3

Gimp is pretty good to draw a straight lines. It is easy as 1) set first point with left click and 2) set second point with shift+left click:

enter image description here enter image description here enter image description here

But when I set opaque to 30-70%, small defect is appeared - first dot is overlaid on my line: enter image description here

How do I deal with this? One another example of this trouble is:

enter image description here

instead of something like this:

enter image description here

6

You can draw the line that you want on a dedicated layer with 100% opacity, then set the layer at 70% opacity or as you like.

  • nice workaround. – aryndin Jul 15 '16 at 19:53
  • 1
    You can also paint with 100% opacity on a layer set to 70% opacity. – Michael Schumacher Jul 16 '16 at 12:17
0

For a quick line here or there, another way is to select your tool (eg: the paint tool), place the dot, -UNDO-, then hit shift and make the line. You will need to select another tool, then come back to the tool again in order to repeat this process. Use Mario's method for anything requiring the lines to intersect or many lines.

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