CalculateStep.java

/**
 * Converts from height & gender to estimate of steps taken per km travelled.
 * @author Sunshine Regiment
 */
package conversion;

public final class CalculateStep {
	public CalculateStep() {
	
	}
	/**
	 * To calculate how many steps a person takes per km                        
	 * according to their height and gender.
	 * 
	 * Based on the stride length(length of each step).
	 * Formula: Women .413 * height / Men .415 * height
	 * 
	 * @param profile
	 * @return number of steps per km
	 */
	public static double step (BiometricProfile profile){
		double step;
		double stride_length;
		double height = profile.getHeight();//convert from metres to centimetres
		boolean gender = profile.getGender();
		
		if (gender) {
			stride_length = 0.413 * height;
			//convert to km
			stride_length /= 1000;
			//System.out.println("stride_length: " + stride_length);
		} else {
			stride_length = 0.415 * height;
			//convert to km
			stride_length /= 1000;
			//System.out.println("stride_length: " + stride_length);
		} 
		step = 1/stride_length;
		
		return step;
	}
}