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Graphics > Scientific visualization > Re: How to resa...
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Re: How to resample continuosly time data to be represented real time ?

by "Skybuck Flying" <BloodyShame@[EMAIL PROTECTED] > May 22, 2008 at 08:32 AM

What do you want to plot on the x and y-axis ?

For example:

Y-axis: Value
/|\
 |
 |
 |
 |
 |
 |
 |
 .--------------------> X-Axis: Time.
/|\
Base Time

Simply store the time in the list as well together with the value.

Then use a variable called "base time"

The base time always starts at the origin.

Now to know where to "plot" the measurements simply do something like
this:

Y = Measurement.Value;
X = Measurement.Time - BaseTime;

Plot( X, Y );

This will draw old measurements on the left
This will draw new measurements on the right.

Then have a timer update the base time... like a few times per second or
so.

This will make the chart "walk" to the left to display new values.

Add new measurements to the back of the list.
Remove old measurement from the front of the list.

To draw/plot the list:

Walk the list from first to last element.

(This is opposite from your drawings ;) maybe you want the chart to walk
to 
the right ? ;))

Hope this helps.

Bye,
  Skybuck.
 




 27 Posts in Topic:
How to resample continuosly time data to be represented real tim
pamela fluente <pamela  2008-05-21 03:50:34 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-21 14:54:10 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-21 07:10:14 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-21 23:25:09 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-21 23:28:00 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-21 23:37:43 
Re: How to resample continuosly time data to be represented real
"Paul E. Black"  2008-05-21 12:54:25 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-21 15:28:16 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-22 01:10:43 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-21 16:55:23 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-22 08:32:16 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-22 02:45:37 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 04:22:23 
Re: How to resample continuosly time data to be represented real
LordOfThePi@[EMAIL PROTEC  2008-05-22 08:49:59 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-22 11:22:21 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 04:31:17 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 05:19:32 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 05:43:27 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 05:53:25 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 06:00:57 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 06:02:22 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-23 06:18:23 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-05-23 11:01:15 
Re: How to resample continuosly time data to be represented real
Patricia Shanahan <pat  2008-05-27 05:52:42 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-28 19:57:24 
Re: How to resample continuosly time data to be represented real
"Skybuck Flying"  2008-05-28 20:03:12 
Re: How to resample continuosly time data to be represented real
pamela fluente <pamela  2008-06-18 10:30:44 

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tan12V112 Sat Nov 22 13:58:44 CST 2008.