Drawing an arc based on a center point and radius

Tool(s): Circle

To draw an arc

1. Click Circle (How).
   

   Activate Circle in one of the following ways

   • Menu bar: Create Draft

   • Keyboard: CTRL+K

   • Toolbar: Basic Tools Draft flyout
   • Palette: Tools Create area in the following module(s):

   Draft

   Site Plan

2. You can apply a symbol to the start and/or end of the arc.
   

   Start and end symbols can be applied to various 2D entities.

   • Select a symbol and define its size in millimeters.
   • Select the start symbol and/or end symbol by checking the relevant box(es).
   • You can change this symbol or switch it off at any time while you are drawing
3. Click Circle based on center point.
4. Define the end point of the arc in one of the following ways:
   • Enter end angle
   • Enter end angle based on delta angle
   • Enter end angle based on arc length

     You can change this setting later.

5. Enter the center point.
6. Define the radius of the circle in one of the following ways:
   • Click a point.
   • Click an element. The circle is then placed on a tangent to the element.
   • Enter the value for the radius in the dialog line and press Enter to confirm.

     Tip: To draw a full circle, press ESC now.

7. Define the circle's starting point in one of the following ways:
   • Click a point.
   • Enter the starting angle (counter-clockwise, relative to the horizontal x axis).
8. Define the end point of the circle in one of the following ways:
   • Click the end point.
   • Click Enter end angle in the Input options and enter the end angle (counter-clockwise, relative to the horizontal x axis).
   • Click Enter end angle based on delta angle in the Input options and enter the delta angle (relative to the starting angle).
   • Click Enter end angle based on arc length in the Input options and enter the length of the arc (relative to the starting angle).

     Tip: You can undo every entry made in reverse order by clicking Back in the Input options.

     The arc is drawn.

     Example