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Topic: visualizing large datasets (Read 520 times) |
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Oturan_Boga
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visualizing large datasets
« on: Feb 1st, 2005, 10:20pm » |
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Hello;
I am trying to visualize a large dataset. Mainly it is a scatter plot.
At first, I tried making an object and a Array containing myobject, which stored x and y coordinates. This was very slow, so I coded a simple array based implementation. (I have x[n], y[n]) and my loop reads these values and draws a pixel. Well, problem is when the dataset is large, I get an error saying that method setup has more than 65535 elements. putting the array on another method does not work as well.
Is there anyway I can read my data (from a file, database, etc)
Best Regards,
Oturan Boga
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fry
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Re: visualizing large datasets
« Reply #1 on: Feb 1st, 2005, 11:12pm » |
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right, you can't declare an array with 65k elements inside the code, it's bad form anyways.
you should read the data from a file, use loadStrings() to get the data, then splitStrings() or splitFloats or splitInts or whatever to convert it to the values you need.
http://processing.org/reference/loadStrings_.html
http://processing.org/reference/splitFloats_.html
there are examples on those pages for how the code works.
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