Doing simple linear from the 1st sample: When we start we will have: originalX at time originalTime
When a sample arrives we will have: currentX at time currentTime Therefore the rate of change of X to now is given by: rateX = (currentX – originalX) / (currentTime – originalTime) So time needed to get to endX (your value 40) from currentX timeNeeded = (endX – currentX) * rateX However if currentX is fluctuating a large amount then so will timeNeeded. You can use this approach with more points (taking their average) for a more stable approximation. On Oct 3, 6:08 pm, Lance Nanek <[email protected]> wrote: > When you first go above the start threshold then set a member variable > to the time. When you go above the end threshold then subtract that > from the current time to get the time elapsed. > > On Oct 3, 11:43 am, Sonic <[email protected]> wrote: > > > Hi All, > > > I'm wondering how I would go about the following: > > > An int value is sent to a textview called X for example, the value of > > X is constantly changing, so x could equal any int. Now what Im unsure > > how to implement is, if we say X equals 10, I want to be able to time > > how long it takes inbetween the time X would be equal to 40 for > > example. The values of X = 10 and X = 40 are not going to be constant > > it will be gradually increasing, so all as I want to do is time how > > long it takes in seconds to reach a predefined value of X. > > > Any ideas chaps? > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
