Hi,

In a plot I would like to display different data. This results in having some 
problems with performance some times. For example, I must generate a grid, that 
has a custom X spacing and Y spacing. To achieve that, I do the following: 

#   Plot the lines in a 10x10 world
    for a in range( int(5/xSpacing) ):
        p1.plot([a*xSpacing, a*xSpacing], [-5, 5], pen=(150, 150, 150))
        p1.plot([-a*xSpacing, -a*xSpacing], [-5, 5], pen=(150, 150, 150))

    for b in range( int(5/ySpacing) ):
        p1.plot([-5, 5], [b*ySpacing, b*ySpacing], pen=(150, 150, 150))
        p1.plot([-5, 5], [-b*ySpacing, -b*ySpacing], pen=(150, 150, 150))


This approach works. But if the lines that have to be displayed became a lot, 
than I experience lag.

Is there a way to plot these segments by using only one plot? 

Thank you in advance.

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