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  Can CD draw and plot my data into CBEMA curve?
Posted by ahmad jibril on Oct-30-2007 15:54
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Attachments:
Hi,

I use Chardirector(CF-Edition)
Can CD draw and plot my data like CBEMA curve?
example CBEMA curve in attachment file.

Thank's a lot
CBMA-Example.JPG

  Re: Can CD draw and plot my data into CBEMA curve?
Posted by Peter Kwan on Oct-30-2007 18:52
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Hi ahmad,

You chart is an XYChart with a log scale x-axis. In the chart, there are some scatter points and two black curves. I assume the black curves are the CBEMA curves you mentioned.

I am not too sure how is the CBEMA curve defined. If you can provide a few points along the CBEMA curve, then you can ask ChartDirector to join the point using a "spline line layer", and this will give the curve you want.

For the scatter points, you can plot them using a "scatter layer" in ChartDirector.

Hope this can help.

Regards
Peter Kwan

  Re: Can CD draw and plot my data into CBEMA curve?
Posted by ahmad jibril on Oct-31-2007 12:57
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Attachments:
Hi Peter,

Thank's Peter, That's very good idea. I get some point along the CBEMA curve as attachment, as the graph the points are (0.01c,500), (1ms,200), (3ms, 140), (3ms, 120)...etc..as you see from the graph there is no point between 0 or 1us to 0.01c isn't it? so, how to ask chartdirector to make that region? because if I try plot and join the points using the points above, I couldn't find the blank region as the attachment file.

Thank's

Ahmad Jibril
CBEMA.JPG

  Re: Can CD draw and plot my data into CBEMA curve?
Posted by Peter Kwan on Oct-31-2007 17:03
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Hi ahmad,

If you are using auto-scaling, ChartDirector will automatically scale the x-axis to fit your data. In your case, I think ChartDirector will automatically extend the x-axis to 10us, because your smallest point is 0.01c (= 100us), and after adding some margin, the axis starting point should be shifted to 10us.

Anyway, if you want to set up the x-axis to have certain range (independent of your actual data), you can always use setLogScale. For example:

'Set up x-axis to be from 1us to 100s, independent of actual data
c.xAxis().setLogScale(0.000001, 100, 10);

Hope this can help.

Regards
Peter Kwan

  In which Software i plot my data into CBEMA curve?
Posted by Mazhar on Oct-04-2012 23:24
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Please anyone tell me about the Software In which I plot a Curve (CBEMA) and my data is 220V And 50HZ please help me Dear aall....

  Re: In which Software i plot my data into CBEMA curve?
Posted by Peter Kwan on Oct-05-2012 22:43
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Hi Mazhar,

The CBEMA curve in this thread is just a normal line chart. Whether the data are voltage, frequency, temperature, rainfall, etc, does not matter. You can just plot them as a line chart. The different type of data can be reflected by labelling the chart.

Note that ChartDirector is a software component for developers to developer programs that can have charts. ChartDirector is not an end-user program. You would need to use a programming language to use ChartDirector. ChartDirector supports a lot of programming languages. You may download the ChartDirector for your programming language from http://www.advsofteng.com/download.html

Hope this can help.

Regards
Peter Kwan

  Thanks
Posted by Mazhar on Oct-06-2012 10:28
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Thank you  for the help i will try my est to understand it but dear i have a small query .if you donot mind do you help me in it .Can you make a CBEMA curve of any equipment at 220V 50HZ like for
Transformer
Motor
Contactor
relays etc

  Re: Thanks
Posted by Peter Kwan on Oct-06-2012 19:55
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Hi Mazhar,

Yes. You can make the CBEMA curve for anything you like. You just need to have the data.

Regards
Peter Kwan

  cbema curve
Posted by sana on Jan-02-2014 15:21
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can any draw cbema curve to show %tolerance of sag and swell,60% sag and 115% swell
for 3 cycles

  Re: cbema curve
Posted by Peter Kwan on Jan-03-2014 03:28
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Hi sana,

The CBEMA curve is just a line chart. First, you need to obtain the data points that define the CBEMA curve. After you have obtained the data points, you can pass the data points to ChartDirector to draw a line chart. This become the CBEMA curve you need.

Regards
Peter Kwan