[Arc]   Arc Geometry & Framing
                  Function


The Arc function calculates the descriptive geometry for an arc when given two of the following* as inputs:
Click here for help on finding the radius or diameter of a arc.


Arc Illustration

The Arc function also calculates the length of each stud required to frame an arch.  In addition to two of the above values, this portion of the calculation depends upon the following stored values or settings:

Key
[ o.c. ]
[ Prefs ]
Arched Wall
[ R/Wall ]
Description
Stud on-center spacing
Switches between arches that are framed on the outside vs. framed on the inside.
The extra base length added to every stud.







Example: 

Input
[clr] [clr]
9 [Feet] 10 [Inches]
[ Run ]
3 [Feet] 6 [Inches]
[Rise]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
[ Arc ]
Display
0

    9ft 10in
Run
    9ft 10in
Rise
    3ft 6in
Arch Angle
    141.78°
Arch Length
    12ft 10- 1/2in
Chord Length (Run)
    9ft 10in
Segment Area
    25.12479ft2
Pie Slice (Sector) Area
    33.4997ft2
Segment Height (Rise)
    3ft 6in
On-Center Spacing
    16in
Arched Wall Outside Segment Length 1
    2- 1/16in
Arched Wall Outside Segment Length 2
    8- 13/16in
Arched Wall Outside Segment Length 3
    1ft 10- 1/2in
Note: The above example assumes a 16 inch on-center spacing stored in [o.c.].

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