QCad - Construction - Circles
Author: Andrew Mustun

QCad User Reference Manual
|  |  | ## Circles ### Circle with Center and Point CAD Toolbar: Menu: Draw - Circle - Center, Point Command: ? Hotkey: ci Description: A circle with a given center and a point on the circle line can be created using this tool. Procedure: Set the center of the circle using the mouse or enter a co-ordinate in the command line. Define the radius by clicking a point on the circle line or by entering a co-ordinate into the command line. You may also enter the radius directly in the command line. ### Circle with Center and Radius CAD Toolbar: Menu: Draw - Circle - Center, Radius Command: ? Description: This tool lets you create circles with a given center and radius. Procedure: Enter the radius in the option toolbar or use the command `radius` , `rad` or `r` to enter the radius on the command line. Set the center of the circle using the mouse or enter a co-ordinate in the command line. ### Circle with 2 Points CAD Toolbar: Menu: Draw - Circle - 2 Points Command: ? Description: Draws circles with two diametrically opposed points. Procedure: Set the first point using the mouse or enter a co-ordinate in the command line. Set the second point. ### Circle with 3 Points CAD Toolbar: Menu: Draw - Circle - 3 Points Command: ? Description: If you know any three points on the circle line of a circle, you can use this tool to create circles. Procedure: Set the first point using the mouse or enter a co-ordinate in the command line. Set the second point. Set the third point. ### Concentric Circle CAD Toolbar: Menu: Draw - Circle - Parallel Command: ? Options Toolbar: Description: With this tool you can create parallels to existing line, arc and circle entities. Procedure: Enter the distance of the parallel from the original entity into the options toolbar shown at the top or enter `distance` , `dist` or `d` in the command line, followed by the distance. Click the entity to which you want to create a parallel. The parallel is created on the side on which the mouse cursor is located while selecting the entity.
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