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• When you draw a circle, you can select two points in the viewport or on a workplane to set the line which connects the two points as a mirror. For more information, see
Set a mirror for 2D geometrical elements.
• For information about highlighting intersecting elements, see
Draw a line or an arc.
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![]() | To change from the radius mode to the diameter mode, • Click ![]() |
![]() | When you change from the radius mode to the diameter mode , the following circle commands change: • On the Modeling tab, in the Draw group, the Circle ![]() ![]() • On the Modeling tab, in the Draw group, the Construction Circle ![]() ![]() • On the Modeling tab, in the Modify 2D group, ![]() ![]() |
![]() | In the diameter mode, the visual feedback shows the diameter of the circle as shown in the image below. To switch to diameter mode, see
Change 2D CoPilot settings. ![]() |
![]() | • To set the radius of a circle in the radius mode, press SPACEBAR, click ![]() • To set the diameter of a circle in the diameter mode, press SPACEBAR, click ![]() |
![]() | You can use the Linear Bisector or the Angular Bisector command (on-the-fly) when you draw a circle; for example, to find the midpoint between two circles. • To use a linear bisector: ◦ Press X or, ◦ Right-click and choose Linear Bisector on the context menu or, ◦ Press SPACEBAR or the assigned key and click ![]() • To use an angular bisector: ◦ Press Y or, ◦ Right-click and choose Angular Bisector on the context menu or, ◦ Press SPACEBAR or the assigned key and click ![]() |
![]() | You can use the Line Between 2 Points command (on-the-fly) to create a temporary line and then use the midpoint of this line as a reference to create circles. To create a temporary reference line between two points: a. Press M, or right-click in the viewport and choose Line Between 2 Points on the context menu. Alternatively, press SPACEBAR or the assigned key and click ![]() b. Select any two points on the viewport. For example, you can select two opposite vertices of a rectangle. See
Example: Drawing a rectangle using a line between two points as a reference. |
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![]() | • Ensure that Automatic Tangent Circle by 3 Points is selected in
2D CoPilot Settings. By default, Automatic Tangent Circle by 3 Points is selected. • If you select the first element as tangent reference, the circle created has a tangent constraint and remains tangent to this element. |
![]() | • As you move the cursor over other 2D elements in the viewport, the 2D CoPilot automatically shows points on the elements where the circle is tangent to those elements. • In the diameter mode, the visual feedback shows the diameter of the circle. To switch to diameter mode, see
Change 2D CoPilot settings. |
![]() | When you mark the second and third points of the circle: • To set the radius of a circle in the radius mode, press SPACEBAR, click ![]() • To set the diameter of a circle in the diameter mode, press SPACEBAR, click ![]() |
![]() | You can use the Linear Bisector or the Angular Bisector command (on-the-fly) when you draw a circle; for example, to find the midpoint between two circles. • To use a linear bisector: ◦ Press X or, ◦ Right-click and choose Linear Bisector on the context menu or, ◦ Press SPACEBAR or the assigned key and click ![]() • To use an angular bisector: ◦ Press Y or, ◦ Right-click and choose Angular Bisector on the context menu or, ◦ Press SPACEBAR or the assigned key and click ![]() |
![]() | You can use the Line Between 2 Points command (on-the-fly) to create a temporary line and then use the midpoint of this line as a reference to create circles. To create a temporary reference line between two points: a. Press M, or right-click in the viewport and choose Line Between 2 Points on the context menu. Alternatively, press SPACEBAR or the assigned key and click ![]() b. Select any two points on the viewport. For example, you can select two opposite vertices of a rectangle. See
Example: Drawing a rectangle using a line between two points as a reference. |
![]() | You can type a value for the radius before clicking the third point or element. |
![]() | When the 2D CoPilot is active, press SPACEBAR to open the Option Mini Toolbar (OMT) and select Geometry or Construction in the box to change the drawing mode. |