Define directional details in a drawing using the user coordinate system (UCS).
Tutorial resources
These downloadable resources will be used to complete this tutorial:
Transcript
00:04
The user coordinate system or UC S as we refer to it
00:08
establishes the location and orientation of
00:11
a movable Cartesian coordinate system.
00:14
The UC S is an essential tool for
00:16
many precision operations because it defines things like
00:21
the horizontal and vertical directions used for features such as Ortho
00:26
mode, polar tracking
00:27
and object snap, tracking,
00:30
the alignment and angle of the grid hatch patterns, text and dimension objects
00:36
as well as the orientation and origin
00:39
for coordinate entry and absolute reference angles.
00:43
Now let's talk about the U CS icon by default,
00:47
it appears in the lower left corner of the drawing area.
00:50
And for the current model viewport, you can see it here as a default setting.
00:57
If we go to paper space,
00:59
the paper space, UCS icon is a triangle.
01:03
As you can see here in this layout. Tab
01:07
various visibility settings for the UCS are available by typing in the UCS
01:13
icon command.
01:15
Once we press enter, you can see the different options,
01:19
you can have the icon
01:22
on or off. So for example, if you didn't want to see the icon,
01:25
you can choose off and the icon disappears,
01:29
but we can go back in and turn it back on
01:32
very easily.
01:35
Some of the other options we have
01:37
all will take your settings and turn those settings on all of your Viewport U CS icons
01:45
in paper space and model space.
01:47
We have origin
01:49
and no origin.
01:51
Let's go ahead and talk about origin first.
01:54
You'll see that it doesn't look like anything happened with the U CS icon.
01:59
However, if I were to draw a line
02:02
and have it go to zero comma zero
02:07
and then do a zoom extents.
02:11
You'll notice when I zoom out a bit, the U CS icon is actually at zero comma zero.
02:19
And if I continue to zoom out or zoom in, it stays at zero comma zero.
02:25
So if I go back into us
02:27
icon and this time, choose no origin,
02:31
I can go ahead and
02:33
erase this line. I don't need it anymore, but already look at where the ucs icon is.
02:38
It's not at an origin. So now if I do zoom extents,
02:43
it has no bearing on the zoom factor or where
02:48
I am in the drawing because I chose no origin.
00:04
The user coordinate system or UC S as we refer to it
00:08
establishes the location and orientation of
00:11
a movable Cartesian coordinate system.
00:14
The UC S is an essential tool for
00:16
many precision operations because it defines things like
00:21
the horizontal and vertical directions used for features such as Ortho
00:26
mode, polar tracking
00:27
and object snap, tracking,
00:30
the alignment and angle of the grid hatch patterns, text and dimension objects
00:36
as well as the orientation and origin
00:39
for coordinate entry and absolute reference angles.
00:43
Now let's talk about the U CS icon by default,
00:47
it appears in the lower left corner of the drawing area.
00:50
And for the current model viewport, you can see it here as a default setting.
00:57
If we go to paper space,
00:59
the paper space, UCS icon is a triangle.
01:03
As you can see here in this layout. Tab
01:07
various visibility settings for the UCS are available by typing in the UCS
01:13
icon command.
01:15
Once we press enter, you can see the different options,
01:19
you can have the icon
01:22
on or off. So for example, if you didn't want to see the icon,
01:25
you can choose off and the icon disappears,
01:29
but we can go back in and turn it back on
01:32
very easily.
01:35
Some of the other options we have
01:37
all will take your settings and turn those settings on all of your Viewport U CS icons
01:45
in paper space and model space.
01:47
We have origin
01:49
and no origin.
01:51
Let's go ahead and talk about origin first.
01:54
You'll see that it doesn't look like anything happened with the U CS icon.
01:59
However, if I were to draw a line
02:02
and have it go to zero comma zero
02:07
and then do a zoom extents.
02:11
You'll notice when I zoom out a bit, the U CS icon is actually at zero comma zero.
02:19
And if I continue to zoom out or zoom in, it stays at zero comma zero.
02:25
So if I go back into us
02:27
icon and this time, choose no origin,
02:31
I can go ahead and
02:33
erase this line. I don't need it anymore, but already look at where the ucs icon is.
02:38
It's not at an origin. So now if I do zoom extents,
02:43
it has no bearing on the zoom factor or where
02:48
I am in the drawing because I chose no origin.
