Steema Central

Hi,

I am trying to plot chart using TeeChart, I am getting data from the hardware board via serial connection to the PC. I am designing GUI in c#. I am storing those values in different variables. I am getting real time data so i will get data from hardware every 2 sec.

I would like to plot chart between those values stored in variable Vs Time.now. I am trying to update chart with every 2 sec so X-axis time and Y-axis variable value.

which is the best way to draw series in TeeChart? Can any one give me some example?

Hello bijit,

I recommend you taking a look, in the demo project of TeeChartFor.Net, concretely All Features\Axis examples and in Tutorial 4 - Axis Control.

If you have more problems please let me know.

Thanks,

Hi sandra,

I have a problem with TeeChart. I working with GUI design using C#. I am updating chart with real time data. I have different sensor values and i am using three methods to raise event to update chart whenever it has new value(almost every 2sec). I am creating a DATATABLE (datagrid) for each sensor and giving that as data source to the chart.

I am able to update all sensors in the chart and its working nicely but after some time the GUI becoming very slow and not responding(after 1 hour). I thought it has very less memory and i had changed system configuration but after that i have increased memory and 4GB ram but still i have same problem.

Then i tried without saving the values in table and tried with list. Now i got little bit improved performance (3 hours) but still user interface becoming very slow and not responding as it should. I observed that when i keep display Chart TAB open in my GUI then it is once again responding very slow after 1 hour and stops responding, if i don't keep display chart tab and keep display another tab open in GUI then it is responding little bit more time and updating chart in the chart tab as usual.

I mean when i start update chart and keep chart tab visible then it becomes very slow and stops working.

I have tried with arrays also but i have same problem. I din't understand why my GUI is responding like that with chart. If i don't start update chart then my GUI is receiving and showing values continuously around days.

Can you please suggest some idea?

Thanks in advance.
Biji

Hello Bijit,

To try to solve your problem, we need reproduce it. For this reason I would be very grateful if you can arrange a simple project where the problem appears and we can run as-is here, because we can try to suggest you a good solution for it.

Thanks,

Hi sandra,

I am working with real time data logging and updating table, chart.Without connecting to hardware then you don't see anything. I am wondering how could i sent some part of project! Do you need only chart update part or the total project?

Thanks.

Hi biji,

Please try creating a simple example project using a dataset created at run-time, as in the example in this thread.

Thanks in advance.

Hi,

I have created simple example project to understand how i am creating a data-table and how i am updating TeeChart from that source. The code for chart update and creating datatable was written in Log.cs.
How it is initializing chart line for each sensor as shown in sensor1.cs. I have like that for all sensors. I have used only few sensors here in this example.
Please find the attached zip file.
If it is not enough then please let me know what else i can provide.

You need to add TeeChart.dll file, because when i add and convert to zip file, the file size is exceeding 512kb so i can't upload the file. so just i removed it and uploaded. if you want to see teechart in my design you need to place that file in debug folder. I have licence for Teechart.Net v3.

Thanks in advance,
biji.

Hello biji,

Thanks for your project. But, I can not run it, because when I compile the project it throw many Error. Could you send a correct project that we can run here?

On the other hand, in latest version of TeeChart.Net we have improved performance, for this reason, I recommend you check, using latest eval version of TeeChartFor.Net that you can download here, if your performance improves and your problem disappears.