limits

[Anonymous]

Hi,

Limits is not changing when i move origin to other point.

is it any way to change limits when I move origin or any way to give limits relative to origin?

[Vinayv4v]

Hi,

Enter command Limits > Give the first two points (0,0) which will be the orgin.

Turn on the limits.

Right click on Grid> settings > turn of display grid beyond limits. Now check

[RobDraw]

Do you really need limits on?

I have never used limits. It was a legacy tool when I started nearly 20 years ago.

[Kent1Cooper]

What do you mean by moving the "origin?"  That could be with a different User Coordinate System or by setting the SNAPBASE System Variable.

[cadffm]

GRID is relative to UCS(fail), but LIMITS isn´t. LIMITS are exclusively oriented at the WCS

[Anonymous]

As noted LIMITS is specifically fixed to the world coordinate system.  But why are you working with limits?  Are you trying to forcibly keep components within a fixed geographical location??  That's what LIMITS does, when ON it prevents selecting points outside the defined limits.  It doesn't prevent moving or copying components outside the limits (which makes it fairly useless), it just makes it impossible to pick points out sides LIMITS.

In PS LIMITS can be used for plotting, but I prefer to define specific window points saved in a page setup.

[aghis_no]

limits have three distinct functions:

1. they inform AutoCAD about the elements in the drawing that need to be in priority in the active display memory.
   AutoCAD reads the file and uses the display memory to draw elements on screen. This memory has a limited size and cannot contain all your drawing. Elements that do not fit in the display memory are drawn on screen in a less accurate manner, for example circles and arc are displayed as polygons. If you need to display accurately a part of the drawing that is not in the display memory you need to use the “regenerate command” to regenerate the display geometry correctly. Some commands like “zoom extends” invoke the regenerate command automatically. AutoCAD, will try to put a maximum of information in the display memory but all geometry does not fit specially in the case of large complex drawings. Setting the Drawing limits is a way of indicating AutoCAD what should be, proprietarily in the display memory.  To give you an example: In the case of a very big and complex site plan that only a small part of the drawing corresponds to the site of your building, if you set your limits to the area of occupied by your building, AutoCAD will try to put all graphic elements that reside inside the limits you defined in the display memory so that you do not need to regenerate the display to see the circles and arcs drawn correctly (not as polygons). As a demonstration, you may try doing the opposite, in a complex area plan, if you draw your project far away from the limits, you will need to regenerate all the time when you zoom in or out around your project specific site.
2. By turning on the limits checking you may constraint the area you can draw by indicating points. But as said this will not affect copying, offsetting etc., this makes the limit checking less useful.
3. in Paper space, limits (that are different for each layout tab), may define plotting area. Back in time when there was no “page display” limits used to simulate the paper area.

hope it helps

[Kent1Cooper]

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aghis_no wrote:

....

   3. in Paper space, limits (that are different for each layout tab), may define plotting area. ....

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Not just in Paper space.  You can plot to the Limits in Model space, too.

I find Limits very useful, and set them up all the time for the "working area" of a drawing in Model space as well as Paper space, as described in this post.

[Anonymous]

I've been doing this for quite some time, and I've never heard anyone link the AutoCAD LIMITS function with display priorities.  

REGEN (how ever it is tripped) - resets the overall area available for realtime panning and zooming in the current viewport and it has nothing at all to do with LIMITS.  And considering that LIMITS is a 2D frame of reference with no relation to 3D, I'd say LIMITS has no capability to control much at all in a 3D view, especially display.

[TheCADWhisperer]

I have always turned limits off.

Never used them.