UCS world in VB.net

[Jozi68]

Hi All,

I'm using vb.net to write a DLL that I can load with netload.

How can I set the drawing's UCS to world in VB?

All suggestions are appreciated.

Jozi68

[Jozi68]

I would also like to change UCSFollow to 0.

Anyone?

[Jozi68]

I have heard there is a way to send a command to your drawing. Perhaps something like that could work?

[SEANT]

Coordinate systems are associated with viewports. So, if a viewport were aquired (via a transaction with Editor.ActiveViewportId, perhaps) then it’s coordinate system could be changed with Viewport.SetUcsToWorld.

[Jozi68]

I am not using viewports at the moment, but not all drawings are set to ucs world.

Surely there should be a way to change a drawing to ucs world (while in model)?

[gile]

Hi,

 

This sould work for the current viewport (C# code, I let you translate)

 

Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
ed.CurrentUserCoordinateSystem = new Matrix3d(new double[16]{
   1.0, 0.0, 0.0, 0.0,
   0.0, 1.0, 0.0, 0.0,
   0.0, 0.0, 1.0, 0.0,
   0.0, 0.0, 0.0, 1.0});

[SEANT]

I’ve got to plead guilty to giving bad advice with the Viewport.SetUcsToWorld recommendation. Quite frankly, I can’t find a scenario where that method works as advertised. If it does perform some task, it isn’t what I assumed it would be.

[Jozi68]

Thanks gile, it seems to work. Now I just need a way to make sure the user is actually in model (NOT paper).

No problem Seant, you've already helped me more than anyone else.