> The background.PNG is shown full screen with a resolution of 1024*768. The > data in the fixation_xy.txt is the coordinates of eye-movement data, first > column for X axis, second column for Y axis. I wish to do a scatter plot > with the data onto background.PNG. Please give me a helping hand how could I > do this with matplotlib.
!! I am assuming xy-fixation (screen coordinates) values are given with respect to a a lower left origin. (see line [*] in code) import pylab as p im_fn = "background.PNG" xy_fn = "fixation_xy.txt" s = 100 # marker size c = 'r' # marker color marker = 's' # marker type im = p.imread(im_fn) xy = p.loadtxt(xy_fn) xy_normed = xy/[[1024./im.shape[1], 768./im.shape[0]]] p.imshow(im, origin='lower') # [*] p.scatter(xy_normed[:,0], xy_normed[:,1], s=s, c=c, marker=marker) p.show() Arnar ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
