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- [Voiceover] In this movie, I'll show you

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how to change the Roundness
of the Corners of a rectangle.

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And we'll do so dynamically,

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so you change your mind any time you like.

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I'm gonna start off by zooming
in on this handle like so.

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And then, I'll click on it to select it

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with the Black Arrow Tool.

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And now, assuming you're working in

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the most recent version of the software,

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go up to the View menu

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and choose Show Bounding Box
to turn on the Bounding Box

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so that you can see your standard handles,

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which of course you can drag
in order to scale the shape.

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That's not what I wanna
do at all, however.

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Instead, I wanna take advantage

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of these Round Corner
widgets, right there.

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So notice this circle.

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If I go ahead and drag it inward,

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I will change the Roundness
of the rectangle on the fly.

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And because I have my
Smart Guides turned on,

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I can see exactly how much
Roundness I'm applying

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in that Heads Up Display.

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Now, what's great about this
is that it's a dynamic effect.

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So if I were to click off the
shape in order to deselect it,

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and then click on the shape
again, in order to select it,

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I will still have access to those widgets.

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And so if you drag it all the
way back up to the corner,

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so that the R Value is 0, like so,

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even though it's appearing to
pop into a different location,

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I'm still going to restore those corners

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to their full sharpness.

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All right, but what I wanna
do is take this guy out

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until the Roundness Value
right there reads 6 points

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is what I'm looking for, after which,

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I'll just go ahead and
release to accept that change.

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All right, now I'm gonna
zoom in a little bit here.

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And I want you to see how you can

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change the Roundness Value numerically.

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So I'm gonna go ahead and
select this path right here.

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And I'm not even seeing
its Round Corner widgets,

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so I'm gonna have to zoom farther in.

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But it still might be
difficult for me to apply

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2 points of Roundness, which
is what I'm looking for.

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And so, if you're having
problems at any point in time,

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just go ahead and double-click
on one of those widgets

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to open the Transform panel.

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Now you should see the entire panel.

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If you don't, if some part of it's hidden,

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then click on this double-arrow icon

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to the left of the word Transform

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as many times as it takes
to reinstate the full panel,

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like so, and then notice we
have these Round Corner controls

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each of which affects a different corner.

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Notice that they're linked
together by default,

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so if I were to change one
of these values to 2 points

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and then press the Tab key,

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they're all going to change to 2 points,

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which works fine for
this particular shape.

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All right, I'm gonna go ahead

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and hide that panel for a moment,

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and then, I'll scroll over

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so that I can see the opposite rectangle.

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And we're gonna modify
it in just a moment.

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But first, I wanna duplicate this guy

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by pressing the Enter key,
or the Return key on the Mac,

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which because the Black
Arrow Tool is active,

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brings up the Move dialog box.

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And I'm gonna change this
Horizontal Value to 12,

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and I'll leave the
Vertical Value set to zero.

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And rather than moving the
shape, I wanna copy it.

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So I'll click the Copy button,

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or I can press Alt + Enter here on a PC,

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or Opt + Return on a Mac.

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All right, now I'm gonna
create a copy of this guy

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by dragging it from the right side,

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not from the handle, by the way,

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but from one of the two right sides

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above and below the handle,

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and I'll go ahead and
drag it all the way over

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so that it snaps into
alignment with the left edge

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of that other thin rectangle.

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And I'm pressing the
Shift key, by the way,

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to constrain the angle of my
drag to exactly horizontal.

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I'm also gonna press the Alt key,

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or the Opt key on the Mac,

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so I have both Shift and Alt
keys down here on the PC,

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that Shift + Opt on the Mac,

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so that I'm seeing that double-arrowhead,

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which tells me that I'm gonna
make copy of this shape,

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like so, and then I'll press
the left arrow key four times,

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one, two, three, four, like so,

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in order to scoot that shape
a little bit to the left.

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All right, now I wanna grab this guy,

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and I'm gonna zoom in even father in.

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And again, I wanna round
this guy to 2 points

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so I'll just go ahead and double-click

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on any of these Round Corner widgets,

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and I will change this
guy to 2 points, like so.

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Now something I want you to notice,

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if I zoom in even farther,

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just want you to see this really quick,

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is that we have the option of
changing the Style of Corner,

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and you do that by clicking on
this little icon right there,

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and changing it from rounding
outward to rounding inward,

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like so, so that's totally an option,

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and then you can modify
the Roundness on the fly

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by dragging one of these circular widgets.

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But notice as I do, that the other corner

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is independently rounded,

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so each one of these Corner controls

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affects a single Round Corner,

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even if they're all linked together.

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Your other option is to apply a chamfer,

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which looks like this,

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so it's just gonna be a straight bevel,

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and that's another thing that
you can modify on the fly.

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So you can scoot that bevel
outward or inward, to taste.

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All right, but I really want

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to stick with an outwardly rounded corner,

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and I want all these guys to be 2 points,

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but notice that we have a problem here.

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This inner edge right here
should not be rounding.

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I want it to be straight.

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And so, I'm gonna turn
off the Chain right there,

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the Link control, and I'm
gonna change both of these

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right hand corners to 0,

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which gives me exactly the
effect I'm looking for.

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All right, I'm gonna
zoom out here like so,

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and I actually wanna zoom
a little farther out,

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so that I can take in this black handle,

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and as you may recall from
our final illustration,

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I'm looking for this end of the handle

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to round significantly outward,

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much more than the other side.

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And that's gonna create a
kind of forced perspective.

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And so what we really wanna
do is modify these two

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left hand corners independently
of the right ones.

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And I wanna do so just by dragging.

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And we know that you can just double-click

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on one of these Corners,

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and because they're no
longer linked to each other,

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I could just change this guy
to something like 12 points,

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let's say, and press the Enter key,

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or the Return key on a
Mac, to apply that change.

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But then notice that if I start dragging,

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all of the corners are
rounding, relative to this one.

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So, this top left corner
is still rounding more

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than the other three, but
they are rounding together.

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That's not really what I want,
so I'll press Control + Z,

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or Command + Z on a
Mac, a couple of times,

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in order to Undo that change.

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And I'll go ahead and switch
from the Black Arrow Tool

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to the White Arrow, which I
can get by pressing the a key.

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And a great thing about the White Arrow

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is that it allows you

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to modify different corners
independently of each other.

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And we're gonna see in a future chapter

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just how incredibly useful that can be.

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But for now, I'm just gonna go ahead

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and marquee these two corners,

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so that they're selected
independently of the other two,

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and I'll go ahead and
drag this widget down

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and you can see I am now only affecting

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the left hand corners.

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And I'm gonna drag it as far as it goes.

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And notice, I can't go any
farther than 32 points,

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which makes absolute sense
given that as you may recall,

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and I'll bring up the Transform
panel just so we can see,

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that the shape is 64 points tall.

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And so half of 64 is 32,

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and so you can only Round the Corner

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to half the width or the height,

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whatever is the smallest of a given shape.

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At which point, I'll go ahead
and hide the Transform panel,

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I'll click off the shape to deselect it

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and I'll press Ctrl + 0,
or Command + 0 on the Mac

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to center my zoom.

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And that's how you Round
the Corners of a rectangle,

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whether you draw it
with the Rectangle Tool

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or the neighboring Rounded Rectangle Tool,

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it doesn't matter at all.

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And you can do so entirely dynamically

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so you can change your
mind any time you like.