Product Manual

Adding an Arc

to a Plan

1. Select Enter an Arc from the Tools menu located at the

bottom of the Enter Line window.

2. Choose the start point (P1) and end point (P2) of the arc.

These points can be selected from the plan, or from the

list of points, after selecting the corresponding option

through the nearby scroll-down arrow button. You can also

key in manually their numbers (if known).

The selected points will then appear in red on the plan

(see below).

3. Select which third parameter you will be using to let

Layout Pro build the circle underlying the arc you want to

create (this circle intersects the selected start and end

points). This parameter can be:

– Radius: The radius (R) of the underlying circle (default

option).

– Segment Height: The greatest perpendicular distance

(H) from the chord (P1P2 segment) to the arc.

– Center Angle: The angle (

) formed by the start point

(P1), the center point (C) of the underlying circle and

the end point (P2).

– Diameter: The diameter (D=2R) of the underlying circle.

4. Enter the known value for the chosen parameter.

5. Choose whether you wish to define the arc as the short (A)

or long (B) section of the underlying circle (choose Short

or Long).

6. Tap Next. The arc appears in red on the plan.

7. Before entering the arc, you can still define the following:

– Seg. Number: Number of segments of equal length you

want to create along the arc (Default: 1). Creating two

or more segments implies that the corresponding

number of points will be created on the arc.

– Store Center Pt: Enable this option to store the center of

the underlying circle. When enabled, a name is

prompted for this point which you can keep or change.