How to Make Wavelengths in Illustrator

Convert lines into waves using Adobe Illustrator's "Zig Zag" effect.

Although it’s not the most obvious tool for creating wavelengths, the "Zig Zag" effect in Adobe Illustrator contains an option that allows you to simulate smooth curves creating a wave effect. In addition, it allows you to specify the maximum height and the quantity of crests and troughs spread throughout the line. Once you’ve created the wavelength, editing the effect remains live through the "Appearance" panel until you expand the appearance to integrate the wavelength with your illustration.

Instructions

1. Select the “Line” tool from the "Tools" panel.

2. Click in the artboard where you want the wavelength and the wave’s center line to begin. Hold down the “Shift” key and drag to create a horizontal line the desired distance for the wave.

3. Click the “Effects” menu, hover over “Distort & Transform” and select “Zig Zag.”

4. Click the “Smooth” radial button.

5. Click the “Preview” check box.

6. Enter the desired amplitude, or height, for the wavelength in the “Size” box.

7. Enter “1” in the “Ridges per segment” box to create a single wavelength. Enter increments of odd numbers to create additional wavelengths. For example, enter “3” to create two wavelengths, “5” to create three wavelengths and so on.

8. Click “OK.” Illustrator converts the line into the specified number of wavelengths that begin at a crest of the wave.

9. Click the “Object” menu, hover over “Transform” and select “Reflect.” Click the “Vertical” radial button to reverse the beginning of the wavelength to a trough of the wave.

10. Click the “Object” menu and select “Expand Appearance” to convert the wavelengths into an editable path.

References

• RobCubbon: Designing Waves and Wavey Lines in Illustrator
• Veerle's Blog: 4 Simple Shapes in Illustrator
• Zonal and Education.com: Parts of a Wave