* change method "getArmHorizontalDist" to "getArmHorizontalDisplacement"
* change method "getArmHeight" to "getArmVerticalDisplacement"
* for getArmHorizontalDisplacement figure out if measurements are all in
inches
* doing
* change method "getArmHorizontalDist" to "getArmHorizontalDisplacement"
* change method "getArmHeight" to "getArmVerticalDisplacement"
* for getArmHorizontalDisplacement figure out if measurements are all in
inches
* doing