- In this movie, I'll introduce you to the Scissors Tool,
which allows you to cut one line exactly along another,
which will help us to create this second smoke stack
that is precisely 10 points away from this slanting roof.
I'll go ahead and switch over to my document in progress,
and then, I'll press the v key, in order to switch
to the black arrow tool.
And I'm gonna marquee these three lines
that make up the smoke stack.
And notice that I'm only partially marqueeing them.
When you're using the black arrow tool,
as long as the line falls at least somewhat
inside the marquee, it becomes entirely selected.
Now, I'll go ahead and drag any one of these segments
over to the left, like so, and I'll press the shift key
in order to constrain the angle of my drag
to exactly horizontal.
And at some point, I should see the word intersect
right there with a horizontal line.
And what that's showing me is that I am aligning
the center of my selection, that's that tiny little green x,
with that angled line that represents the top
of the factory roof.
At which point, I'll go ahead and release to move the path,
which is not what I wanted to do.
And that's a mistake, by the way.
The remedy is to press control + z,
or command + z on the Mac, to undo that move,
and then try again, while not only pressing the shift key
during the drag, but I also need to
press and hold the alt key, or the option key on the Mac,
so that I get that double arrow head cursor,
which allows me to create a duplicate of those lines
on the fly.
Alright, now what I wanna do is
cut these vertical lines along the slanting edge
of the roof, and I'm gonna do that using the Scissors Tool.
And you get the Scissors Tool by clicking and holding
on the eraser, which is located below the pencil,
right there, and that'll bring up a fly-out menu
of three tools that you can see here.
And then, I'll select the best and oldest of them all,
which is the Scissors Tool.
And notice that it has a keyboard shortcut,
in case you're interested, of just plain old c.
Alright, now, I'm going to hover my cursor
until I see the intersection of these two lines.
That is to say, the vertical line right there
and this slanting line, as well.
And I'm going to click in order to cut that vertical line.
And now, I'll move over to this location
and click again to cut this vertical line.
And because I could see all those lines intersecting,
I know that I hit the right location.
And that's another wonderful function of Smart Guides.
Alright, now I'm gonna switch back to the black arrow tool
by pressing the v key.
And then, I'll go ahead and partially marquee
these bottom portions of the vertical lines,
which are now the lines that we don't want.
And I'll press the backspace key,
or the delete key on the Mac, to get rid of them.
And then, I'll press the a key to switch
to the white arrow tool, and I'll select this anchor point
right there, the one at the bottom
of the first vertical line, and I will shift-click
on the second one.
So, any time you shift-click with an arrow tool,
you're going to add or delete from the selection.
So, in my case, I just added this anchor point
to the selection.
If I wanted to remove it from the selection,
I would shift-click on it again,
and notice that deselects it.
So, in other words, shift-clicking is a toggle.
Alright, I'm gonna shift-click again,
so that both of these points are selected.
And now, I wanna move them upwards 10 points.
And I was telling you that you can bring up
the Move dialog box anytime one of the arrow tools
is selected, just by pressing the enter key here on the PC,
or the return key on the Mac.
And that's gonna replay my last move,
which was apparently 169.5 points to the left,
as indicated by that negative sign.
And that was that move that allowed us
to copy the first smoke stack to create the second one.
But while it worked beautifully the first time around,
it's not helping us move these particular anchor points.
So, what I'm gonna do is change the horizontal value to 0,
in order to put those guys back, and then,
in order to move the points up 10 points,
I'm gonna change the vertical value to -10,
and press the tab key in order to see that change happen,
assuming that your Preview check box is turned on.
At which point, you can go ahead and click OK,
in order to accept that change.
And that is, among other things,
how you use the Scissors Tool to cut one line
exactly along another, here inside Illustrator.