Sample for use of ViewTableRecord

[royccg]

Dear all,

thanks for this opensource.
I'm trying to realize a function about being able to focus on a specified primitive.
As follow：

    def zoom_to_object_in_cad(self, entity: Db.ObjectId):
        """zoom to object"""

        if isinstance(entity, str):
            try:
                entity = Db.ObjectId.fromOldId(int(entity, 16)) 
            except ValueError as err:
                print(f"Invalid ObjectId string: {entity}, error: {err}")

        if not isinstance(entity, Db.ObjectId):
            raise TypeError(f"Object should be a Db.ObjectId, but got {type(entity)}")

        if not entity.isValid():    
            raise ValueError(f"ObjectId {entity} is not valid.")

        zoom_object = Db.Entity(entity, Db.OpenMode.kForRead)
        #current_dwg_view = Db.ViewTableRecord(entity)  
        # Db.ViewTableRecord()
        #Ed.Core.setCurrentView(current_dwg_view)

I asked chatgpt about the way to realize the above functions with c# as follow:

public void ZoomToEntity(ObjectId entId)
{
    Document doc = Application.DocumentManager.MdiActiveDocument;
    Editor ed = doc.Editor;

    using (Transaction tr = doc.TransactionManager.StartTransaction())
    {
        Entity ent = tr.GetObject(entId, OpenMode.ForRead) as Entity;
        Extents3d ext = ent.GeometricExtents;

        Point3d center = new Point3d(
            (ext.MinPoint.X + ext.MaxPoint.X) / 2,
            (ext.MinPoint.Y + ext.MaxPoint.Y) / 2,
            (ext.MinPoint.Z + ext.MaxPoint.Z) / 2
        );

        ViewTableRecord view = ed.GetCurrentView();
        view.CenterPoint = new Point2d(center.X, center.Y);
        view.Height = ext.MaxPoint.Y - ext.MinPoint.Y;
        view.Width = ext.MaxPoint.X - ext.MinPoint.X;

        ed.SetCurrentView(view);

        tr.Commit();
    }
}

I haven't found a similar api about Ed.GetCurrentView() at the moment.

[CEXT-Dan]

Hi, depending on the context, it’s probably easier to use Ax space to do this, see if this sample works for you

import traceback
from pyrx import Rx, Ge, Gi, Db, Ap, Ed, Ax

@Ap.Command()
def doit() -> None:
    try:
        axapp = Ap.Application.acadApplication()
        
        ps, id, _ = Ed.Editor.entSel("\nSelect: ")
        if ps != Ed.PromptStatus.eOk:
            raise RuntimeError("Selection Error! {}: ".format(ps))
        
        ent = Db.Entity(id)
        ext = ent.getGeomExtents()
        
        v = ext.maxPoint() - ext.minPoint()
        axapp.zoomCenter(ext.midPoint(),v.length() )

    except Exception as err:
        traceback.print_exception(err)

edit, there's no Ed.GetCurrentView() in ARX
I'll see if I can make one

[royccg]

Thanks for Helping. The code does work.

[CEXT-Dan]

I added Ed.Core.getCurrentView(), it will be available in the next release