1 Select the object with the Pick tool.
2 Open the Interactive Tools flyout, and click the Interactive Contour tool.
3 Drag the start handle to the center of the object.
When you can't drag the handle any further, you've reached the center of the object.
4 Move the slider to change the number of contour steps.
• Use the Contour Offset box on the Property Bar to specify the distance between contour lines. This automatically adjusts the number of contour steps.
• You can change a contour to a center contour by selecting the contour and clicking the To Center button on the Property Bar.
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