
using (var tr = db.TransactionManager.StartTransaction())
{
// Add the entities to the current space
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (var entity in entities)
{
entity.TransformBy(ucs);
curSpace.AppendEntity(entity);
tr.AddNewlyCreatedDBObject(entity, true);
}
// Drag the entities using a MoveJig instance
var jig = new MoveJig(entities, ucs.CoordinateSystem3d.Origin, "\nSpecify insertion point: ");
var result = ed.Drag(jig);
// Transform the entities if PromptResult.Status is OK
if (result.Status == PromptStatus.OK)
{
entities.ForEach(e => e.TransformBy(jig.Transform));
}
// erase them otherwise
else
{
entities.ForEach(e => e.Erase());
}
tr.Commit();
}
}
Another example which only add the newly created entities if the Jig PromptResult.Status is OK
[CommandMethod("TEST2")]
public static void Test2()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var ucs = ed.CurrentUserCoordinateSystem;
// Create some entities and add them to a List
var entities = new List<Entity>();
var circle = new Circle(Point3d.Origin, Vector3d.ZAxis, 10.0);
entities.Add(circle);
var line = new Line(new Point3d(-10.0, -10.0, 0.0), new Point3d(10.0, 10.0, 0.0));
entities.Add(line);
line = new Line(new Point3d(-10.0, 10.0, 0.0), new Point3d(10.0, -10.0, 0.0));
entities.Add(line);
entities.ForEach(e => e.TransformBy(ucs));
// Drag the entities using a MoveJig instance
var jig = new MoveJig(entities, ucs.CoordinateSystem3d.Origin, "\nSpecify insertion point: ");
var result = ed.Drag(jig);
// Add the entities to the current space if PromptResult.Status is OK
if (result.Status == PromptStatus.OK)
{
using (var tr = db.TransactionManager.StartTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (var entity in entities)
{
curSpace.AppendEntity(entity);
tr.AddNewlyCreatedDBObject(entity, true);
entity.TransformBy(jig.Transform);
}
tr.Commit();
}
}
// dispose them otherwise
else
{
entities.ForEach(e => e.Dispose());
}
}
@vkpunique a écrit :
One last question what's DisposableList Class, i've never used it before and it's not availble in .net framework. In second command i've replaced DisposableList with regular List and e.Dispose() with e.Erase()
This is a mistake: the code above uses a List<Entity> and calls the Dispose method on all entities if the PromptResult is not OK (the code above is corrected).
The DisposableList<T> class (CF below) does the same thing implicitly.
[CommandMethod("TEST2")]
public static void Test2()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
var ucs = ed.CurrentUserCoordinateSystem;
// Create some entities and add them to a List
using (var entities = new DisposableList<Entity>())
{
var circle = new Circle(Point3d.Origin, Vector3d.ZAxis, 10.0);
entities.Add(circle);
var line = new Line(new Point3d(-10.0, -10.0, 0.0), new Point3d(10.0, 10.0, 0.0));
entities.Add(line);
line = new Line(new Point3d(-10.0, 10.0, 0.0), new Point3d(10.0, -10.0, 0.0));
entities.Add(line);
entities.ForEach(e => e.TransformBy(ucs));
// Drag the entities using a MoveJig instance
var jig = new MoveJig(entities, ucs.CoordinateSystem3d.Origin, "\nSpecify insertion point: ");
var result = ed.Drag(jig);
// Add the entities to the current space if PromptResult.Status is OK
if (result.Status == PromptStatus.OK)
{
using (var tr = db.TransactionManager.StartTransaction())
{
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (var entity in entities)
{
curSpace.AppendEntity(entity);
tr.AddNewlyCreatedDBObject(entity, true);
entity.TransformBy(jig.Transform);
}
tr.Commit();
}
}
}
}
class DisposableList<T> : List<T>, IDisposable where T : IDisposable
{
public void Dispose()
{
var list = this.ToList();
Clear();
foreach (T item in list)
{
item.Dispose();
}
}
}
