Making a contourplot in Java from large data-arrays [closed]

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Closed 8 years ago.

I have the following question:

Is there a Tool to make an contureplot in Java during the runtime out of large data arrays?

I found many post related to this question (also here contourplot question and another question) but I didn't found any solution to make a fast contourplot out of large arrays.

I have tried to do it with Jsci and also with jfreechart. With Jsci I got problems displaying the image and with jfreechart it takes veeeerrrrrryyyyy long to make a plot.

What I seek is somthing like matplotlib in python. And the image should look somehow like this

Answer 1

You may be looking for XYBlockRenderer. The image shown in the API is from XYBlockChartDemo1 in the demo. It appears to render 10,000 blocks, 100 x 100, nearly instantly. If your experience varies, editing your question to include a sscce might reveal the problem.