TheSwamp

Code Red => .NET => Topic started by: guohq on March 04, 2020, 10:15:34 PM

Title: how to draw a parmanent vector ?
Post by: guohq on March 04, 2020, 10:15:34 PM

I can draw a vector by editor.DrawVector ,but the vector will be cleared when the view is update. how can I draw a  parmanent vector?

Title: Re: how to draw a parmanent vector ?
Post by: MickD on March 04, 2020, 10:38:28 PM

maybe this -> https://www.theswamp.org/index.php?topic=25653.0

or draw a line?
:)

Title: Re: how to draw a parmanent vector ?
Post by: guohq on March 05, 2020, 12:47:08 AM

Editor.DrawVector has the same effect as Editor.DrawVectors. Editor.DrawVector can  only darw one vector at a time. Editor.DrawVectors can draw multiple vectors at once.

Title: Re: how to draw a parmanent vector ?
Post by: gile on March 05, 2020, 02:02:36 AM

Hi,

As far as I know, this is the way AutoCAD 'vectors' behave. What about using Line entities instead ?

Title: Re: how to draw a parmanent vector ?
Post by: Maxence on March 05, 2020, 04:38:46 AM

You need to use transient graphics: https://adndevblog.typepad.com/autocad/2012/04/using-transient-graphics.html

Title: Re: how to draw a parmanent vector ?
Post by: guohq on March 05, 2020, 06:40:26 AM

Using TransientManager.AddTransient method is much better than Editor.DrawVector.It would be great if it doesn't disappear when using Regen.