I would like to draw a sequence of about 100 vertical lines, with random intervals.
Is this possible with gimp?
If you are familiar with Inkscape, I would recommend using the
Create Tiled Clones feature to create your vertical lines. You can then add the output to gimp.
First, create a single vertical line, then select it:
Edit > Create Tiled Clones...
Set the number of rows and columns as desired:
Shift X per Column to be at least 100% and the
Shift X Randomize to be greater or equal to the shift:
Here is an idea, select one pixel height of your canvas and use a noise filter
Filter > Noise > Hurl.
Then if you don't want colors and just want like a mask,
Colors > Desaturate.
Now go to the levels
Color > Levels and adjust the arrows until you have the amount of lines and shades/colors you want.
If you want the lines to be thicker you can make more lines when adjusting the levels and then scale to the desired thickness, and height of line.
Hope this gives you an idea!
Here is what I did, I know it's not 100 lines but I did not scale the width: