How to use the curvature tool in Illustrator CC 2017 2015 etc for amazing curved vector designs. The curvature tool in Illustrayor is found in the Illustrator toolbar near the top of the toolbar. The curvature tool is very similar to the pen tool but at the same time it does bring an ease of use of creating curves (for some) in Illustrator. To use the curvature tool, simply click the artboard and then move to another position and click again and then repeat and the curve will be displayed (though this depends on the preferences 'selection' and enable rubber band' functionality). You can repeat this with multiple points. Finish by pressing esc or change tool or clicking the start point to close the path. You can restart the curvature tool / path at any point by click one of the end points and continuing with the curve. You can close the curve by clicking the start point with the Illustrator curvature tool. You can also change the smooth to sharp corner points by double clicking the anchor points. You can use the curvature tool to create interesting wave designs. You can select points by clicking the anchor points with the curvature tool. Click anywhere else to add a point or click the point and press delete key to remove points. You can create wonderful strokes with the curvature tool and variable width profiles. You can also manipulate existing Illustrator paths (not created with the curvature tool) such as stars and circles with the curvature tool. This tutorial shows you how to use the curvature tool in Illustrator to manipulate paths and create amazing curved paths in seconds.
select the curvature tool in the Illustrator toolbar
shift mouse position and click again
shift mouse position and as you move you will see the rubber band
click again and the rubber band is replaced with the curve
repeat and press esc to escape from the curvature tool
The curvature tool can be found in the Illustrator toolbar near the top and has no options beyond the functionality of creating curved (and straight lines) unless you count a single preference in the preferences section for the 'selections' and enable rubber band functionality which is a lovely way of seeing where the curve will go as you move the cursor.
The Illustrator curvature tool can be used to create curves but it also has the ability to draw straight lines as well as corner points
select the curvature tool
set the stroke color etc as well as width profile and brush stroke (if required)
apply to the artboard by clicking at different positions to create a curved line. As you click, you will notice that instead of the usual points, you will see a bigger dot.
To escape, press the esc key and the Illustrator curvature tool will stop (or change tool)
To convert between curved point and an corner point, double click the point. To convert back to a smooth curve point, double click again. On the left you can see a thick line created using the tool and spread over the entire artboard.
Once you re-select the curvature tool in Illustrator and you have a curvature path selected, the rubber band will show your curve again from the end point last used. You can escape (esc) and then click the start of the line and then the curvature will work from there.
You can also start somewhere totally different and then head back to one of the end points and the curvature will join the two paths together (hover over the end point if not selected and a little dot will appear). On the left you can see a path where the line has been re-started after selecting the selection tool and then back to the path tool
You will find the the curvature tool is always trying to create a closed path and always seems to be heading back in that direction.
You can just hover over to the start point with the current curve (rubber band if on) and click that to close the path. On the right you can see the closed path where the curvature tool closed the path
You can quickly change a point added as a smooth / curved point
double click and the line will now have a sharp corner point. On the left you can see the curved design converted into a straight line design
You don't have to use the curvature tool to create curvesm you can simply select the tool and then double click to create a zigzag
select curvature tool
double click doucument / artboard
move to a different position, up and across and double click again to create another corner point
move further along and down and double click again in a zigzag motion
repeat for as many points you want to add
Go over all the points added by double clicking them to turn them into smooth points / curved points though avoid clicking the end points unless you want a closed path. On the right is the zigzag at the top and the converted wave design below
You can move the curve created by the curvature tool by simply going to a point and selecting the point and drag in any direction
hover over points created
click and select and drag in any direction as well as just click on the point and move along the curve to change the curvature
repeat with other points
You can also select the points with the standard tools such as the direct selection tool and move paths that way, as soon as you re-select the curvature tool it will be turned back into a path that can be manipulated and added to with that tool
Selecting them and moving them, either the with the curve or the points (along the curve) can be useful to make a smoother curve or perhaps a rougher design, really depends on what you want to achieve with the Illustrator tool
The image on the left consists of a number of paths, all are the same initially (they were all duplicates) and they have then been modified by selecting the points and moving the curve as well as the points in the curve
To add, go to the curve and avoid any existing points and just click with the tool to add a point
To delete, select that point and press the delete key
The lines on the right were all the same. The first three to the left have had a lot of different points added which has slightly modified the curves. The middle path has had a point added to the end point. The paths on the far right of the image have had points removed by selecting them and del key
The generated curve / path from the Illustrator curvature tool is a standard path, you can add a width profile to it.
select curved path
go to the width profile
change stroke width setting
add more points to the curve as required
You can use it to create all kinds of lovely brush stroke designs (and you can also add brushes to the line as well)
If you have an existing path such as a circle or brush stroke or star etc, you can just select the curvature tool and then manipulate that path with the tool. Double click the points to turn them into smooth points / curves etc as before
create path such as a star
go to the curvature tool
click on the points and move and shift and delete and add as previously detailed
You can find many additional tutorials for Illustrator such as