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Under review

Render a part of a series.

fuc2wi 10 years ago • updated by justSomeone 9 years ago • 2
Hi,

I'm using OxyPlot 2014.1.546.0 in a WPF project. I've 10 stairstep series with each ~11000 Points.
To increase performance I want to render only every nth point depending of the zoom?
Eg: Render every 10th point if I see the whole x-Axis and render every 5th point if I see the half of the x-Axis, and so on?

Thanks for your help in advance.
Best regards
Christian
Under review
Oystein Bjorke 10 years ago
The StairStep series has not been profiled for such big datasets yet. Can it be solved in a similar way as we do in `LineSeries`? Please create an issue at GitHub and create a small example that shows the problem!
justSomeone 9 years ago

Hi I have had the same problem and would like it to be solved.

But for a workaround of this problem i just took the line series and put another point

of the same y value on the x value where the next point should be displayed.

Thus i created my own stairstep series out of a line series.

In code this means :

// value and time are double [ ]

for (int i = 1; i < time.Length - 1; i++)
{
if (value[i] != value[i + 1])
series.Points.Add(new DataPoint(time[i], value[i])); //set the point into the series
if (time[i + 1] != null) // if the series has more points
{
series.Points.Add(new DataPoint(time[i + 1], value[i])); // add the same y value to the pos of i+1
}
}

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