# areacylinder: Provides the surface area of a cylinder. In Thermimage: Thermal Image Analysis

## Description

Provides the surface area of a cylinder, including the circular bases.

## Usage

 `1` ```areacylinder(Radius, radius=Radius, height, ends = 2) ```

## Arguments

 `Radius` The major radius of the base of the cylinder. `radius` The minor radius of the base of the cylinder. Default is to equal the major Radius in the case of a circular base. `height` The height of the cylinder (alternatively, the length of a horizontal cylinder) `ends` How many ends to include in the surface area calculation (2=both ends, 1=one end, 0=neither end)

## Author(s)

Glenn J Tattersall

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24``` ```## The function is currently defined as function(Radius, radius=Radius, height, ends=2) { Area <- (Radius+radius)*pi*height + ends*pi*Radius*radius Area } # Example calculation: # Typically, a body part might be modelled as cylindrical if it appears to be approximately # circular or elliptical and elongated. By measuring the major diameter (D) and minor # diameter (d) as well as the length or height (l), the overall surface area can be # determined: D<-12 d<-6 l<-18 areacylinder(Radius=D/2, radius=d/2, height=l, ends=2) # To only show surface area of the exposed surface, and exclude the oval base of the # cylinder, set ends=0 areacylinder(Radius=D/2, radius=d/2, height=l, ends=0) ```

Thermimage documentation built on May 29, 2017, 6:47 p.m.