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- [Voiceover] In this movie,
I'll show you how to trace

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a piece of artwork using
nothing but uniform strokes.

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And you can see here that
the effect are pretty great.

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The thing is, it's a
more intensive process

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for Illustrator so it takes more time.

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So this piece of artwork happen
to start as a pencil sketch

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that I did with my youngest son, Sam.

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And then I took it into Photoshop
and firmed up the lines.

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Alright, so here's how it works:

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Step one is to go to the file menu

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and choose the new command, or of course,

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you can press Ctrl+N,
or command+N on the Mac.

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And I once again started
with a basic RGB document

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and I went in, switched the
orientation to portrait,

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and clicked OK.

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Alright, next step is
to go to the file menu,

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and choose the place command

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or press Crt+Shift+P or
Command+Shift+P on a Mac.

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And then, if you're working along with me,

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go ahead and locate that
scanned pencil sketch,

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and click the Place button.

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And then, click inside
the document window,

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don't drag, just click,

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in order to place that
image on the art board.

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Alright, next I'm going to go ahead

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and switch to the art board tool,

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and as you can see here,

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I've switched back to the
single column tool box

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just to take up less room on screen.

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And now, assuming that your
smart guides are turned on,

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go ahead and drag the corners
until they snap into alignment

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with the corner of the artwork

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and then press the Escape key
to exit the art work mode.

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Alright, now I'm going
to go ahead and zoom in

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on my artwork quite a
bit so I can keep track

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of the top portion of this document.

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And I'll go up to the image trace button,

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and simply click on it
to start things off.

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And if you get that warning saying

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there's too much resolution,
just go ahead and click, OK

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in order to ignore that dreadful advice.

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In a few moments later,

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Illustrator will work its
default magic on the image.

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Alright, now what we want to do is

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bring up the Image Trace panel,

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which you can do by clicking on this

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Image Trace icon up here
in the Control panel.

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If necessary, go ahead and
twirl open the Advance Settings,

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like so, and for now, turn
off the preview check box.

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And the reason is,

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I've already explained
how these options work

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and I just want to dial in a bunch of them

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that happen to work well
for this particular image.

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So, I'll start by taking
the threshold value

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all the way up to 230 and that way,

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we're tracing more of the
artwork instead of less.

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And I'll Tab my way
down to the Noise value,

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and take it down to just five pixels.

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Next, you want to turn
off Snap Curves to Lines,

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and turn on Ignore White so
that we're going to end up

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tracing just black and not white.

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And then finally, turn
off the Fills check box,

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and what that's going to do
is force Strokes to turn on.

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You can trace both filled and
stroked paths if you like,

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but that's not really the
effect we're looking for.

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So just go ahead and turn
off the Fills check box.

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And then, click on the Trace button.

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That's an alternative to the
Preview check box by the way.

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An alternative way to
at least invoke a trace.

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And a few moments later, you should see

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a bunch of trace strokes on screen.

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If Illustrator freaks out a
little bit in the mean time,

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don't worry about it.

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It shouldn't crash, it
should hang in there,

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but you never know.

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Again, this is a complex
process for the program.

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Alight, now given the default settings,

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we have a ton of gaps in the illustration

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and that's because of this
Stroke option right here.

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And notice it's telling us
the maximum width and pixels

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that will be recognized and
converted to strokes paths.

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So in other words, the bigger the value,

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the fewer gaps you'll get.

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But you don't want to
take the value too high,

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because that will result in longer delays.

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So what I recommend is you
move in kinda baby steps

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and so what I'm going to do is

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take the Stroke Value up to 20 pixels

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and then press the Enter key
or the Return key on the Mac

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to invoke that change.

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And notice the Preview
check box is back on

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so in a few moments, we should
see a progress bar or two.

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If it just seems like
Illustrator's ignoring you,

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just hang in there and wait a moment

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and notice I never did see a progress bar

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but Illustrator did go ahead
and complete the trace.

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Now what we want to do is check things

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to make sure everything
looks the way it should

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and you should see very few,
if any gaps inside the artwork.

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In particular, this little pocket pen

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should be traced in its entirety.

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And in my case everything
looks pretty darn good.

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Now one of the things about
auto-tracing stroked artwork

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is you cannot control the line weight

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until you expand the path outlines.

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So I'm going to go ahead and
close the image Trace panel

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and I'm going to make
some modifications here

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inside the Layers panel by
clicking on a fly-out menu icon,

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choosing Panel Options,
then selecting Other,

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and changing that value to 70 pixels.

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And then I'll just go ahead
and rename the layer Tracing

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and twirl it open as well.

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Now, we want to keep the
original traced artwork

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we don't want to lose it.

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So what you can do is copy and
paste in front, if you like.

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But my experience is that Illustrator,

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as often as not when you
copy this piece of artwork

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will crash, at least on this machine.

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So, an alternate to using
the Clipboard at all

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is to press the Alt key or
the Option key on the Mac

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and drag this item, like so,
just drag it up a little bit.

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And so that's an Alt+drag
or an Option+drag

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and that'll create a copy of it

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without going to the Clipboard,

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which is a lot easier on Illustrator,

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and possibly easier on
your nerves as well.

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Alright, now I'm going
to turn off the original.

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And then I'll go up the the Control Panel

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and click on the Expand button

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in order to scan this special
object to Static Path Outlines

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and then I'll change the
line wight to 1.2 points

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in order to produce this effect here.

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And if you get a little
warning saying that

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Illustrator can't do it,

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just click OK and it should do it anyway.

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Alright, now we want to simplify the art.

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So go ahead and press Ctrl+H
or Command+H on the Mac

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to hide the anchor points.

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And then go the the Object menu,

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choose Path, and choose Simplify.

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And this one really responds
poorly to the default settings

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This sun is a complete mess
and this moon is a disaster.

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So what I suggest you do

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is once again take this Curve
Position value up to 100%,

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then press the Tab key and notice,

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assuming the preview
check box is turned on,

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that the number of anchor points goes up,

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which is not what we want,

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so go ahead and click in
that Curved Position value

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and press the Down arrow key
in order to reduce the value

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until the artwork starts to change

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more than you're comfortable with,

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which once again happens for me at 97%

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so I'll press the Up arrow key
to take that value up to 98%

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but we're still losing more
than 1000 anchor points

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which is great.

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And then I just experimented
with this Angle Threshold value

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but notice how the moon's hand
changes; his elbow as well.

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When I take that value up to 100 degrees,

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we get a little more bending action.

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And incidental, you can take
this value all the way up

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to 180 degrees if you
like, but to my mind,

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that doesn't create
exactly the right effect.

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So, once again, I'll
take it to 100 degrees

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You can see we're still dropping

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more than 1000 anchor points,

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at which point I'll go ahead and click OK

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to apply that change.

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And that's how you trace
a piece of scanned artwork

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using nothing but Uniform
Strokes, here inside Illustrator.

