Dear Justin, To quickly answer your question, yes, data is precomputed for higher level viewpoints.
There are several useful articles that talk about this in more depth: Best reference: http://bioinformatics.oxfordjournals.org/content/26/17/2204.abstract Secondarily: http://genome-test.cse.ucsc.edu/~hiram/wigglePresentation.html http://genomewiki.ucsc.edu/index.php/Wiggle Also, there is an article and a wiki page that talk about the binning scheme that is used: 1)Kent WJ, Sugnet CW, Furey TS, Roskin KM, Pringle TH, Zahler AM, Haussler D. The human genome browser at UCSC. Genome Res. 2002 Jun;12(6):996-1006. Link: http://genome.cshlp.org/content/12/6/996.full 2) Link to the wiki page: http://genomewiki.ucsc.edu/index.php/Bin_indexing_system Hope these answer your questions! Feel free to contact the mailing list if you have further questions. Vanessa Kirkup Swing UCSC Genome Bioinformatics Group ----- Original Message ----- From: "Justin Fincher" <[email protected]> To: [email protected] Sent: Tuesday, January 25, 2011 9:01:52 AM Subject: [Genome] Method used to visualize data at different scales Howdy, My name is Justin Fincher and I am a graduate student at Florida State University. I have a question about how data is processed for viewing at multiple scales on the Genome Browser. I am working on visualizing some data similar to some of the datasets found in the Genome Browser and was wondering how the data was processed to be able to quickly show data on a whole chromosome scale, even when the original data may be at 1bp resolution. Is the data pre-processed at multiple resolution levels, or does the visualizer essentially "smooth" the data on the fly based on the size of the window being served to the user? Any assistance in this would be greatly appreciated. - Fincher _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome
