- All right, so here we are looking at
the final version of the artwork.
And I want you to see how the smoke ends in a spiral.
That spiral is a little tricky to create,
which is why we're going to establish another custom guide,
this time using the Polar Grid Tool.
So I'll go ahead and switch to
my good old document in progress here.
And I'll select the Polar Grid Tool,
either from the end of this floating toolbar,
or you can click and hold on
what is now the Rectangular Grid Tool.
And select the Polar Grid Tool from
the bottom of the fly out menu.
And notice what it does,
if I go ahead and drag with the tool,
you can see that it creates a series of concentric circles
with these lines emanating out from the center.
So it's a kind of sonar pattern, if you will.
Now notice, I'll go ahead and get rid of that guy,
I can make something that's short and squat,
or something that's tall and skinny.
If I press the shift key, I'm going to constrain
all the shapes to perfect circles.
If I press and hold the alt key,
or the option key on the Mac,
then I'm going to go ahead and draw the shape
from the center outward.
So the same stuff we've seen before.
What's most interesting about this tool
is what you can do with the up and down arrow keys.
So if I press the up arrow key,
I'm going to add concentric circles.
If I press the down arrow key,
I'm going to get rid of them.
If I press the right arrow key,
I'll add these emanating lines.
And if I press the left arrow key,
I will reduce their number.
All right, so once again,
you may find yourself drawing with this tool,
but it's more commonly used to create custom guides.
So I'll go ahead and undo the creation of that shape.
I'll turn on the Guides Layer so that
we can see what's going on.
And again, you just do that, by the way,
by clicking in this empty column right there
to bring back the eyeball.
And then click on the Guides Layer to make it active.
All right, now let's scroll over
a little bit by spacebar dragging.
And I'll ctrl + spacebar click,
or cmd + spacebar click on the Mac,
in order to zoom in.
And I'm going to drag from
the upper left corner of the art board,
down into the right, until I snap to
that horizontal guideline like so.
All right, now we don't need any of these emanating lines,
so I'm going to press the left arrow key
until they completely go away, like so.
And now, I want a series of five concentric circles.
It looks like I have a total of six.
So I'm going to press the down arrow key
in order to create that effect there.
And just to confirm, I've got one, two,
three, four, five of these concentric circles.
And now I could release,
again if you're having problems with this,
just go ahead and release after
you snap to that guide, like so.
And then get rid of those paths,
by pressing the Backspace key,
or the Delete key on the Mac.
And then just click in the upper left corner
of your document to bring up
the Polar Grid Options dialogue box.
Make sure that we're creating the shape
from the top left corner.
You want your Concentric Dividers to be set to 4,
and your Radial Dividers to be set to 0.
And we want the Width value to match the Height value.
So notice that the Height value is 336 points.
And we know that's right because
we snapped into alignment with the horizontal guide.
But I didn't have you press the Shift key,
so as a result, the Width value is off.
Let's just go ahead and match the Height value
by entering 336 points.
And then just click OK to create those concentric circles.
And now what we want to do is convert them to guidelines
by going up to the View menu,
choosing Guides, and choosing Make Guides.
And you'll end up with this effect here,
at which point you can go ahead and press
ctrl + 0, or cmd + 0 on the Mac,
to center your zoom.
And now we have these custom guides
that will help us draw an exacting spiral
in the very next movie.