Looking for charting component

  • Thread starter Thread starter Russell Hind
  • Start date Start date
R

Russell Hind

Hi,

I'm looking for a .net charting component to use with VC++.Net 2003.

I don't need one that displays all different sorts of graphs, just a
high-performance one for drawing line charts. Typically 2 lines, each
with 2000 or more points in, and I'd like to refresh the graph at 15-30Hz.

I have tried TeeChart from www.steema.com and it can do this, although
processor usage jumps up dramatically as soon as you resize the graph to
'reasonable' size on the screen.

Cheers

Russell
 
have a look at the office web components (OWC). it is an excel chart wrapped
in a COM object
 
Will that refresh at 15-30 Hz?

- Sahil Malik
Independent Consultant
You can reach me thru my blog - http://dotnetjunkies.com/WebLog/sahilmalik/



Alvin Bruney said:
have a look at the office web components (OWC). it is an excel chart wrapped
in a COM object

--
Regards,
Alvin Bruney
[ASP.NET MVP http://mvp.support.microsoft.com/default.aspx]
Got tidbits? Get it here... http://tinyurl.com/27cok
Russell Hind said:
Hi,

I'm looking for a .net charting component to use with VC++.Net 2003.

I don't need one that displays all different sorts of graphs, just a
high-performance one for drawing line charts. Typically 2 lines, each
with 2000 or more points in, and I'd like to refresh the graph at 15-30Hz.

I have tried TeeChart from www.steema.com and it can do this, although
processor usage jumps up dramatically as soon as you resize the graph to
'reasonable' size on the screen.

Cheers

Russell
Click to expand...
Click to expand...
 
Russell said:
Hi,

I'm looking for a .net charting component to use with VC++.Net 2003.
Click to expand...

Ok, we currently use RChart from www.lohninger.com with C++Builder.
They have said that this will be available for .Net in a few weeks time.

It is an easy to use charting component, written for dealing with large
amounts of data (and we currently use it at 15-30Hz with no problems at
all).

Hopefully, the only slowdown, if any, will be due to the il code, but
that hasn't been so bad in my experiences so far.

Cheers

Russell
 
Hi Russell,
processor usage jumps up dramatically as soon as you resize the graph to
'reasonable' size on the screen.
Click to expand...
Have you tried to use the UseBuffer property ? Using it wll draw items to an
internal canvas to prevent flickering on screen.

Steema.TeeChart.Drawing.Graphics3D gg;
gg.UseBuffer = true;

Best Regards
Josep Lluis Jorge
 
Pep said:
Hi Russell,



Have you tried to use the UseBuffer property ? Using it wll draw items to an
internal canvas to prevent flickering on screen.

Steema.TeeChart.Drawing.Graphics3D gg;
gg.UseBuffer = true;
Click to expand...

Yes, I do use this. It isn't the flickering thats the problem, its
processor usage. We're doing data acquisition at the same time and
graphing it for 'real-time' feedback during set up of instruments, so we
need a no-frills graphing package that can keep up with the data rate.

As mentioned, SDL suite for VCL library does this very well at the
moment, so we'll look at the .net version when its out.

Cheers

Russell
 
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