Modifying circles and arcs directly

Tool(s): Circle

You can directly modify all the parameters relevant to the geometry of circles and circular design entities, such as radius, start and end points of an arc, position and proportions, arc length, rise and so on.

There are two decisive factors:

• The handle you use after you have selected a circle or an arc,

  and

• The subsequent setting on the context toolbar.

Using a point handle

To directly modify the arc length or included angle of an arc

• You have selected an arc.

1. Click one of the point handles.
2. Select Change end angle on the context toolbar.
3. Click to specify the new length of the arc.

Note: Of course, you can still modify the arc length and the start and/or end angle by entering values directly in the data entry boxes. What's new in Allplan 2014-1 is that you can switch between degrees and radians when specifying the arc length.

To directly modify the position and radius of an arc

• You have selected an arc.

1. Click one of the point handles.
2. Select Free circle modification on the context toolbar.
3. Click to specify the new position and size of the arc.

Using the geometry handle

To directly modify the radius of a circle or an arc

• You have selected a circle or an arc.

1. Click the geometry handle.
2. Select Change radius on the context toolbar.
3. Click to specify the new radius of the circle or arc.

Note: Of course, you can modify the radius as usual by entering a value directly in the data entry box.

To directly modify the rise of arcs or sectors

• You have selected a circle or an arc.

1. Click the geometry handle.
2. Select Fillet on the context toolbar.
3. Click to specify the new position and size of the arc.