Circle
Used to draw a circle.
You can access this tool from the following:
- Ribbon: Civil > Horizontal > Arcs split button
Use the Circle tool to draw a circle.
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Open the Civil Tools task pane to the Horizontal Geometry section then click the Circle icon.

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The Circle dialog opens.

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Checking the box next to the Radius Value field locks in the associated value.
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When you move the cursor into the View, it is accompanied by a command prompt that says, "Enter Center Point", so data point, example, left-click on the location that will serve as the center of the circle.
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The cursor is now equipped with a prompt that says, "Enter Through Point", so perform one of the following:
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On the Circle dialog, enter a Radius Value, check the box, and data point in the View; thus, a circle with radius rule is created.
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In the View, move the pointer to the desired distance from the center point then data point, thus a circle with pass-thru point rule is created.
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Manipulators
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A center move point manipulator is available
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A radius text manipulator
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A pass-thru point drag handle
Properties
To View the new element's properties, equip the Element Selection tool.
Left-click on the circle in the View then let the cursor hover over the selected element. Click the Properties icon to access rule data for the chosen element.