real time charting..

[dtvonly]

Hi. I am working with a simple data acquisition project that reads data once every x seconds, where x is user control (1 to 5 seconds). I would like to graph each data as it is received by VB6 and not have to wait to build an array before graphing. so a sample data (x,y) would be:

time data
1 4.5 --> chart on graph
2 4.4 --> chart on graph
3 4.3 --> chart on graph
4 4.4 --> chart on graph

and so on.

is there a simple component to do this. MSChart and Excel chart don't.

Thanks.

[vb5prgrmr]

Are you wanting to do something like task manager's CPU usage graph, or something that fills and then wipes itself only to redraw itself as new data comes in? Because, I think you could use the picture/forms line method not only to draw the grid but the lines that graph the data...



Good Luck

[dglienna]

Sure. A quick look to draw from point x,y to the next point, then draw a line to connect. Wait a second or two at the end, and refresh.

[dtvonly]

Hello all. thanks for your feedback. The system I am using tests run time for any flash light. One could die after 4 hours while others will die after 3 days. This run time duration is easily caculated and it will be used as X-axis data. As such, I would like to use a software that automatically update the x-axis data that could contain anywherer from 1000 to 1,000,000 data points. The form/line method is a manual method that could not easily accommodate my requirement. Do you know of any cheap or better still free charting/graphing software? thanks.

[George1111]

Go to planetsourcecode.com and look for Charting - One of the monthly winners a few months back produced a stunning charting system which creates beautiful 3D Bar Charts

http://www.planet-source-code.com/vb...71430&lngWId=1

another
http://www.planet-source-code.com/vb...70778&lngWId=1



If you need line graphs then search for CHART under VB Classic and you'll find bundles