Create a three dimensional circular arc segment by chord bearing, radius and distance.
Home / Tools / Create / Line or Alignment or Polygon / Circular Arc / Chord Bearing and Distance
- Solve module
- Profile module (Alignments)
| Control | Description |
|---|---|
| Name | Type a name for the generated line or click  to increment to the next available name. |
| Start | Input the start vertex. |
| Chord Bearing | Input the chord bearing. |
| Radius | Input the radius for the circular arc. |
| Distance |
Select one of the following methods to input the distance from the Start vertex.
|
| Height Method |
Select one of the following methods to input a height for the end vertex:
|
| 3D circular arc |
Do one of the following:
|
| Clockwise |
Specify the direction of the arc:
|
- The circular arc is created automatically once valid values are input for the arc components.
- Relative heights are computed from the start point.
- It is assumed that the centre point is the same height as the start point.
- Select or clear the Clockwise and 3D circular arc checkbox prior to inputting other values.
- When creating an alignment, you can create 2D circular arcs only.
-
If 3D is cleared:
- Distances input are interpreted as 2 dimensional distances.
- Heights are not used to compute the arc components.
- The arc distance is used to compute the vertices height when the Grade (%) or Grade (1:) height method is selected.
- Lines will display as a circular arcs in the Plan view.
- Vertices heights are used to display the curve in 3D view.
